ControlNet User Manual - lvmcc-pubs.rockwellautomation.com

User

Manual

ControlNet�

Communication

Interface

(Cat. No.1770-KFC15,1770-KFCD15)

Allen�Bradley

Important User Information

The illustrations, charts, sample programs and layout examplesshown in this guide are intended solely for purposes of example.Since there are many variables and requirements associated with anyparticular installation, Allen-Bradley does not assume responsibilityor liability (to include intellectual property liability) for actual usebased upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for theApplication, Installation, and Maintenance of Solid-State Control(available from your local Allen-Bradley office), describes someimportant differences between solid-state equipment andelectromechanical devices that should be taken into considerationwhen applying products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, inwhole or in part, without written permission of Allen-BradleyCompany, Inc., is prohibited.

Throughout this manual we use notes to make you aware of safetyconsiderations:

!ATTENTION: Identifies information about practicesor circumstances that can lead to personal injury ordeath, property damage or economic loss.

Attention statements help you to:

• identify a hazard

• avoid the hazard

• recognize the consequences

Important: Identifies information that is critical for successfulapplication and understanding of the product.

ControlNet is a trademark of ControlNet International; PLC is a registered trademark of Allen-Bradley Company, Inc.

Important User Information 1. . . . . . . . . . . . . . . . . . .

Preface P-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Purpose of the Manual P-1. . . . . . . . . . . . . . . . . . . . . . . . . .

Related Publications P-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Related Products P-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Glossary of Terms and Abbreviations P-3. . . . . . . . . . . . . . .

ControlNet System Overview 1-1. . . . . . . . . . . . . . . . . .

Overview of ControlNet 1-1. . . . . . . . . . . . . . . . . . . . . . . . .

Physical Characteristics 1-1. . . . . . . . . . . . . . . . . . . . . . . . .

Communication Protocol 1-2. . . . . . . . . . . . . . . . . . . . . . . .

Understanding the ControlNet Architecture 1-3. . . . . . . . . . .

Planning the Host Cable System 1-3. . . . . . . . . . . . . . . . . . .

Planning for a Parallel Port 1-4. . . . . . . . . . . . . . . . . . . . .

Planning for an RS�232C Serial Port 1-5. . . . . . . . . . . . . .

Introducing the KFC15/KFCD15 Module 2-1. . . . . . . . . .

Overview of the KFC15/KFCD15 Module 2-1. . . . . . . . . . . . .

Compatibility 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

Table of ContentsI–2

Installing the KFC15/KFCD15 Module 3-1. . . . . . . . . . .

Electrostatic Damage 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview of the Installation Procedure 3-2. . . . . . . . . . . . . .

Connecting to a Host through the RS�232C Port 3-3. . . . . . . .

RS�232C Baud Rates 3-3. . . . . . . . . . . . . . . . . . . . . . . .

Cables 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connector 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RS�232C Activity Indicator 3-3. . . . . . . . . . . . . . . . . . . . .

Connecting to a Host through the Parallel Port 3-4. . . . . . . . .

Cables 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connector 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parallel Port Activity Indicator 3-4. . . . . . . . . . . . . . . . . . .

Connecting a Device to the Network Access Port 3-5. . . . . . .

Cables 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting to the AC Power Supply (KFC15) 3-5. . . . . . . . .

Connecting to the DC Power Supply (KFCD15) 3-6. . . . . . . .

Connecting to the ControlNet Cable System 3-7. . . . . . . . . .

Attaching the KFC15/KFCD15 Module to a Wall or Mounting Bracket 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring the KFC15/KFCD15 Module 4-1. . . . . . . . .

Overview of Configuration Procedures 4-1. . . . . . . . . . . . . .

Displays 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pushbuttons 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring the KFC15/KFCD15 Module Using Pushbuttons 4-4

Viewing Basic Parameter Settings 4-4. . . . . . . . . . . . . . . .

Configuring the Basic Parameters 4-5. . . . . . . . . . . . . . . .

Configuring the Advanced Parameters 4-8. . . . . . . . . . . .

Saving Configuration Changes 4-10. . . . . . . . . . . . . . . . . .

Exit without Saving 4-12. . . . . . . . . . . . . . . . . . . . . . . . . .

Setting Factory Defaults 4-13. . . . . . . . . . . . . . . . . . . . . . .

Verifying the Communication Parameters 4-13. . . . . . . . . . . .

Table of Contents I–3

Communicating with the KFC15/KFCD15 Module 5-1. . .

DF1 Communication 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . .

Serial Communication 5-2. . . . . . . . . . . . . . . . . . . . . . . . . .

Parallel Communication 5-4. . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting the KFC15/KFCD15 Module 6-1. . . . . .

Interpreting the Status LEDs 6-1. . . . . . . . . . . . . . . . . . . . . .

Interpreting the Seven�Segment LED Displays 6-4. . . . . . . . .

Product Specifications A-1. . . . . . . . . . . . . . . . . . . . . .

RS�232C Interface A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parallel Port Interface A-1. . . . . . . . . . . . . . . . . . . . . . . . . .

ControlNet Interface A-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Network Access Port (NAP) Interface A-2. . . . . . . . . . . . . . .

Electrical A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Physical A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Environmental A-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Agency Safety Certification A-3. . . . . . . . . . . . . . . . . . . . . .

Agency Emissions Certification A-4. . . . . . . . . . . . . . . . . . . .

European Union Directive Compliance A-4. . . . . . . . . . . . . .

Installation Requirements A-4. . . . . . . . . . . . . . . . . . . . . .

Cabling and Pinouts B-1. . . . . . . . . . . . . . . . . . . . . . . .

Cabling and Pinouts for RS�232C Connection B-1. . . . . . . . .

Cabling and Pinouts for Parallel Port Connection B-5. . . . . . .

DF1 Diagnostic Command Support C-1. . . . . . . . . . . . .

Diagnostic Loop C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Read Counters C-2. . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Status C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Counter Reset C-5. . . . . . . . . . . . . . . . . . . . . . .

Table of ContentsI–4

Writing a Parallel Communication Driver D-1. . . . . . . . .

DF1 Parallel Communication D-1. . . . . . . . . . . . . . . . . . . . .

Data Transmission D-4. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Data Transfer in Byte Mode D-5. . . . . . . . . . . . . . . . . . . .

Data Transfer in Nibble Mode D-6. . . . . . . . . . . . . . . . . . .

Preface

Publication 1770�6.5.20 - June 1997

Preface

The 1770-KFC15/KFCD15 Communication Interface provides acommunication link between a ControlNet� cable system anddevices with a serial or parallel port that do not connect directly tothe cable system, such as programming terminals, portablecomputers, and other serial/parallel devices.

The 1770-KFC15/KFCD15 Communication Interface refers to thefollowing modules: 1770-KFC15, or 1770-KFCD15. The physicalfeatures that distinguish the KFCD15 from the KFC15 are:

• DC power connector (1771-KFCD15)

• Reset switch (1771-KFCD15)

• Single, 0.5-amp, slow-blow, 250-volt fuse (1771-KFCD15)

• Single, 0.25-amp, slow-blow, 250-volt fuse (1770-KFC15)

Purpose of the Manual

Throughout this manual we refer to both Communication Interfacesas the KFC15/KFCD15 module. Where information applies only to aparticular module this will be stated. Use the manual to:

• install and configure the KFC15/KFCD15 module

• understand how the KFC15/KFCD15 module communicates onthe network (procedures and protocols)

• troubleshoot for problems

PrefaceP–2


Related Publications

The following publications contain information related to the1770-KFC15/KFCD15 Communication Interface:

Publication Reference Number

Allen�Bradley ControlNet Cable System Planning andInstallation Manual

1786�6.2.1

Allen�Bradley ControlNet Cable System Component List AG�2.2

Allen�Bradley Industrial Automation Wiring and GroundingGuidelines

1770�4.1

Allen�Bradley PLC�5 Family Programmable ControllersHardware Installation Manual

1785�6.6.1

Allen�Bradley PLC�5 Programming Software Manual 6200�6.4.7

Related Products

The KFC15/KFCD15 modules creates an interface between theControlNet cable system and devices with a serial or parallel port. Ithas been verified to work with the following products:

• Allen-Bradley ControlNet taps (1786-TPR, 1786-TPS,1786-TPYR and 1786-TPYS)

• Allen-Bradley high voltage AC and DC type repeaters(1786-RPT and 1786-RPTD)

• Allen-Bradley PLC-5�s (1785-L20C15, L40C15, L60C15,L80C15)

• Allen-Bradley computer interface cards (1784-KTC15 and1784-KTCX15)

• Allen-Bradley 1794 Flex I/O Adapters (1794-ACN15,1794-ACNR15)

Preface P–3


• Allen-Bradley 1771 I/O Adapters (1771-ACN15, ACNR15)

• Rockwell Software’s RSLogix5�, RSView32�, and RSLinx�

• Network Access cable (1786-CP)

Other ControlNet devices and software that comply with theControlNet Network specifications can also be used with theKFC15/KFCD15 module.

Glossary of Terms and Abbreviations

This manual uses the following terms as defined below.

ControlNet—the communication architecture that allows theexchange of messages between devices that follow the ControlNetspecifications. It is a realtime, control-layer network that provideshigh-speed transport for both time-critical I/O and messaging data.A ControlNet cable system can be either single or redundant media.

DF1—Allen-Bradley’s RS-232 proprietary protocol

DH+� (Data Highway Plus�) network—existing Allen-Bradleypeer-to-peer network for messaging and program upload/download

full duplex—simultaneous send/receive between devices,point-to-point

half duplex—data transmission in one direction at a time, usuallypoint-to-multipoint

NAP (network access port)—input/output (RJ-45 style) connectorfor a programming terminal to gain full access to the network

network—a collection of connected nodes (end devices). Theconnection paths between any pair of nodes can include repeaters,routers, bridges and gateways.

PrefaceP–4


network address—the network address of a node on the ControlNetcable system. This address must be in the range of 1 to 99 (decimal)and be unique to that subnet. A subnet can contain a maximum of99 nodes.

node—any physical device connecting to the ControlNet cablesystem that requires a network address in order to function on thenetwork.

NUT (network update time)—the rate at which access to thenetwork is granted

parallel port—input/output port for a device that transmits multipledata and control bits over wires connected in parallel

PCCC (Programmable Controller CommunicationsCommands)—an Allen-Bradley communication protocol used onthe Data Highway Plus network

repeater—a two-port active physical layer component thatreconstructs all traffic it hears on one network segment side andretransmits it to another network segment side. Repeaters allow forextensions in network distance, conversion to alternate media(coaxial cable, fiber, etc.) and altering the topology of the network.

RIO (Remote Input/Output)—an Allen-Bradley remoteinput/output link that supports remote, time-critical, I/O and controlcommunication between a master PLC controller and its remote I/Oand adapter mode slave processors

RS-232C port—a serial port that complies with accepted industrystandards for serial communications connections

segment—trunkline sections connected via taps with terminators ateach end, and with no repeaters

Preface P–5


serial port—input/output connector for a device that transmits dataand control bits sequentially over a single transmission line. (SeeRS-232C port.)

subnet—network segments connected by repeaters to make up oneControlNet network

tap—the connection device between any device and the trunkline.A tap is required for each node and for both sides of each repeater.

terminator —a special circuit that prevents signal reflections fromoccurring at the end of a cable

trunkline —the bus or central part of a cable system

trunkline section—a length of trunkline cable between any two taps

Chapter 1


ControlNet System Overview

This chapter briefly describes the network architecture. For detailedinformation, refer to the ControlNet Cable System Planning andInstallation Manual (1786-6.2.1).

Overview of ControlNet

ControlNet combines the capabilities of Data Highway Plus andRemote I/O in a single local area network (LAN). It providestime-critical communication capabilities for realtime control, andmessaging services for peer-to-peer communication.

Several devices can be connected to the ControlNet cable systemincluding personal computers, programmable logic controllers,modems, variable speed drivers, operator interfaces, and otherdevices with direct ControlNet cable system connections. To connectdirectly, devices must be able to handle ControlNet communicationprotocol. The PLC-5/40C15 is such a device. Some equipment,however, requires an intermediate device to act as an interfacebetween it and the network. The KFC15/KFCD15 module acts asthis interface. Refer to Chapter 2 for more information on theKFC15/KFCD15 module.

Physical Characteristics

The physical base for ControlNet is coaxial cable with redundantmedia connections as an option. The allowable length of a cablesegment in the network depends on the number of nodes in thesegment. A single subnet can accommodate several segments byusing repeaters.

1–2 ControlNet System Overview


Communication Protocol

The most important function of the ControlNet network is totransport time-critical control information. Other information is alsotransported but is not allowed to interfere with time-criticalmessages. This is done through a communication protocol thatdetermines access to the ControlNet network using a time-sliceaccess algorithm. Access to the network occurs at auser-configurable period called the network update time (NUT).The NUT is divided into three parts:

Scheduled—every node is guaranteed one opportunity to transmit

Unscheduled—remaining time is divided among all nodes on around-robin basis. This rotation of access repeats until the timeallotted to the unscheduled portion is used up. The amount of timeavailable for the unscheduled portion is determined by the trafficload of the scheduled portion.

Maintenance—the moderator node (the one with the lowest address)transmits information to keep the other nodes synchronized in time

ControlNet System Overview 1–3


The part of the interval in which any given data will be sent dependson its priority, of which there are two levels:

Scheduled Data—time-critical information that must be sent at afixed and repetitive rate is sent exclusively in the scheduled portionof the NUT.

Unscheduled Data—information that does not have strict timeconstraints. It is sent only if no data is waiting to be sent at a higherpriority.

The KFC15/KFCD15 module supports non-time-critical messagingand programming data, and sends only unscheduled data.

Understanding the ControlNet Architecture

The ControlNet cable system provides the flexibility to design acommunication network for your application. To take advantage ofthis flexibility, you should spend enough time planning how to installyour cable system before assembling any of the hardware. Consultthe ControlNet Cable System Planning and Installation Manual(1786-6.2.1) for a full description of the cable system and detailedinstallation instructions.

Planning the Host Cable System

A serial or parallel host (computer, controller, or other device) canconnect to the KFC15/KFCD15 module through either the parallel orRS-232C serial port. Both ports on the KFC15/KFCD15 modulecannot be active at the same time so you must decide which port isthe most appropriate for your application. This decision determinesthe cabling and hardware requirements for your system.



Communication between either a parallel or serial host and theKFC15/KFCD15 module is carried out using Allen-Bradley’sproprietary DF1 protocol. DF1 is a full- or half-duplex protocol thatcarries messages intact over a link. The protocol delimits messages,detects and signals errors, retries after errors, and controls messageflow. In a typical network, as discussed in this manual, the host is themaster station and the KFC15/KFCD15 module is the slave. For acomplete description of the DF1 protocol, refer to the DataHighway/Data Highway Plus/DH-485 Protocol and Command SetReference (1770-6.5.16).

Planning for a Parallel Port

The parallel port interface consists of eight, bidirectional data linesand nine handshaking lines. Consider the following requirementswhen planning for a parallel port connection,

• Data transfers occur in half-duplex mode between the parallelhost and the KFC15/KFCD15 module.

• Data transfer mode is configured using pushbuttons on theKFC15/KFCD15 module and can be bytes or nibbles (four bits).

ControlNet System Overview 1–5


• When connection is via the parallel port you can have only oneKFC15/KFCD15 module per host.

• The maximum recommended cable length between theKFC15/KFCD15 module and the parallel host is 3 m (10 ft).

• The cable between the KFC15/KFCD15 module and the parallelhost must be shielded.

For detailed cabling and pinout information see Appendix B,Cabling and Pinouts. For a discussion of data transfer modes andother communication issues, see Chapter 5, Communicating with theKFC15/KFCD15 Module and Appendix D, Writing a ParallelCommunication Driver.

Planning for an RS-232C Serial Port

Serial port communication can take place in either full- orhalf-duplex mode. If a single KFC15/KFCD15 module per serialhost is used, either half-duplex or full-duplex communication cantake place.



If more than one KFC15/KFCD15 is connected to a host, onlyhalf-duplex communication can occur and modems must be usedbetween the KFC15/KFCD15 module and the host. Determine howmany KFC15/KFCD15 modules you will need before planning thelayout of the host system because cable length and baud rate areaffected as well. See Appendix B for details.

Chapter 2


Introducing theKFC15/KFCD15 Module

Overview of the KFC15/KFCD15 Module

The KFC15/KFCD15 module enables you to connect devices thatcannot communicate directly to the ControlNet. Such devices willuse either an RS-232C serial port or an enhanced parallel port toconnect to the KFC15/KFCD15 module. Device types requiringconnection to the ControlNet cable system are varied, includingmulti-vendor automation equipment, personal computers,mini-computers, and modems.

The 1770-KFCD15, as shown below, is functionally equivalent to the1770-KFC15, except it is powered on by a 24 V dc power supplyinstead of a 115 V ac supply.

2–2 Introducing the KFC15/KFCD15 Module


The KFC15/KFCD15 module connects to the ControlNet from one(Channel A) or both of its two BNC connectors via a standard,one-meter, ControlNet coaxial tap. For redundant media, bothconnectors are used.

Introducing the KFC15/KFCD15 Module 2–3


The KFC15/KFCD15 module has three ports for device connections:

RS-232C serial port—provides half- or full-duplex communicationwith a serial node such as a host computer, an intelligent controlleror a modem

parallel port—provides half-duplex communication with a parallelhost such as a computer

network access port—lets you connect a programming terminal orother device to the KFC15/KFCD15 module for full network accesswithout disrupting the cable wiring

The serial and parallel ports use DF1 protocol while the remainingnetwork access port handles ControlNet packets directly.

Status, Host, and ControlNet LEDs on the top of the KFC15/KFCD15indicate current operating conditions of the unit and communicationactivities taking place through the ports.

2–4 Introducing the KFC15/KFCD15 Module


Use the pushbuttons and seven-segment LEDs in the configurationpanel on the bottom of the unit to set and verify the ControlNetaddress for the KFC15/KFCD15 module and all serial RS-232C orparallel communication parameters.

Compatibility

The KFC15/KFCD15 is compatible with the following interfaces:

• RS-232C serial ports

• IBM PC-compatible parallel ports

• IBM Type 1 PS/2-compatible parallel ports

• ControlNet devices that comply with the ControlNet specification

• programming terminal products that comply with ControlNetspecifications for the Network Access Port

Chapter 3


Installing the KFC15/KFCD15Module

Use this chapter to install the KFC15/KFCD15 module. This chapterdescribes:

• an overview of the general installation procedure

• how to connect the KFC15/KFCD15 module to a host through theRS-232C serial port

• how to connect the KFC15/KFCD15 module to a host through theparallel port

• how to connect the KFC15/KFCD15 module to a host through theisolated network access port (NAP)

• how to connect the KFC15/KFCD15 module to the ControlNetcable system

• how to attach the KFC15/KFCD15 module to a wall or mountingbracket

Pinout and wiring details are provided in Appendix B, Cabling andPinouts. Read this if you need to construct cables. If a tap is notavailable on the ControlNet cable system for the KFC15/KFCD15module, refer to the ControlNet Cable System Planning andInstallation Manual (1786-6.2.1) to determine if your cable systemcan accommodate another node and to plan where to mount the tap,then follow the mounting instructions at the end of this chapter.

3–2 Installing the KFC15/KFCD15 Module


Electrostatic Damage

!ATTENTION: Electrostatic discharge can damagesemiconductor devices inside the KFC15/KFCD15module. To guard against electrostatic damage wear anapproved wrist strap grounding device, or touch agrounded object to rid yourself of electrostatic chargebefore handling the products.

Overview of the Installation Procedure

1. Make sure that the ControlNet cable system can accommodateadditional nodes (one per KFC15/KFCD15 module beinginstalled).

2. Determine the placement of the KFC15/KFCD15 module (desk,wall or mounting bracket).

3. Connect the KFC15/KFCD15 module to the host through eitherthe parallel or serial port, or through the network access port.

4. Connect the KFC15/KFCD15 to a power supply as detailed laterin this chapter.

5. Configure the communications parameters on theKFC15/KFCD15 as detailed in Chapter 4, Configuring theKFC15/KFCD15 Module.

6. Connect the KFC15/KFCD15 to the network using taps.

Note: Placement of the KFC15/KFCD15 module willdetermine if mounting comes before or after connecting thecables.

�

Installing the KFC15/KFCD15 Module 3–3


Connecting to a Host through the RS�232C Port

A single, full- or half-duplex, RS-232C serial port using the DF1protocol provides communications with either a host computer orintelligent controller. For an explanation of full- and half-duplex seeChapter 5, Communicating with the KFC15/KFCD15 Module.

RS-232C Baud Rates

The KFC15/KFCD15 module supports the following baud rates:300, 600, 1200, 2400, 4800, 9600, 19200 and 38400.

Cables

Cabling for the RS-232C connector will vary depending on yourapplication. You can use either a 3-wire cable or a cable withhandshaking lines. For wiring diagrams see Appendix B, Cablingand Pinouts. The maximum recommended cable lengths are:

• for baud rates ≤ 19200 15 m (50 ft)

• for baud rates = 38400 7.5 m (25 ft)

Connector

The RS-232C interface connector at the KFC15/KFCD15 moduleend is a DB-25 male connector (DTE) with EIA (ElectronicsIndustries Association) standard pinout as outlined in Appendix B,Cabling and Pinouts.

RS-232C Activity Indicator

The HOST LED will flicker when the KFC15/KFCD15 module isreceiving or transmitting data over the RS-232C interface. The LEDwill be off when no data activity is occurring over the RS-232Cinterface.



Connecting to a Host through the Parallel Port

The parallel port interface is compatible with the parallel ports ofIBM PCs, and also with bidirectional parallel ports of PS/2computers. Two data transfer modes are available to providecompatibility. Both types of parallel ports can send data from thecomputer in bytes and receive information in nibbles. You canconfigure the KFC15/KFCD15 module to send data back in bytes,instead of nibbles, for computers with bidirectional parallel ports.Specify the mode of parallel port operation using the push buttons onthe configuration panel. Configuration is discussed in Chapter 5,Communicating with the KFC15/KFCD15 Module. In either case,the appropriate software driver is required on the host computer.

Cables

The maximum cable length recommended is 3 m (10 ft). The cableshould be shielded.

Connector

The parallel port interface connector is a DB-25 female connectorwith a standard Centronics pinout. See Appendix B, Cabling andPinouts for cabling and pinout details.

Parallel Port Activity Indicator

The HOST LED will flicker when the KFC15/KFCD15 module isreceiving or transmitting data over the parallel interface. The LEDwill be off when no data activity is occurring over either theRS-232C or the parallel port interface.



Connecting a Device to the Network Access Port

Use the isolated network access port to connect a transitory device,such as a programming device, to the KFC15/KFCD15 module.

Cables

You must use the Allen-Bradley Network Access Cable (Cat. No.1786-CP).

Connecting to the AC Power Supply (KFC15)

The KFC15 module contains an internal transformer that allows youto switch between 115V ac or 230V ac at 60 HZ or 50 Hzrespectively.

!ATTENTION: The KFC15 module does not have anON/OFF switch so power is applied to the module assoon as you plug it in. For this reason you must selectthe voltage before plugging in the KFC15 module toprevent damaging the unit.



To select the input voltage:

1. Locate the red voltage selector switch on the side of the KFC15module beside the fuses.

2. Slide the switch to the left for 115V ac or to the right for 230V ac.The selected voltage is visible in the indented part of the switch.

3. Plug in the KFC15 module.

Connecting to the DC Power Supply (KFCD15)

The KFCD15 module operates on 18 to 40 volts dc power, providingan RS-232C interface to ControlNet, while maintaining all thefunctionality of the 1770-KFC15.

!ATTENTION: This equipment is to be powered by aClass 2 power supply only (such as 1784-DNPS), andis to be installed by qualified service personnel only.

Connect the KFCD15 module to a power supply, as shown. Thisstarts the initialization routine.



!ATTENTION: The KFCD15 module does not havean ON/OFF switch so power is applied to the moduleas soon as you plug it in.

To reinitialize the module at any time after it has been running, pressthe reset switch on the side of the unit.

Connecting to the ControlNet Cable System

To connect the KFC15/KFCD15 to the ControlNet cable system usean approved ControlNet tap. Refer to the ControlNet Cable SystemPlanning and Installation Manual (1786-6.2.1) for completeinstructions on connecting the tap to the cable system.



!ATTENTION: If the KFC15/KFCD15 module isconnected to a cable system that does not supportredundant media, the tap dropline should be connectedto the BNC connector labeled channel A. The channelB connector should be unused. If the cable system isredundant, the KFC15/KFCD15 module should beconnected such that all devices on the network use thesame cable for the same channel. The channel Aconnector on all products should be connected to thesame cable. The same applies for the channel Bconnectors.

To connect the KFC15/KFCD15 module to the tap do the following:

1. If the KFC15/KFCD15 module is not the last device in thesegment:

• Connect the tap to the coaxial trunkline.• Connect the dropline BNC to the channel A BNC of the

KFC15/KFCD15 module.

2. If the KFC15/KFCD15 module is the last device in the segment,install a terminator at the end of the cable segment, then followthe instructions in step 1.

3. If using redundant media, repeat either step 1 or step 2 forchannel B of the KFC15/KFCD15 module.



Attaching the KFC15/KFCD15 Module to a Wall or Mounting

Bracket

You can set the KFC15/KFCD15 module on any flat surface, such asa desk or shelf, or attach it to a mounting bracket or directly to a wallfor vertical placement. Use the two #10-32 threaded inserts on theunit if you are mounting it vertically.

To attach the KFC15/KFCD15 module to a wall:

1. Mark the position of the screw inserts on the surface to which it isto be attached.

2. Drill holes through the surface, as shown in the drawing above.

3. Insert screws from the back of the surface, through the holes andinto the screw inserts, then tighten.

Note: The configuration pushbuttons and displays will not beaccessible or visible if the KFC15/KFCD15 module is wall orbracket mounted.

�

Chapter 4


Configuring theKFC15/KFCD15 Module

Use this chapter to configure the KFC15/KFCD15 communicationparameters via the pushbuttons and seven-segment displays in theconfiguration panel on the bottom of the module.

Overview of Configuration Procedures

The KFC15/KFCD15 module has two modes of operation, run modeand configuration mode. During normal operation theKFC15/KFCD15 module functions in run mode. To change thecommunication parameters the unit must be in configuration mode.Any changes made to the communication parameters take effect assoon as they are saved and the unit returns to run mode. While inconfiguration mode the KFC15/KFCD15 module continues tocommunicate according to its current settings. This allows you toview the current settings without interrupting the operation of theunit.

Important: Verify all parameter settings before connecting theKFC15/KFCD15 module to the network. Incorrectsettings may cause unreliable and unpredictableoperation of the network.

Parameter settings are saved in non-volatile memory so that you donot lose them even if power to the KFC15/KFCD15 module isinterrupted. When the KFC15/KFCD15 module is in run mode, theseven-segment display is off to conserve power.

4–2 Configuring the KFC15/KFCD15 Module


Important: If the KFC15/KFCD15 module displays symbols otherthan those shown in this chapter, it is malfunctioning.Contact your A-B representative to arrange to return theunit for servicing.

Displays

The following drawing shows the displays on the configuration panelon the bottom of the KFC15/KFCD15 module. The left display (onedigit) shows the number of the parameter being configured. The tworight displays (two digits) show the current setting for that parameter.Communication parameters are configured in two menus, a mainmenu for basic parameters, and a sub-menu for more advancedparameters for the RS-232C serial port.

11024

VIEW DATA EXIT

SAVE

Parameter NumberCurrent Setting

Configuring the KFC15/KFCD15 Module 4–3


Pushbuttons

The operation of the three pushbuttons labelled VIEW, DATA, and EXIT

in the configuration panel are described in the following table.

Pressing this button orbutton combination:

Performs this task:

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

VIEW ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ


In run mode, places the KFC15/KFCD15 module inconfiguration mode.This is the only button that has a function in run mode.

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ



In configuration mode, cycles through the possiblecommunication parameters (displayed on the left digit).

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ



If you hold the button down for more than 1 second, theparameter number advances automatically.

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁDATA ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ






In configuration mode, cycles through the possiblecommunication settings for the parameter shown on the left.The data is displayed on the right two digits. If you hold thebutton down for more than 1 second, the settings advanceand accelerate automatically.When the left display shows A, press DATA to enter thesub�menu.

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

EXIT ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ



In configuration mode at the main menu, returns theKFC15/KFCD15 module to run mode without saving anychanges. From the sub�menu, returns to the main menu.ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

VIEW + EXIT





In configuration mode, saves all configuration changes, andreturns the KFC15/KFCD15 module to run mode from eithermenu. The KFC15/KFCD15 module will begin operating withthe new configuration as soon as it returns to run mode.

VIEW + DATA In configuration mode, resets all communication parametersto their factory defaults. The changes do not take effect untilthe configuration is saved, and the KFC15/KFCD15 modulereturns to run modei.e. until VIEW and EXIT are pressedsimultaneously. If only EXIT is pressed the unit returns torun mode without making the factory default changes.



Configuring the KFC15/KFCD15 Module Using Pushbuttons

Before configuring the KFC15/KFCD15 module, you shoulddetermine the parameter settings the network requires. If they differfrom the factory defaults shown in the parameter tables on thefollowing pages, use the directions below to change them.

For normal operation, you must configure the basic communicationparameters. For special communication needs you can configure theadvanced communication parameters, which provide more flexibilityin the operation of the KFC15/KFCD15 module.

While you are changing the parameters in configuration mode, theKFC15/KFCD15 module continues to operate using its currentsettings. The changed parameter settings do not take effect until theyare saved and the KFC15/KFCD15 module returns to run mode.

Viewing Basic Parameter Settings

To view the current parameter settings:

1. Press the VIEW button to enter configuration mode. The firstparameter number is displayed on the left display, with its currentsetting in the right two displays.

2. Press VIEW to display the next parameter and its current setting, orhold it down to cycle through the communication parameters.When the last parameter is reached, the configuration numberwraps back to the start.

3. Press EXIT to return the KFC15/KFCD15 to run mode withoutchanging parameters.



Configuring the Basic Parameters

The basic parameters are numbered zero to eight. The letters A and Falso come up on the seven-segment LEDs as you cycle through themas described above. The letter A lets you into the sub-menu thatcontains the advanced communication parameters. The settingsdisplayed beside letter F are the series and revision number of theKFC15/KFCD15 module.

To configure the basic parameters:

1. Press the VIEW button to enter configuration mode.

2. Press VIEW as often as necessary or hold it down until the desiredparameter is reached.

3. Once the desired parameter is displayed, press the DATA button tocycle through the available settings. Only valid selections for thegiven parameter option are displayed.

4. When you have reached the desired data setting, you can pressVIEW to display the next parameter.

5. When all relevant parameters have been set, press VIEW and EXIT

together to save the parameter settings and return the module torun mode.



The basic communication parameters and their valid settings aredescribed in the table below.

ParameterNumber

Parameter Description FactoryDefault

ControlNet

NetworkAddress

Auto Addressing (AA) or 01-99 AA

Port

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁDF1 port ÁÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁ


Serial (00), Parallel (01) ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

00

RS�232C

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

Baud Rate ÁÁÁÁÁÁÁÁÁÁ





300 (03), 600 (06), 1200 (12), 2400(24), 4800 (48), 9600 (96), 19200 (19),38400 (38) bits/sec

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

96

Parity None (00), Even (01), Odd (02) 00

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

Full/HalfDuplex





Full duplex (00), Half duplex (01) forserial port only

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

00

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ


Parallel

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

Parallel PortTransfer




Nibble data transfers to host (01), Bytedata transfers to host (02)

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

01



ParameterNumber

FactoryDefault

DescriptionParameter



DF1

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

Error DetectionÁÁÁÁÁÁÁÁÁÁ



BCC Block Check Code (00), orCRC16 Cyclic Redundancy Check (01)

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

00

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

DF1 StationAddress





The station address of this node on theDF1 link. Valid addresses are 00�77 Octalinclusive.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

00

DiagnosticCommandExecution

Determines whether PCCC diagnosticcommands are executed directly by theKFC15/KFCD15 (01) or passed throughto the host computer (00).

01



Other

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

Sub�Menu ÁÁÁÁÁÁÁÁÁÁ



Lets user into the sub�menu. ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

N/A

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

Series/Revision





Displays the module series andrevision.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

N/A



Configuring the Advanced Parameters

The advanced communication parameters, numbers zero to five, arein the sub-menu. Sub-menu parameters are followed by a decimal inthe display. View them the same way basic parameters are viewed,when you enter the sub-menu.

VIEW DATA EXIT

SAVE

Advanced Parameter NumberCurrent Setting

Sub-Menu Indicator

1. To enter the sub-menu, press VIEW until parameter A appears inthe left display and dashes in the right display, then press DATA.

The number on the left changes from A to 0, and its decimal pointlights up, remaining lit as long as you are in the sub-menu.

2. Press VIEW to display the sub-menu parameters, as described forthe basic parameters, until you reach one you want to configure.

3. Press DATA to display and cycle through the settings for theadvanced parameter until you get to the one you want.

4. Repeat the process until you have completed setting theparameters.

5. Press VIEW and EXIT while in the sub-menu to save the changesand return the module to run mode.



Note: You can press EXIT to return to the main menu from thesub-menu, if necessary. This does not end the configurationsession. You can go back to the sub-menu as described in step 1. The changes you have made to advanced parametersare not lost as long as you go through the save and exitprocedure, described later in this chapter, when you return themodule to run mode.

ParameterNumber

Parameter Description FactoryDefault

Number ofRetries

Number of allowable retries per attempton the RS�232C link: 00 � 10

02

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

DuplicateMessageDetection





Disabled (00), Enabled (01). If enabled,the KFC15/KFCD15 will acknowledgeand discard duplicate messagesreceived on the DF1 link.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

01

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

DF1 ACKTime�out






The time to wait for an ACK from thehost computer. The time is from 0.1 to 5seconds in 0.1 second increments(01�50). To calculate the time�out,multiply the number in the display by0.1 second.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

10

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ModemHandshaking





Disabled (00), Enabled (01)

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

00

�



ParameterNumber

FactoryDefault

DescriptionParameter

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

CTS toTransmit Delay









The delay between the CTS signal andthe start of transmission (half duplexonly). The delay is from 0 to

0.99 seconds, in 10 ms.(0.01 second) increments (00�99). To calculate the delay, multiply thenumber in the display by 0.01 seconds.This parameter takes effect only whenthe KFC15/KFCD15 is in half�duplexmode and handshaking is enabled.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

No delay (00)

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁEnd ofMessage toRTS Off









The delay between the end of amessage and the KFC15/KFCD15setting RTS inactive. The delay is from0 to 0.99 seconds in 10 ms

(0.01 second) increments. To calculate the delay, multiply thenumber in the display by 0.01 seconds.This parameter takes effect only whenthe KFC15/KFCD15 is in half�duplexmode and handshaking is enabled.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

No delay (00)

Saving Configuration Changes

To save all parameters in both the main menu and the sub-menu innon-volatile memory:

• Press the VIEW and EXIT buttons simultaneously.

The KFC15/KFCD15 module returns to run mode. This ends theconfiguration session.



If the save is successful, the display will show three dashes for aperiod of two seconds. When the KFC15/KFCD15 module returns torun mode, the new configuration takes effect immediately, and thedisplays turn off.

VIEW DATA EXIT

SAVE

11022

If the save is not successful, the KFC15/KFCD15 module ismalfunctioning. The left display will show hardware fault number 6and the STATUS LED will show solid red. If this happens, contactyour A-B representative.

VIEW DATA EXIT

SAVE

11023



Exit without Saving

To exit without saving while in the main menu:

• Press EXIT.

The KFC15/KFCD15 module returns to run mode fromconfiguration mode without saving any changes. This ends theconfiguration session and the previous settings will remain ineffect.

To return to the main menu from the sub-menu:

• Press EXIT.

You can move between the two menus as much as you need toduring any given configuration session.

If you exit from the main menu without saving, as described above,any changes made in the sub-menu are not saved. If you save andexit from the main menu, changes made in the sub-menu are savedas well.

Important: If the KFC15/KFCD15 module is left inactive (i.e., withno buttons pressed) in configuration mode for 3minutes, it returns to run mode. Any changes madesince going into configuration mode will not be saved.Also, if power to the unit is interrupted while inconfiguration mode, any changes made will not besaved.



Setting Factory Defaults

To reset all parameters in both menus to their factory defaults:

• Press the VIEW and DATA buttons simultaneously when inconfiguration mode.

When this button combination is pressed, the KFC15/KFCD15displays the first parameter and its factory default.

To save the factory default parameters:

• Press the VIEW and EXIT buttons simultaneously.

If only the EXIT button is pressed, the unit returns to run modewithout changing the parameters to their factory defaults.

Verifying the Communication Parameters

Before connecting the KFC15/KFCD15 to the network, cyclethrough the parameter settings and verify that they are correct.Incorrect settings may cause unreliable and unpredictable operationof the network.

Chapter 5


Communicating with theKFC15/KFCD15 Module

Read this chapter if you are configuring a half-duplex network or ifyou plan to write a communication driver for the KFC15/KFCD15module.

DF1 Communication

The KFC15/KFCD15 module supports both full-duplex andhalf-duplex DF1 protocol between it and a host device. This protocolcan be used over either the serial or parallel interface to send PCCCor ControlNet messages across the ControlNet cable system to othernodes. For more information on PCCC messages refer to theAllen-Bradley Data Highway/Data Highway Plus/Data Highway485 Protocol and Command Set Reference Manual (1770-6.5.16).

The host device must send messages in a form that the end node it iscommunicating with understands. The KFC15/KFCD15 module doesnot translate between two types of messages. If the end node onlyrecognizes one type, the host device’s communication driver mustsend the same form.

5–2 Communicating with the KFC15/KFCD15 Module


Serial Communication

Serial communication with the KFC15/KFCD15 module can beeither full or half duplex DF1. The duplex used depends on theoverall application’s requirements.

Full-duplex serial protocol:

• is a direct link that allows simultaneous two-way transmission

• often requires a system programmer to use interrupts andmulti-tasking techniques

• is intended for high-performance applications where maximumdata throughput is necessary

• gives faster data throughput than half duplex, but is more difficultto expand or to use when communicating with more than oneKFC15/KFCD15 module

11031

ProgrammableController or

Host Computer

KFC15/KFCD15

End Devices

RS-232C Link

TT

E-D

T

E-D

T

E-D

ControlNet

Half-duplex serial protocol:

• is a protocol for one host processor and one or more field devices.(You must use modems if there is more than oneKFC15/KFCD15 module.)

Communicating with the KFC15/KFCD15 Module 5–3


• allows only one host processor or field device to transmit at anyone time

• provides a less effective usage of resources than full duplex, butis easier to implement

Half-duplex protocol can be used on a point-to-point link, but morecommonly it operates on a link with all nodes interfaced throughhalf-duplex modems. There can be from 0 to 63 decimal nodessimultaneously connected to a single link.

With half duplex protocol, you can use a:

two-circuit system—the master sends and slaves receive on onecircuit, slaves send and master receives on the other

one-circuit system—master and slaves send and receive on the samecircuit

11030

PLC Computeror

Other Hosts

Modem

ModemModem Modem

RS-232C Link

Multidrop Network

Nodes

RS-232C Link

ControlNet

RS-232C Link

T T T T

N N N

Nodes

ControlNet

T T T T

N N N

KFC15/KFCD15

Nodes

ControlNet

T T T T

N N N

KFC15/KFCD15KFC15/KFCD15

5–4 Communicating with the KFC15/KFCD15 Module


Parallel Communication

Parallel communication with the KFC15/KFCD15 module can behalf-duplex DF1 only. Full duplex is not supported.

Half-duplex parallel protocol:

• uses the same protocol as with half-duplex RS-232C (serial)

• must be point-to-point (cannot be multidrop)

11032

Computer orOther Host

Parallel Link

Nodes

N N N

KFC15/KFCD15

ControlNetT T T T

With parallel half-duplex communication, a host device can sendeight bits of the DF1 message at a time to the KFC15/KFCD15module. The host device can receive four bits of a message at a timefrom the module in NIBBLE MODE. In instances where the hostdevice has a bidirectional parallel port, it can receive messages eightbits (one byte) at a time in BYTE MODE. See Chapter 4,Configuring the KFC15/KFCD15 Module for instructions on settingthe operating mode.

If you plan to use parallel port communication and your applicationrequires that you write you own driver, see Appendix D, Writing aParallel Communication Driver, for details.

Chapter 6


Troubleshooting theKFC15/KFCD15 Module

Use this chapter to interpret the indicators (status LEDs andseven-segment LED displays) on the KFC15/KFCD15 module tohelp you troubleshoot problems.

Interpreting the Status LEDs

There are four, bi-color (red/green) status LEDs on the top of theKFC15/KFCD15 module. Two are for ControlNet showing physicallayer status of channels A (primary connection) and B (redundantmedia connection), one is for communication on the RS-232C orparallel port (HOST), and one is for the KFC15/KFCD15 (STATUS).These indicators can help you diagnose problems with the module’sinstallation and operation.

6–2 Troubleshooting the KFC15/KFCD15 Module


Label Position

The following terms are used to describe the state of the LEDs:

solid—on continuously in the defined state

flashing—each LED alternates between the two defined states (orwith OFF if only one state is defined). This only applies to a singleLED viewed independently of the other. If both ControlNet LEDsare flashing, they flash together (in phase).

railroad —both LEDs alternate between the two defined states at thesame time. This only applies to both ControlNet LEDs when viewedtogether. The two LEDs are always in opposite states (out-of-phase).

flickering —intermittent on/off between the two states, often in anerratic pattern

Troubleshooting the KFC15/KFCD15 Module 6–3


LED State Probable Cause Recommended Action

Channels Aand B

OFF No power or reset.and B(viewedtogether)

SOLID RED Failed unit Check network setup then cyclepower to the KFC15/KFCD15module. If the fault persists,contact your authorizedAllen�Bradley representative ordistributor.

RAILROADRED - GREEN

Self test None

RAILROADRED - OFF

Incorrect nodeconfiguration(duplicate node, ID,etc.)

Check network address andother ControlNet configurationparameters.

Channel Aor B(viewed

OFF Channel disabled orunused

Program network for redundantmedia if required.

(viewedseparately)

SOLID GREEN Channel gooddata isbeing received andtransmitted on thischannel

None

FLASHINGGREEN - OFF

Temporary errors ordevice is not online

None. Unit will corect itself.

FLASHINGRED - GREEN

Bad networkconfiguration

Check network setup then cyclepower to the KFC15/KFCD15module.

FLASHINGRED - OFF

Media fault or no othernodes present on thenetwork

Check media for broken cables,loose connector, missingterminators, etc.

HOST OFF No activity or no hostpresent

None

FLICKERINGGREEN � OFF

Link OKdata is beingtransmitted or receivedover the RS�232C orparallel port

None

SOLID RED Link faulttheKFC15/KFCD15 hasdetected acommunication fault

Check cable pinouts andparameter settings. If the faultpersists contact your authorizedAllen�Bradley representative ordistributor.

FLASHINGRED

Not defined None



LED Recommended ActionProbable CauseState

STATUS OFF No power is applied tothe KFC15/KFCD15module

None

SOLID GREEN Normal operationthemodule is OK

None

FLASHINGGREEN

The KFC15/KFCD15 isnot properly configured

Check and change parametersettings.

SOLID RED Critical faulttheKFC15/KFCD15 hasdetected anunrecoverable faultand must be replaced

Contact your authorizedAllen�Bradley representative ordistributor.

FLASHINGRED

Non�critical faulttheKFC15/KFCD15 hasdetected a recoverablefault

Reconfigure or reset theKFC15/KFCD15.

Interpreting the Seven�Segment LED Displays

Under normal conditions, the numeric displays should be off unlessyou are configuring the communication parameters. Duringoperation, the numeric displays are used to indicate hardware faultconditions. When the STATUS LED is solid or flashing red, the leftparameter display will show a number indicating the type ofhardware fault. The following table gives a description of the faults.

Troubleshooting the KFC15/KFCD15 Module 6–5


ÁÁÁÁÁ

ÁÁÁÁÁ

This number: Indicates this fault: Meaning

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Processor Fault

ÁÁÁÁÁÁÁÁÁÁÁÁ




A hardware fault was detected in theprocessor. This is a major fault. Return theKFC15/KFCD15 for servicing.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Invalid Firmware





The Flash EPROM does not contain validfirmware. New firmware must be downloadedto the unit.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁRAM Fault






The static RAM cannot be written to reliably ora parity error has occurred. Cycle power to theKFC15/KFCD15.If the problem persists, return theKFC15/KFCD15 for servicing.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Stuck Button DetectedÁÁÁÁÁÁÁÁÁÁÁÁ









One or more pushbuttons are stuck on. Thiscould be caused by a mechanical problem withthe buttons, or by an object pressing on thepushbuttons. If the cause is mechanical, theKFC15/KFCD15 should be returned forservicing. Otherwise, remove the pressurefrom the pushbuttons to clear the faultcondition. The KFC15/KFCD15 will continue tocommunicate when this fault is detected, butconfiguration will not be possible.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Flash EPROM WriteFault





The Flash EPROM could not be programmedcorrectly during download of new firmware. This is a major fault. Return theKFC15/KFCD15 for servicing.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Flash EPROM MajorFault





The module was unable to write the newconfiguration to the Flash EPROM. This is a major fault. Return theKFC15/KFCD15 for servicing.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Flash EPROM MinorFault








On power up, the KFC15/KFCD15 detectedinvalid configuration data in the Flash EPROM.The module recovered by writing the factorydefault configuration to the Flash EPROM. Youmust power the module off and back on, andthen reconfigure it. This is not a major fault, but if the problempersists, return the KFC15/KFCD15 forservicing.



Indicates this fault: Meaning

ÁÁÁÁÁ

ÁÁÁÁÁ

This number:

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Power Failure






The power supply voltage is below theminimum rating for the KFC15/KFCD15.The module will continue to communicatewhen this fault is detected, but configurationwill not be possible.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ


ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

Invalid NetworkAddress





The chosen network address is greater thanthe highest network address ControlNet isconfigured for.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

A

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁDuplicate NetworkAddress




There is a device on the ControlNet networkwith the same address.

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁB

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

UnrecoverableFirmware Error





Failed to re�program the boot block of theFlash EPROM. Return the KFC15/KFCD15module for servicing.

If the displays show symbols other than those shown in this chapter,this also indicates that the module is malfunctioning. In this case,contact your A-B representative.

Appendix A


Product Specifications

RS�232C Interface

• Start Bits 1

• Data Bits 8

• Parity None, Even, Odd

• Stop Bits 1

• Baud Rates 300, 600, 1200, 2400, 4800, 9600,19200, 38400

• Connector DB-25P (male)

• Output RS-232C

• Protocol Allen-Bradley DF1

• Cable Length Recommended maximum of 7.5 m (25 ft)at 38400 baud, or 15 m (50 ft) at lowerbaud rates

• Cable Type Shielded

Parallel Port Interface

• Connector DB-25 (female)

• Data Format DF1 Nibble or DF1 Byte transfers with handshaking

• Cable Length Recommended maximum of 3 m (10 ft)

• Cable Type Shielded

A–2 Product Specifications


ControlNet Interface

• Connectors Standard BNC Connectors

• Cable RG-6 75-ohm coaxial cable

• Media Redundancy Connection for 2 independent coaxial cables

• Ground Isolation Dual transformers

Network Access Port (NAP) Interface

• Connector RJ-45 8-pin, phone jack with shield

• Ground Isolation Opto-isolated

Electrical

• KFC15 Voltage Selectable 115V ac/230V ac

• KFCD15 Voltage Nominal 24V dcOperating 18V dc to 40V dc

• Frequency 50 Hz/60 Hz

• Power 23 W

• KFC15 Fusing Double-fused -UL 198G and CSA 22.2 No. 59 rated, 5 mm x 20 mm, 0.25 A,250 V fuses

• KFCD15 Fusing 5 mm x 20 mm0.5 A, slow-blow, 250-V fuse

Product Specifications A–3


Physical

• Dimensions 11.7 cm (4.6 in.) wide x 17.8 cm (7 in.) long x 5.1 cm (2 in.) high

• Weight 0.9 kg (2 lb) approximately

• Mounting Table-top wall/bracket mount

Environmental

• Operating Temperature 0�C to 60�C (32�F to 140�F)

• Storage Temperature -40�C to 85�C (-40� to 185�F)

• Operating Humidity 5% to 95% (non-condensing)

Agency Safety Certification

• CSA CSA C22.2 No. 950 (Canada)“Information Technology Equipment”File # LR 62086CSA 22.2 No. 213 - M1987“Non-Incendive Electrical Equipment for usein Class 1, Division 2 Hazardous Locations”File # LR 62086 (KFCD15 only)

• UL 1950 File # E137331 (KFC15)1950 “Information Technology Equipment”File # E 102275 (KFCD15)

A–4 Product Specifications


Agency Emissions Certification

• FCC FCC Class A (USA)

• Industry Canada ICES 003, Class A (Canada) – KFCD15

European Union Directive Compliance

The following modules are marked with the

ÎÎÎÎ

ÎÎÎÎ

ÎÎ

ÎÎ mark, indicating

that they are approved for installation within the European Unionand EEA regions: 1770-KFC15 series A, Rev A; and 1770-KFCD15series A, Rev A. These modules have been designed to meet thefollowing directives.

Installation Requirements

If the KFC15/KFCD15 is installed within the European Union orEEA regions, the following regulations apply.

EMC Directive—This product is tested to meet Council Directive89/336/EEC Electromagnetic Compatibility (EMC) and thefollowing standards, in whole or in part, documented in a technicalconstruction file:

• EN 50081-2 EMC – Generic Emission Standard, Part 2 –Industrial Environment

• EN 50082-2 EMC – Generic Immunity Standard, Part 2 –Industrial Environment

The product is intended for use in an industrial environment.

Product Specifications A–5


Low Voltage Directive—The KFC15/KFCD15 is also designed tomeet Council Directive 73/23/EEC Low Voltage, by applying thesafety requirements of EN 61131-2 Programmable Controllers, Part2 – Equipment Requirements and Tests.

For specific information required by EN 61131-2, see the appropriatesections in this publication, as well as the following Allen-Bradleypublications:

• Industrial Automation Wiring and Grounding Guidelines,publication 1770-4.1

• Automation Systems Catalog, publication B111

Appendix B


Cabling and Pinouts

This appendix contains the pinout and wiring information required ifyou need to construct cables before installing the KFC15/KFCD15 toa host device.

Cabling and Pinouts for RS�232C Connection

The KFC15/KFCD15 RS-232C connector is a DB-25 male with thefollowing EIA standard pinout:

Signal I/O Pin

GND Chassis ground . 1

TXD Transmitted data O 2

RXD Received data I 3

RTS Request to send O 4

CTS Clear to send I 5

DSR Data set ready I 6

COM Signal common . 7

DCD Data carrier detect I 8

DTR Data terminal ready O 20

The following diagrams illustrate wiring for a three-wire cable and acable with handshaking lines. The maximum recommended cablelengths are:

• baud rates ≤ 19200 15 m (50 ft)

• baud rates = 38400 7.5 m (25 ft)

B–2 Cabling and Pinouts


Figure B.1 Three Wire Connections to IBM Computers(25�pin)

11008

Shield

TXD 2 3 RXD

1770�KFC15/KFCD15

RXD 3

GND 7

2 TXD

7 GND

Host Computer

1

Figure B.2 Three Wire Connections to IBM Computers(9�pin)

11009

Shield

TXD 2 2 RXD

1770�KFC15/KFCD15

RXD 3

GND 7

3 TXD

5 GND

Host Computer

1

If you require active DSR and CTS signals and you don’t requirehandshaking lines from the KFC15/KFCD15 module, add jumpers tothe computer connections as shown in the next two illustrations.

Figure B.3 Jumper Positions for DSR and CTS Lines (25�pin)

11012

Shield1

TXD 2 3 RXD

1770�KFC15/KFCD15

RXD 3

GND 7

2 TXD

7 GND

Host Computer

4 RTS

5 CTS

6 DSR

8 DCD

20 DTR

Cabling and Pinouts B–3


Figure B.4 Jumper Positions for DSR and CTS Lines (9�pin)

11013

Shield1

TXD 2 2 RXD

1770�KFC15/KFCD15

RXD 3

GND 7

3 TXD

5 GND

Host Computer

7 RTS

8 CTS

6 DSR

1 DCD

4 DTR

If you are using handshake signals with your computer, use pinoutsas shown in the next two illustrations.

Figure B.5 Connection to IBM Computer with HandshakeSignals (25�pin)

11034

Shield1

TXD 2 3 RXD

1770-KFC15/KFCD15

RXD 3

RTS 4

2 TXD

5 CTS

Host Computer

CTS 5

GND 7

4 RTS

7 GND

DSR 6 20 DTR

DCD 8

DTR 20

6 DSR

8 DCD



Figure B.6 Connection to IBM Computer with HandshakeSignals (9�pin)

11033

Shield1

TXD 2 2 RXD

1770-KFC15/KFCD15

RXD 3

RTS 4

3 TXD

8 CTS

Host Computer

CTS 5

GND 7

7 RTS

5 GND

DSR 6 4 DTR

DCD 8

DTR 20

6 DSR

1 DCD

The KFC15/KFCD15 module is connected to a modem through theRS-232C serial port.

Figure B.7 Connection between the KFC15/KFCD15 and aModem

11014

Shield1

TXD 2 2 RXD

1770�KFC

RXD 3

RTS 4

3 TXD

4 RTS

Modem

CTS 5

DSR 6

5 CTS

6 DSR

GND 7 7 GND

DCD 8

DTR 20

8 DCD

20 DTR

Cabling and Pinouts B–5


Cabling and Pinouts for Parallel Port Connection

The parallel port interface connector is a DB-25 female with theCentronics standard pinout shown in the table below. The polarity inthe fourth column applies when a signal is active. Negative polarityindicates an active low signal, while positive polarity indicates anactive high signal.

Signal I/O Pin Polarity

Strobe I 1 -

Data 0 I/O 2 +

Data 1 I/O 3 +

Data 2 I/O 4 +

Data 3 I/O 5 +

Data 4 I/O 6 +

Data 5 I/O 7 +

Data 6 I/O 8 +

Data 7 I/O 9 +

Acknowledge O 10 -

Busy O 11 +

P. End O 12 +

Select O 13 +

Auto Feed I 14 -

Error O 15 -

Initialize Printer I 16 -

Select Input I 17 -

Ground . 18 � 25 .



The following diagram illustrates the wiring for a cable to connectthe KFC15/KFCD15 to a host computer through the parallel port.A shielded cable must be used.

Figure B.8 Connection to IBM Computer through the ParallelPort (25�pin)

11003

Male DB�25Connectorto 1770�KFC15/KFCD15

- Strobe DB�25Connector toIBM�CompatibleHost Computer

1 1

+ Data 02 2

+ Data 13 3

+ Data 24 4

+ Data 35 5

+ Data 46 6

+ Data 57 7

+ Data 68 8

+ Data 79 9

- Acknowledge10 10

+ Busy

+ P. End11 11

12 12

+ Select13 13- Auto Feed

- Error

14 14

15 15

- Initialize Printer16 16

- Select Input

Ground17 17

18-25 18-25

Appendix C


DF1 Diagnostic CommandSupport

The information in this appendix deals with DF1 communicationsbetween the host processor and KFC15/KFCD15 module. TheKFC15/KFCD15 module interprets and responds to the followingdiagnostic commands from the host:

Description Command Byte Function Code (hex)

ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

Diagnostic Loop ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

06 ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

00

ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

Diagnostic Read Counters ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

06 ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

01

ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

Diagnostic Status ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

06 ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

03

ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

Reset Diagnostic Counters ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

06 ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

07

In the Command and Reply Format tables below, all values are inhex and the following abbreviations are used:

ADDR—address of data to be readCMD—command codeFNC—function codeSTS—status codeTNS—transaction number

C–2 DF1 Diagnostic Command Support


Diagnostic Loop

You can use this command to check the integrity of the transmissionsover the communication link. The command message transmits up to243 bytes of data to a node interface module. The receiving moduleshould reply to this command by transmitting the same data back tothe originating node.

Table C.A Command Format

1 byte 1 byte 2 bytes 1 byte 243 bytes max

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

CMD06

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

STS ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

TNS ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

FNC00

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

DATA

Table C.B Reply Format

1 byte 1 byte 2 bytes 243 bytes max

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

CMD46

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

STS ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

TNS ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

DATA

Diagnostic Read Counters

This command reads the diagnostic counters from theKFC15/KFCD15 module. The format of these counters is givenbelow. The address and size fields can have any value (but they mustbe included).

Table C.C Command Format

1 byte 1 byte 2 bytes 1 byte 2 bytes 1 byte

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

CMD06

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

STS

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

TNS

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

FNC01

ÁÁÁÁÁ

ÁÁÁÁÁ

ÁÁÁÁÁ

ADDR0000

ÁÁÁÁ

ÁÁÁÁ

ÁÁÁÁ

SIZE00

DF1 Diagnostic Command Support C–3


Table C.D Reply Format

1 byte 1 byte 2 bytes 16 bytes

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

CMD46

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

STS ÁÁÁÁÁÁ

ÁÁÁÁÁÁTNS ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

DATA

Table C.E Reply Values

ÁÁÁÁ

ÁÁÁÁ

1

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ


Total DF1 packets received, low byte

ÁÁÁÁ

ÁÁÁÁ

2



Total DF1 packets received, high byte

ÁÁÁÁ

ÁÁÁÁ

3



Total DF1 packets transmitted, low byte

ÁÁÁÁ

ÁÁÁÁ

4



Total DF1 packets transmitted, high byte

ÁÁÁÁ

ÁÁÁÁ

5



Number of DF1 retries

ÁÁÁÁ

ÁÁÁÁ6



Number of DF1 packets where the retry limit was exceeded

ÁÁÁÁ

ÁÁÁÁ7



Number of DF1 NAKs sent

ÁÁÁÁ

ÁÁÁÁ

8



Number of DF1 NAKs received

ÁÁÁÁ

ÁÁÁÁ

9



Number of DF1 bad messages receivedÁÁÁÁ

ÁÁÁÁ

10



Number of RS�232C line errors

11 Total good ControlNet packets received, low byte

12 Total good ControlNet packets received, high byte

13 Total bad ControlNet packets received, low byte

14 Total bad ControlNet packets received, high byte

15 Total ControlNet packets transmitted, low byte

16 Total ControlNet packets transmitted, high byte

C–4 DF1 Diagnostic Command Support


Diagnostic Status

This command requests a block of status information from anRS-232C device. The reply contains the information in its DATAfield. The status information varies from device to device. The statusblock is shown below.

Table C.F Command Format

1 byte 1 byte 2 bytes 1 byte

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

CMD06

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

STS

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

TNS

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

FNC03

Table C.G Reply Format

1 byte 1 byte 2 bytes 24 bytes

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

CMD46

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

STS ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

TNS ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

DATA

Table C.H Reply Values

Data Byte Description Status Reply

1 Mode/Status Byte 00 (No Modes)

2 Interface/Processor Type Bits 0 � 3: Interface type(E = Extended)Bits 4 � 7: Processor type(F= Computer)

FE (Extended)

3 Extended Interface Type 5F (KFC15) 60 (KFCD15)

4 Online/Offline Mode 0 = online; 1 = offline

DF1 Diagnostic Command Support C–5


Data Byte Status ReplyDescription

5 Series/RevisionBits 0�4:

Bits 5�7:

0 = Revision A1 = Revision B, etc.0 = Series A1 = Series B, etc.

6 � 16 Bulletin Name = ASCII

�1770�KFC15 "

�1770�KFCD15 "

17 � 24 Reserved for factory use only Values may vary

Diagnostic Counter Reset

This command resets the diagnostic counters listed above.

Table C.I Command Format

1 byte 1 byte 2 bytes 1 byte

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

CMD06

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

STS

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

TNS

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

ÁÁÁÁÁÁ

FNC07

Table C.J Reply Format

1 byte 1 byte 2 bytes

ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

CMD46

ÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁ

STS ÁÁÁÁÁÁÁÁ

ÁÁÁÁÁÁÁÁ

TNS

Appendix D


Writing a ParallelCommunication Driver

The KFC15/KFCD15 supports both full-duplex and half-duplex DF1protocol over the RS-232C link. For details of the protocol format,refer to the document Allen-Bradley Data Highway/Data HighwayPlus/DH-485 Communication Protocol and Command Set ReferenceManual (1770-6.5.16).

DF1 Parallel Communication

To communicate over the parallel port between a host computer andthe KFC15/KFCD15 use the link layer protocol of half-duplex DF1.In this setup, the computer is the host device and theKFC15/KFCD15 is the peripheral.

If the host supports bidirectional data on the parallel port you can usethe Byte Transfer Mode. If the host supports output data only on theparallel port use Nibble Transfer Mode.

In Byte Transfer Mode, the host transmits and receives data one byte(eight bits) at a time. In Nibble Transfer Mode, the host transmitsdata one byte at a time, but receives data from the KFC15/KFCD15one nibble (four bits) at a time.

The physical interface consists of eight data lines and ninehandshaking lines. Four of the handshaking lines are controlled bythe host and five by the KFC15/KFCD15. The table below showshow the lines of the parallel port are used for both Byte and Nibblemodes.

D–2 Writing a Parallel Communication Driver


Pin Pin Notation BYTE Mode NIBBLE Mode

1 Strobe Host Data Clock/

Acknowledge (ACK)

Host Data Clock/

Acknowledge (ACK)

2 Data 0 Data 0 to/from

KFC15/KFCD15

Data 0 to

KFC15/KFCD15


KFC15/KFCD15

Data 1 to

KFC15/KFCD15


KFC15/KFCD15

Data 2 to

KFC15/KFCD15


KFC15/KFCD15

Data 3 to

KFC15/KFCD15


KFC15/KFCD15

Data 4 to

KFC15/KFCD15


KFC15/KFCD15

Data 5 to

KFC15/KFCD15


KFC15/KFCD15

Data 6 to

KFC15/KFCD15


KFC15/KFCD15

Data 7 to

KFC15/KFCD15

10 Acknowledge KFC15/KFCD15 Data

Clock/

Acknowledge (ACK)

KFC15/KFCD15 Data

Clock/

Acknowledge (ACK)

11 Busy KFC15/KFCD15 Flow

Control

(BUSY)

Data 3/Data 7/BUSY

from KFC15/KFCD15

12 P. End KFC15/KFCD15 End of

Transmission (EOT)

Data 2/Data 6/EOT from

KFC15/KFCD15

13 Select Data 1/Data 5 from

KFC15/KFCD15

14 Auto Feed Host Flow Control

(BUSY)

Host Flow Control

(BUSY)

15 Error KFC15/KFCD15 End of

Transmission (EOT)

Data 0/Data 4/EOT from

KFC15/KFCD15

16 Initialize

Printer

Host Initialization of

KFC15/KFCD15 (INIT)

Host Initialization of

KFC15/KFCD15 (INIT)

Writing a Parallel Communication Driver D–3


Pin NIBBLE ModeBYTE ModePin Notation

17 Select Input Host Transmit Control

(Host/KFC15/KFCD15)

Host Transmit Control

(Host/KFC15/KFCD15)

18�25 Ground Ground Ground

The host communication software must turn on pin 17 (HostTransmit Control) to transmit data and reset it to receive data fromthe KFC15/KFCD15 module. Every byte transmitted to theKFC15/KFCD15 module must be clocked with a positive transitionon pin 1. Every byte or nibble sent from the KFC15/KFCD15module must be clocked with a positive transition on pin 10.

The status indicators signify the following:

BUSY—a device is busy processing

EOT—a device has completed transmission

ACK —a transmission has been received

To reset parallel communications at any time, the host should resetpin 14 (Auto Feed) and set its data clock (pin 1). Then, the hostdevice follows by resetting both pin 17 (Select Input) and pin 16(Initialize Printer). The KFC15/KFCD15 module shouldacknowledge by resetting its Busy and its Acknowledge lines.

The host should set Busy whenever it is reading a byte or nibble sentto it from a KFC15/KFCD15 module, resetting it when ready for thenext piece of the DF1 message.



In Nibble mode, receiving data from the KFC15/KFCD15 module isa little more complex. The lower nibble of a byte is sent first, thenthe upper nibble on the next data block. After the host acknowledgesthe upper nibble, the KFC15/KFCD15 acknowledges by setting thedata clock (pin 10) high. At this point, the status indicators Busy (pin11) and EOT (pins 12 and 15) from the KFC15/KFCD15 can be readby the host device. The status indicators are overwritten with thenext piece of data when the host Busy pin is reset.

Data Transmission

The following describes the actions that should be taken by both thehost and KFC15/KFCD15 to send and transmit data. Note that 1means logical 1 or high, regardless of whether or not the signal isnormally active high or active low.

On power up, the host should do the following to initializecommunication:

1. Set pin 1 (Strobe) to 1 and pin 14 (Auto Feed) to 0.

2. Set pin 17 (Select Input) and pin 16 (Initialize Printer) to 0. Thesetwo lines must be be held low for a minimum of 50 ms to allowthe KFC15/KFCD15 to detect them.

To send data from the host computer to the KFC15/KFCD15 the hostshould:

1. Set pin 17 (Select Input) and pin 16 (Initialize Printer) to 1.

2. Check that the KFC15/KFCD15’s pin 11 (Busy) is set to 0.

3. Place data on the data lines.

4. Set pin 1 (Strobe) to 0 then 1.



To receive data from the host, the KFC15/KFCD15:

1. Sets pin 11(Busy) to 1.

2. Reads data.

3. Sets pin 10 (Acknowledge) to 0 then 1.

4. Sets pin 11 (Busy) to 0.

At this point if the host has more data to send, it can repeat the aboveprocedure until the entire packet is sent. Then, if data is expectedfrom the KFC15/KFCD15, the host should set pin 17 (Select Input)to 0 to enter either Byte or Nibble mode.

Data Transfer in Byte Mode

To send data in Byte mode from the KFC15/KFCD15 to the host, theKFC15/KFCD15:

1. Checks that the host’s pin 14 (Auto Feed) is set to 0.

2. Places data on the data lines.


To receive data in Byte mode, the host:

1. Sets pin 14 (Auto Feed) to 1.

2. Reads the data.

3. Sets pin 1 (Strobe) to 0 then 1.

If there is more data to send, the KFC15/KFCD15:

� Sets pin 15 (Error) and pin 12 (P. End) to 0.

and the host should:

� Set pin 14 (Auto Feed) to 0, then repeat its receive procedure.



If there is no more to send, the KFC15/KFCD15:

1. Sets pin 15 (Error) and pin 12 (P. End) to 1.

2. Sets pin 10 (Acknowledge) to 1.

and the host sets pin 17 (Select Input) to 1.

Data Transfer in Nibble Mode

To send data in Nibble mode from the KFC15/KFCD15 to the host,the KFC15/KFCD15:


2. Places the lower nibble on the handshaking lines.


To receive the lower nibble, the host:


2. Reads the data.



To send the upper nibble, the KFC15/KFCD15:


2. Places the upper nibble on the handshaking lines.




To receive the upper nibble, the host:


2. Reads the data.


At this point the KFC15/KFCD15 sets pin 11 (Busy) to 0. Thiscompletes the transmission of one byte. If there is more data to send,the KFC15/KFCD15:

� Sets pin 15 (Error) and pin 12 (P. End) to 0.

and the host:

� Sets pin 14 (Auto Feed) to 0, then repeats its receive procedure.

If there is no more to send, the KFC15/KFCD15:

1. Sets pin 15 (Error) and pin 12 (P. End) to 1.

2. Sets pin 10 (Acknowledge) to 1.

and the host sets pin 17 (Select Input) to 1.

Numbers

1770�KFC15/KFCD15Communication Interface. See

KFC module

A

ACK, D-3See also Acknowledge

Acknowledge, D-2

advanced parametersconfiguring, 4-8description, 4-9

B

basic parameters, description, 4-6

BUSY, D-3

Byte Transfer Mode, D-1, D-5

C

cablingparallel port, B-5RS�232 connection, B-1

command support, DF1 diagnostic, C-1

communication parameters, 4-1advanced, 4-8basic, 4-4changing, 4-1configuring, 4-2, 4-4

communication protocolmaintenance transmission, 1-2

overview, 1-2scheduled data, 1-3scheduled tranmissions, 1-2unscheduled data, 1-3unscheduled transmissions, 1-2

configurationdisplays, 4-2overview of procedures, 4-1

configuration mode, KFC, 4-1

ControlNet, P-3communication protocol, 1-2connecting to, 3-7network architecture, 1-1, 1-3overview, 1-1

D

Data Highway Plus. See DH+

data transfer mode, 4-6byte, 1-4nibble, 1-4

DF1, P-3, 1-4, 2-3, 3-3diagnostic command support,

C-1diagnostic counter reset, C-5

command format, C-5reply format, C-5

diagnostic loop, C-2command format, C-2reply format, C-2

diagnostic read counters, C-2command format, C-2reply format, C-3reply values, C-3

diagnostic status, C-4command format, C-4

Index

IndexI–2

reply format, C-4

DF1 communication, 5-1

DF1 Parallel Communication, D-1data transmission, D-4initialize communication, D-4

DF1 port, 4-6

DH+, P-3, 1-1

E

EOT, D-3

F

factory defaults, setting, 4-13

flashing LED, 6-2

flickering, 6-2

full duplex, P-3serial protocol, 5-2setting, 4-6

H

half duplex, P-3parallel protocol, 5-4serial protocol, 5-2setting, 4-6

host cable system, planning, 1-3

Host Data Clock, D-2

I

invalid firmware, 6-5

K

KFC15/KFCD15 Data Clock, D-2

KFC15/KFCD15 moduleattaching to wall or mounting

bracket, 3-9compatibility, 2-4configuration

exit without saving, 4-12saving, 4-10

configuration mode, 4-1configuration overview, 4-1configuring basic parameters,

4-5configuring with pushbuttons,

4-4connecting to ControlNet, 2-2,

3-7connecting to end device, 1-3installation overview, 3-2overview, 2-1pushbuttons, 4-3related products, P-2run mode, 4-1setting factory defaults, 4-13

L

LED displayscommunication, 6-1ControlNet, 6-1description, 6-3flashing, 6-2interpreting, 6-1railroad, 6-2solid, 6-2status, 6-1

LEDsdisplaying basic parameters, 4-5function, 2-3

N

NAP, P-3, 2-3

Index I–3

NAP connection, 3-5cable requirements, 3-5

network, P-3

network access port. See NAP

network address, P-4, 2-4, 4-6

network architecture, 1-1, 1-3

network update time. See

Nibble Transfer Mode, D-1, D-6

node, P-4

numeric displaysdescription, 6-5interpreting, 6-4

NUR, 1-2maintenance portion, 1-2scheduled data, 1-3scheduled portion, 1-2unscheduled data, 1-3unscheduled portion, 1-2

NUT, P-4

P

parallel port, P-4, 2-3activity indicator, 3-4

parallel port connection, 3-4cable requirements, 3-4cabling, B-5connector, 3-4half duplex, 1-4pinouts, B-5planning, 1-4

PCCC, P-4, 5-1

pinoutsparallel, B-5serial port, B-1

primary connection, 6-1

processor fault, 6-5

product specificationsagency emissions certification,

A-4agency safety certification, A-3ControlNet interface, A-2electrical, A-2environmental, A-3NAP interface, A-2parallel port interface, A-1physical, A-3RS�232C interface, A-1

programmable controllercommunicaitons commands.See PCCC

pushbuttonsconfiguring the KFC module,

4-4DATA, 4-3EXIT, 4-3operation, 4-3VIEW, 4-3

R

raildroad LED, 6-2

RAM fault, 6-5

redundant connection, 6-1

redundant media, 2-2, 3-8

Remote Input/Output. See RIO

repeater, P-4, 1-1

RIO, P-4, 1-1

RS�232, baud rate, 4-6

RS�232 port, 2-3activity indicator, 3-3baud rates, 3-3

RS�232C port. See RS 232 port

run mode, KFC, 4-1

IndexI–4

S

scheduled data, 1-3

segment, P-4, 1-1, 3-8

serial communication, 5-2

serial port, P-5See also RS 232 port

serial port connection, 3-3cable requirements, 3-3cabling, B-1connector, 3-3half duplex, 1-5, 1-6pinouts, B-1planning, 1-5

solid LED, 6-2

Strobe, D-2

subnet, P-5, 1-1

T

tap, P-5

terminator, P-5

troubleshooting, 6-1

trunkline, P-5section, P-5

U

unscheduled data, 1-3

1784�6.5.19�RN1October 1995

Worldwide representation.

Argentina • Australia • Austria • Bahrain • Belgium • Brazil • Bulgaria • Canada • Chile • China, PRC •Colombia • Costa Rica • Croatia • Cyprus • Czech Republic • Denmark • Ecuador • Egypt • El Salvador •Finland • France • Germany • Greece • Guatemala • Honduras • Hong Kong • Hungary • Iceland • India •Indonesia • Ireland • Israel • Italy • Jamaica • Japan • Jordan • Korea • Kuwait • Lebanon • Malaysia •Mexico • Netherlands • New Zealand • Norway • Pakistan • Peru • Philippines • Poland • Portugal •Puerto Rico • Qatar • Romania • Russia-CIS • Saudi Arabia • Singapore • Slovakia • Slovenia • South

Africa, Republic • Spain • Sweden • Switzerland • Taiwan • Thailand • Turkey • United Arab Emirates •United Kingdom • United States • Uruguay • Venezuela • Yugoslavia

Allen�Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1)

414 382�2000 Fax: (1) 414 382�4444

Publication 1770�6.5.20 - June 1997 PN 956119�02Copyright 1997 Allen�Bradley Company, Inc. Printed in Canada

ControlNet User Manual - lvmcc-pubs.rockwellautomation.com

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