Using Touchscreen PLC

Using Modbus Touch Screen PLCs with Remote I/O Modules

Maria Lemone, Sales Manager ICP DAS USA, Inc.

[email protected] 1-310-517-9888 x105

Making Data Acquisition Easy

Modbus Touch Screen PLC’s & I/O | Maria Lemone | 2016

Robert Murao, Tech Support Engr ICP DAS USA, Inc.

[email protected] 1-310-517-9888 x111

www.icpdas-usa.com

www.icpdas-usa.com 1-310-517-9888 ext 105

Using Modbus Touch Screen PLC’s with Remote I/O


Introduction

Product & Technology Overview

• Modbus RTU and Modbus TCP Protocols

• Data Acquisition & Data Logging Technology

• Touch Screen PLC’s & Development Environment

• Ladder Logic & C Language Programming

Live Demonstration

Modbus Touch Screen PLC’s & I/O | Maria Lemone | 2016 www.icpdas-usa.com 1-310-517-9888 ext 105


ICP DAS USA • Products are used Worldwide

• ICP DAS established in 1993, ICP DAS USA in 2001

• Manufacture our Products in Taiwan

• RoHS Compliant, ISO-9001:2008


Background on Modbus


• Modbus is a Serial Based Communications Protocol

• Industrial communications for instrumentation, control and data acquisition devices

• Originally published by Modicon (now Schneider Electric) in 1979 for use with its Programmable Logic Controllers


Data Acquisition


Data acquisition (abbreviated DAQ) is the process of sampling of real world physical conditions and conversion of the resulting samples into digital numeric values that can be manipulated by a computer.

Temp.

Digital Output


Digital vs Analog


Digital Inputs: Detects if a voltage is above or below a specific threshold. Digital Outputs: Controls a voltage with a computer or controller Analog Inputs: Variable voltage, current, temperature or pressure measurements Analog Outputs: Variable voltage or current electrical signals


Modbus RTU Data Acquisition


• Up to 255 Devices in One Network • Developed with Industrial Applications in Mind • Openly Published and Royalty-Free • Easy to Deploy and Maintain • Communicates up to 4000 Feet without a Repeater


Modbus Function Codes


Read Write Reset Multiple Outputs

Report Slave

ID


Modbus Registers


Analog Output Value

Analog Output Read Back

Safe Output Value

Power On Output Value

Watchdog Timeout

Watchdog Timeout

Reset Status



Use RS-485 based DCON &

Modbus RTU protocols

Labview, DasyLab, DDE,

dll, OPC and OCX drivers

Communicates to PLC, DCS, PC or

many other controllers

70 + selections of analog, digital,

and I/O specialty modules

Auto tunes data rate and data

format

tM-TH8

Modbus Touch Screen PLC’s & I/O | Maria Lemone | 2016

Modbus RTU I/O Solutions: M-7000 & tM Series

www.icpdas-usa.com 1-310-517-9888 ext 105

http://www.icpdas-usa.com/remoteiomodules.html?r=maria

Using Modbus RTU DAQ


• Link the M-7000 and host PC with I-7561 Serial to USB or tDS-715 Serial to Ethernet Converter

• Click the Search on DCON Utility main menu to scan for devices on the RS-485 network


Po

we

r &

Da

ta

Modbus TCP

Eth

ern

et

Ethernet / Modbus TCP

Modbus TCP Ethernet I/O Solutions


Eth

ern

et

Modbus TCP Eth

ern

et

Modbus TCP

tPET-A4

ET-7255

Power & Data

PET-7060 or WISE-7167

ET-7217 ET-7215

tET-C4

Eth

ern

et

Modbus T

CP

Ethernet / Modbus TCP

Modbus TCP protocol

Digital, Relay, Current, Voltage, RTD, Thermistor, Thermocouple I/O

Works with PC, PLC, DCS, TouchPads and many other Controllers

NS-205PSE


http://www.icpdas-usa.com/modbustcp_dual_ethernet_io_modules.html?r=maria

http://www.icpdas-usa.com/search-result.php?searchproduct=pse&?r=maria

http://www.icpdas-usa.com/search-result.php?searchproduct=poe&?r=maria



http://www.icpdas-usa.com/indusoft_scada_hmi_for_desktop_server.html?r=maria

Using Modbus TCP DAQ


• Link the ET-7000 and host PC

• Click the Search on MiniOS7 Utility’s main menu to scan for devices on the Ethernet network


Connect by Web Browser


• Enter in Configured IP Address

• Input User Name & Password

• Web HMI allows you to configure the ET-7017


MicroTouch Annunciator System


Nurse Call Alarms

Door Alarm Display

Emergency Call

Systems

www.icpdas-usa.com 1-310-517-9888 ext 105 Modbus Touch Screen PLC’s & I/O | Maria Lemone | 2016

WF-2000 Series


Wireless Modbus Data Acquisition

Zigbee Modbus RTU

Wi-Fi Modbus

TCP


http://www.icpdas-usa.com/zigbeealliancetable.html?r=maria

http://www.icpdas-usa.com/wi_fi_data_acquisition.html?r=maria

Zigbee Wireless Network


Flexible Topologies

Cluster Tree

Star

Mesh

Coordinator establishes communication Path

Slaves are Repeaters


Zigbee Wireless I/O in Factory Automation


Counters

Conveyor Control

Weight

Temperature Monitoring


Modbus TCP vs Modbus RTU


• Modbus TCP is over Ethernet networks • Modbus RTU is over Serial networks • Networks are Not the Same • Can use a Modbus RTU to Modbus TCP Gateway like tGW-715

to Combine Networks

Modbus Gateway


Data Logging Technology


• Data Logging: The process of using a computer to collect data through sensors, analyze the data and save and output the results of the collection and analysis.

• Data logs in remote locations can be retrieved in different ways like via FTP and email.


Free EZ Data Logger Software


Trends

Gauges

Bar Graphs

Layout

Supports DCON, Modbus RTU, &

Modbus TCP Protocols

Trending Information

Data Logging Display Data Supports VB

Script


http://www.icpdas-usa.com/ez_data_logger.html?r=maria

WF-2000 Series Making Data Acquisition Easy

Modbus Touch Screen PLC’s

2.8”

3.5”

4.3”

7.3”

2.8, 3.5, 4.3, 7.3”

Free Development Environment

C Language & Ladder Logic Programmable

PoE Options

Demo Programs

Keypad Remotes


http://www.icpdas-usa.com/touchpad-controllers-table.html?r=maria










Touch Screen PLC’s



Mounting


HMIWorks Development Environment




Drag & Drop Design



Ladder Logic

• Basis of most control functions

• Logical functions: AND, OR, and exclusive OR (XOR)

• Logic functions are implemented by developing a ladder diagram.

• Function Blocks


Types of Variables



Contact



Ladder Rungs & Rails



Jump, Label, Return




Programming with Ladder Logic

• New Project > Ladder Programming Type > Add New Virtual Tag

• Pointer

• F2: Left Contact

• F3: Right Contact

• F4: Parallel Contact

• F5: Coil

• F6: Left Function Block

• F7: Right Function Block

• F8: Parallel FB

• Jump



C Language

• Flexible & Portable

• Functions & Recursion

• Libraries (Including Math)

• Case Statements

• Condition Statements

• For and While Loops

• Data Structures

• Variables



Operators

• Arithmetic: +, -, *, /, %

• Relational: >, >=, <, <=

• Equality: ==, !=

• Logical: && (and), || (or

• Increment and Decrement: ++, --


Example: if (x !=y) && (c==b) { a=c + d*b; a++; }


Loop Statements

• While (condition) {statements} While a condition is true, execute statements

• For (initialization; condition; increment) {statements} If true, execute statements increment and repeat until not true


Examples: while(1); // loop forever for (i=0; i<3; i++) { printf(“hello world”); } //print hello world 3 times


If and Switch Statements

• If (condition1) {statements1} else if (condition2) {statements2} else {statementsn}


• Switch (expression){ case 1: statements case 2: statements default: statements }

ICP DAS USA Benefits

• Customized Products & OEM Capability • Low lead times, cost effective design solutions, and

personalized care • Competitive price/performance ratio, while offering

the latest solutions for current industrial trends. • We are able to provide hardware and software

solutions • ICP DAS USA provides a great variety of products with

modular and universal solutions for your applications and projects.



Using Touchscreen PLC

Software

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