NOJA-520

NOJA Power

SCADA Interface Description

User Manual

NOJA-520

Revision History Rev Author Date Comment

Draft Release BOS 6-11-03 Draft release of SCADA Interface Description Manual. First Release BOS 26-05-04 First Release Rev 2 BOS 16-Nov-04 Updated to reflect changes in TELUS S02.04.04 Rev 48. Rev 3 KL 21-02-2007 Add section Modem support. Update modem image. Minor text

changes. Rev 4 BOS 28-05-08 Added IEC60870-5-101 protocol support. Added new features

GMT SCADA time, External Load Reset time. Updated wavecom modem example to include Supreme model. Added Paknet PAD example.

Rev 5 BOS 17-06-09 Added notes clarifying External Load Time operation.

Source: S:\Marketing-500\User Manuals\SCADA Protocols \Original Documents\NOJA-520-05 SCADA Interface Description.doc

This document is copyright and is intended for users and distributors of NOJA Power Switchgear product. It contains information that is the intellectual property of NOJA Power Switchgear and the document, or any part thereof, should not be copied or reproduced in any form without written permission from NOJA Power Switchgear. NOJA Power is a trademark of NOJA Power Switchgear and should not be reproduced or used in any way without written authorisation. NOJA Power Switchgear applies a policy of ongoing development and reserves the right to change product without notice. NOJA Power Switchgear does not accept any responsibility for loss or damage incurred as a result of acting or refraining from action based on information in this User Manual.

NOJA Power Switchgear Pty Ltd 2009 www.nojapower.com.au

NOJA-520

Table Of Contents

1 Introduction .................................................................................................................... 1 2 Communication Ports ..................................................................................................... 2

2.1 RS-232 Port ............................................................................................................ 2 2.2 RS-485 Port ............................................................................................................ 2

2.2.1 MPM-03E RS485 Wiring Diagrams .................................................................. 3 2.2.2 MPM-02E RS485 Wiring Diagrams .................................................................. 4

3 Port Configuration Using TELUS.................................................................................... 5 3.1 Introduction ............................................................................................................. 5 3.2 TELUS Basics......................................................................................................... 5 3.3 RS-232 and RS485 Configuration ........................................................................... 6 3.4 Radio Configuration................................................................................................. 8 3.5 Modem Configuration .............................................................................................. 9

3.5.1 Dialling Characters..........................................................................................10 3.5.2 Modem Support...............................................................................................11

3.6 Turning Off and Resetting External Communications Equipment ...........................12 4 Monitoring the SCADA Port...........................................................................................13 5 Protocol Setup...............................................................................................................14

5.1 SCADA Time Configuration....................................................................................14 5.2 Modbus ..................................................................................................................14 5.3 DNP3 .....................................................................................................................15 5.4 IEC60870-5-101.....................................................................................................16

6 Example Port Configuration for a Wavecom Fastrack and Supreme GSM Modem........17 6.1 Physical Connections .............................................................................................17 6.2 RS-232 Port Settings..............................................................................................18 6.3 Modem Settings .....................................................................................................18

7 Example Port Configuration for a Paknet PAD ..............................................................19 7.1 Physical Connections .............................................................................................19 7.2 Paknet PAD Configuration......................................................................................19 7.3 RS232 Port Settings...............................................................................................20 7.4 Modem Settings .....................................................................................................20

8 Appendix A RS232 and RS485 Wiring Diagram .........................................................21

NOJA-520

1

1 Introduction The OSM 15 and 27 reclosers are supplied with an RC Control Cubicle. Inside the cubicle is the Main Processing Module (MPM) which provides the microprocessor control and operator interface. Two versions of MPM are available:

MPM-02E this module has an RS485 port only. MPM-03E this module has both RS-232 and RS-485 ports.

These ports can be used for connection to SCADA systems using either DNP3, IEC60870-5-101 or MODBUS protocols. Basic port settings can be made directly from the RC cubicle. Some advanced settings, however, can only be configured using NOJA Powers TELUS software. This manual describes the wiring interfaces and setup information required to successfully configure a remote connection using these ports.

This document should be read in conjunction with the user manual supplied with the automatic circuit recloser and the relevant protocol definition document. Protocol documents are available from NOJA Power on request. A reasonable level of SCADA interface knowledge is required including a basic understanding of RS-232, RS-485 and communication protocols.

Figure 1: RC Control Cubicle Physical Layout

NOJA-520

2

2 Communication Ports 2.1 RS-232 Port The RS-232 port consists of a DB9M connector located behind the escutcheon panel inside the RC Cubicle. The RS-232 port is only available in MPM version 3E or higher. Pinout configuration is shown below.

2.2 RS-485 Port The RS-485 port consists of a Wago connector located underneath the I/O modules inside the RC cubicle. Terminal designations are shown below.

Note: An RS-485 to RS232/485 repeater (as appropriate) must be installed where wiring exits the cubicle to provide impulse immunity for the RC electronics.

The RS-485 port can be wired for half-duplex or full-duplex operation. The wiring diagram used depends on which model MPM is used in the RC Cubicle. The MPM version can be checked from the MMI panel by navigating through the menu structure as shown below:

NOJA-520

3

2.2.1 MPM-03E RS485 Wiring Diagrams

NOJA-520

4

2.2.2 MPM-02E RS485 Wiring Diagrams

NOJA-520

5

3 Port Configuration Using TELUS 3.1 Introduction All RS-232 and RS-485 settings can be configured on the RC cubicle using TELUS. Settings are made offline then transferred into the device by checking the SCADA box before downloading the settings into the cubicle. Refer to the TELUS help file for more information on connecting to devices using this software.

3.2 TELUS Basics TELUS connects to the RC Cubicle via an RS-232 connection located on the MPM panel at the front of the cubicle. When TELUS is first installed the default password is +++. Make sure the baud rate matches the RC Cubicle settings and that you are using the correct communications port. TELUS communications settings are changed under Tools->Options on the menu bar.

Note: TELUS default settings are for 19,200 bps on com port 1. The RC cubicle default speed is also 19,200. The default configuration should work without any changes.

Open the correct device from the device list box then connect to the RC Cubicle by clicking the Switch To On-Line Mode button on the toolbar:

To upload existing settings into TELUS from the device click the Upload Settings From Device button:

To download new settings into the device click the Download Settings Into Device button:

To disconnect from the device click the Switch To Off-line Mode button:

NOJA-520

6

3.3 RS-232 and RS485 Configuration The RS-232 and RS-485 ports are configured from the SCADA Settings dialog. This is accessed by clicking the SCADA button on the Device dialog box.

To activate the port select RS-232 or RS-485 from the Port type drop-down box. If RS-485 is selected the following fields are unavailable:

RTS Mode RTS On Level DTR Mode DTR On Level CTS Mode DSR Mode DCD Mode

The following settings can be modified:

Item Description Range Duplex Type Half or full duplex communication. Half, Full.

RTS Mode

In Flow Control mode this signal is used to indicate DCE. High signal indicates ready to receive data, low signal indicates not ready.

In Control PTT mode this signal is used to key the radio transmitter. A high signal keys the transmitter, a low signal turns it off.

Ignore Flow Control Control PTT

RTS On Level Sets which polarity is used to determine whether RTS is ON.

High Low

DTR Mode

In Control mode DTR is asserted when ready to begin communication. When DTR goes low the modem hangs up.

Ignore mode is used to disable DTR.

Ignore Control

NOJA-520

7

Item Description Range

DTR On Level Sets which polarity is used to determine whether DTR is ON.

High Low

Parity Sets the parity method. None, Even, Odd.

Baud Rate Port communication speed in bits per second. 300, 600, 1200, 2400, 4800, 9600, 19200. CTS Mode Clear To Send setting. Ignore, Monitor High, Monitor Low. DSR Mode Data Set Ready setting. Ignore, Monitor High, Monitor Low. DCD Mode Data Carrier Detect setting. Ignore, Monitor High Monitor Low.

DTR Low Time, ms

Data Terminal Ready Low Time.

This is the minimum time that the DTR signal must be held low before the modem will respond to a DTR high.

50 5000ms

Tx Delay, ms

Transmit Delay.

This is the minimum time delay, in ms, after receiving a character through the physical communication port, before a character will be transmitted in response.

0 5000ms

DCD Fall Time, ms

Data Carrier Detect Fall Time.

This sets the period of time to wait after a loss of carrier is detected before sending the hang up command to the modem or assuming the session has ended.

0 25500ms

Char Timeout, chars

The maximum allowable time, in length of characters, between received bytes in a data link frame.

If this time is exceeded then the current frame is rejected and scanning for the start of another frame is immediately started.

0 - 255

Pre Tx Time, ms Pre Transmission Time.

The interval between sending the last character of data and sending RTS low.

0 5000ms

Post Tx Time, ms Post Transmission Time.

The interval between asserting RTS and starting to send data.

0 5000ms

Allows the addition of idle times and random delays to implement collision avoidance.

Min Idle Time, ms 0 120000ms Collision Avoidance

Max Rndm Delay, ms 0 120000ms

Inactivity Time, s The number of seconds to wait without any transmission activity on the line before showing the SCADA port as disconnected.

0 600s

Modem is Powered from External Load

When this setting is On and the External Load is Off, the MPM will not try to use the communication device. When this setting is Off the MPM will not check the External Load status before making a connection.

On, Off.

NOJA-520

8

3.4 Radio Configuration To configure radio settings, select Radio from the Comm Device drop-down box on the SCADA Settings dialog box and select the Radio tab.

If the radio preamble checkbox is ticked characters will be transmitted prior to sending any data. The following radio preamble settings can be set:

Item Description Range Char The character to be sent. 0x00 to 0xFF

Repeat The number of times the character will be repeated. 0 25

Last Char The final char to be sent to indicate the end of the preamble. 0x00 to 0xFF

NOJA-520

9

3.5 Modem Configuration To configure modem settings, select Modem from the Comm device drop-down box on the SCADA Settings dialog box and select the Modem settings tab.

The following settings can be configured:

Item Description Range

Modem is used with Leased Line

Check this box if the modem is to use a leased line connection. Checking this box will disable the Hang Up Inactivity Time setting.

Yes, No.

Dial Out Check this box if the modem will be dialling a number when making a connection. Checking this box will enable the Pre Dial String and Dial Numbers: settings.

Yes, No.

Init String Modem Initialization String. This field takes AT modem commands. Up to 38 characters

Pre-Dial String Pre-Dial String. See section 3.5.1 for a list of valid dialling characters. This field takes AT modem commands.

Up to 18 characters

Dial Numbers Up to five dial-out numbers can be entered. See section 3.5.1 for a list of valid dialling characters. Up to 18 characters

Autodial Interval, s Interval between failure to connect to one number before dialling the next in the list. 0 - 255

Connection Timeout, s The length of time the cubicle will wait after dialling a number for a connection to be established. 0 - 255

Response Time, s Determines how long to wait for a response from the modem after sending it a control command. 0 - 255

NOJA-520

10

Item Description Range

Maximum Call Duration, min

Sets a maximum time for a call in minutes. This limits the length of a call to reduce call costs in situations where constant generation of events keeps the modem connected. If set to zero the timer is disabled.

Note: This feature is only available with MPM software version S02.03.05 Build 6069 and later.

0 - 60

Hang Up Command Command to make the modem hang up. This is only used if DTR is set to Ignore. This field takes AT modem commands.

Up to 8 characters

Off Hook Command Command to make the modem go off-hook. This is sent to the modem immediately before the pre-dial string. This field takes AT modem commands.

Up to 8 characters

Auto Answer On Command to enable auto-answer on the modem. This field takes AT modem commands. Up to 8 characters

Auto Answer Off Command to disable auto-answer on the modem. This field takes AT modem commands. Up to 8 characters

NOTE: From MPM software version S02.03.04 Build 3519 and onwards, the AT must be entered as part of an AT string. Previous versions did not require AT to be entered. Please recheck your AT commands if you are upgrading from an earlier software version.

3.5.1 Dialling Characters The following characters can be used in the pre-dial string and dial numbers:

Character Description 0-9 # *

Dialling digits.

P Pulse dialling. T Tone Dialling , (comma) Pause. Used to set a pause between digits. ; (semicolon) Return to command state after dialling. ! Hook flash. @ Wait for 5 seconds before proceeding. R Reverse handshake (go on-line in auto-answer mode). W Waits for second dial tone.

NOJA-520

11

3.5.2 Modem Support

Outgoing calls A typical process handling outgoing calls is as follows:

1. MPM sends the Initialization string (Init String). If necessary, MPM will use flow control or the break out command +++ to enter command mode before sending the string.

2. MPM configures auto answer Auto Answer On. 3. MPM sends Off-hook command Off Hook Command. Not required if using GSM-

modem (leave empty in MPM SCADA settings). 4. MPM sends the dialling commands Pre-Dial String and dials the first phone

number in the list. 5. After communication between modems has been established, the MPM monitors

the DCD line to determine the connection state. 6. If the call is not answered or fails, MPM dials the next configured number, cycling

to the top of the list at the end. If a single number is configured, MPM redials that number. The retry time out is specified by Autodial Interval.

7. After a connection is established and no data transfer takes place for the duration of Inactivity Time or the Maximum Call Duration timer expires (see Port settings), the MPM issues a hang up command Hang Up Command.

8. Communication process is completed.

Note 1: The MPM resends the initialization string to the modem every 30 minutes while no communication is taking place.

Note 2: The initialisation string is sent to the modem when it is powered up if the MPM detects the DSR line has been asserted. Many modems do not use DSR by default. In this case the initialisation string will be sent when the 30 minute timer has expired (see note 1). If it is required to send the initialisation string on power up and DSR is not enabled by default DSR can usually be turned on by using the AT command &S0. For example, AT&S0&W will turn DSR on and writes the command into the modems non-volatile memory.

Incoming calls Modem handling for incoming calls is implemented in the MPM as follows:

If the MPM is configured to ignore DCD line, the MPM waits for a CONNECT string from the modem.

If the MPM is configured to monitor DCD line, the MPM waits for DCD to be asserted before establishing a connection.

NOJA-520

12

3.6 Turning Off and Resetting External Communications Equipment If communications equipment such as radios and modems are powered by the RC cubicle external load supply, they can be turned off on loss of auxiliary power after a set time to save battery power.

The external load power source connections are on pins 1 and 2 of the RS-485 connector located inside the RC cubicle. See section 2.2.

The external load time is set from the System Settings dialog box.

To set the external load time, enter a value in minutes from 1 720 into the External Load Time (T_ext), min text box under the UPS Settings section.

The external load can also be cycled off and back on again at regular intervals if the connected equipment requires a regular reset.

To set the reset time enter a value in hours from 0 720 into the External Load Reset Time, hrs text box at the bottom of the UPS Settings section.

Note: External Load Time will only work if a Modem or Radio is configured. It will not work when using a direct connection.

Note: The Modem is powered from external load setting must be enabled for External Load Time to work.

NOJA-520

13

4 Monitoring the SCADA Port A SCADA port monitoring screen can be viewed on the MPM under System Status:

This screen can be used to monitor the pin status, number of bytes received and transmitted, hangup the connection and conduct tests.

NOJA-520

14

5 Protocol Setup The OSM recloser is supplied with Modbus, DNP3 and IEC60870-5-101 communications protocols.

The DNP3 and IEC protocols are supplied in separate MPM firmware versions. MODBUS is available in all cases. The protocol variant is normally specified when ordering the OSM. The firmware can be upgraded to change between IEC60870-5-101 or DNP3 if required.

Protocols are described in detail in the relevant protocol definition document. Protocol documents are available from NOJA Power on request. Please read this section in conjunction with the relevant document:

NOJA-519 - DNP3 Protocol Implementation NOJA-546 - IEC60870-5-101 Protocol Implementation NOJA-508 Modbus Protocol Implementation

5.1 SCADA Time Configuration Time stamps within the SCADA protocol can be reported using Local Time or Greenwich Mean Time (GMT) time with an offset to account for the time zone. This will allow the MPM to display the local time while having GMT time reported back to the SCADA master.

SCADA time is set using the drop down box at the bottom of the SCADA settings screen. The default setting is Local. When GMT is selected the Zone hours box is enabled allowing the user to select their time zone as an offset of GMT time.

Note: This feature is only available with MPM software version S02.03.05 Build 6069 and later.

5.2 Modbus To activate the Modbus protocol select Modbus from the Protocol Type drop-down box.

The only setting available for modification is the network address identification of the device. Enter the address number into the Address text box under the MODBUS Settings section.

NOJA-520

15

5.3 DNP3 To activate the DNP3 protocol select DNP3 from the Protocol Type drop-down box.

TELUS allows the user to modify a wide range of settings including the actual DNP3 mapping using a built in tool. To configure DNP3 click the DNP3 Settings button.

Link Layer, Application Layer and Unsolicited Response settings are configured on the General tab. These settings are described in the DNP3 protocol implementation manual.

DNP3 mappings are configured on all the other tabs. Refer to the DNP3 protocol implementation manual for more information.

The Reset to default button restores all DNP3 settings to default.

The Test button checks all the DNP3 mappings on each tab (except for General) and reports any conflicts.

NOJA-520

16

5.4 IEC60870-5-101 To activate the IEC60870-5-101 protocol select IEC from the Protocol Type drop-down box.

TELUS allows the user to modify a wide range of settings including the actual point mapping using a built in tool. To configure IEC60870-5-101 click the IEC Settings button.

Link Layer and Application Layer settings are configured on the General settings tab. These settings are described in the IEC60870-5-101 protocol implementation manual.

Point mappings are configured on all the other tabs. Refer to the IEC60870-5-101 protocol implementation manual for more information.

The Reset to default button restores all settings to default.

The Test button checks all the point mappings on each tab (except for General) and reports any conflicts.

Note: The IEC60870-5-101 protocol is not available in the same MPM firmware as the DNP3 protocol. If IEC60870-5-101 is required then a firmware upgrade is required.

NOJA-520

17

6 Example Port Configuration for a Wavecom Fastrack and Supreme GSM Modem

6.1 Physical Connections The Wavecom modem is fitted with a 15 pin Sub D female connector. A cable must be made to connect this to the RS-232 port DB9 male plug located inside the RC cubicle as shown in the table below:

Wavecom modem Recloser

Signal description Pin number Pin number Signal description DCD 1 1 DCD RX 6 2 RX TX 2 3 TX DTR 8 4 DTR GND 9 5 GND DSR 7 6 DSR RTS 12 7 RTS CTS 11 8 CTS RI 13 9 RI

In this example we will be powering the modem from the External Load power connection located on the RS-485 port connector inside the cubicle. Using this power source permits configuration of the time the modem continues to operate after loss of auxiliary power. See section 3.6.

Wavecom Micro-Fit 3.0 Connector

Recloser XS1 RS-485 Connector

Signal description Pin number Pin number Signal description V+ Battery 1 1 +12V for RTU Ground 2 2 Ground

An antenna must be connected to the SMA connector on the Fastrack modem from an antenna mounted external to the RC cubicle.

Note 1: The Modem will require a SIM card before it will work.

Note 2: The SIM card will need to have a non-transparent data number for 9600 baud. This is not the same as a voice number. Check the type of number with your telecommunications supplier if connection difficulties are experienced.

Note 3: The Wavecom Supreme Modem has a new feature which powers down the RS232 serial port to save power. This must be disabled so the MPM can connect and initialise the modem correctly. Connect to the modem using a computer and terminal program, then use the AT command AT+WASR=0 to disable auto shutdown mode on the RS232 port.

NOJA-520

18

6.2 RS-232 Port Settings Use TELUS to configure the following settings as described in section 3.3.

Port Type: RS232 Parity: None Duplex Type: Full Baud Rate: 9600 RTS Mode: Flow Control RTS On Level: High CTS Mode: Monitor High DTR Mode: Control DTR On Level: High DSR Mode: Ignore DCD Mode: Monitor High DCD fall time: 500 ms Tx Delay: 20 ms Cubicle RC/TEL-01E(S) - 70 Char Time Out: 2 Pre Tx Time: 50 Post Tx Time: 50 Collision Avoidance: Unchecked Inactivity time: 10s (depending on speed of SCADA response) Modem is powered from external load: Unchecked

6.3 Modem Settings Use TELUS to configure the following settings as described in section 3.5.

Dial Out Yes. (If you want the recloser to make calls to a master station). Pre-Dial String ATD Dial numbers: 12345678901 change this to the actual number Autodial Interval: 5 s. Connection Timeout: 60 s Response Time: 15 s. (in some cases modem may have a slow response) Hang Up Command: ATH. Off Hook Command: Leave blank. Auto Answer On: ATS0=2 Auto Answer Off: Leave Blank.

NOJA-520

19

7 Example Port Configuration for a Paknet PAD

7.1 Physical Connections

The Paknet PAD is supplied with a 25 way D type Comms connection. A 25 pin to 9 pin null modem cable will be required to connect the Paknet PAD to the MPM SCADA port.

7.2 Paknet PAD Configuration

The Paknet PAD is supplied with default communications settings as follows:

Baud Rate: 4800 Data Bits: 7 Parity: Even Stop Bits: 1 Handshaking: None

In order to configure the Paknet for the required communications settings a connection will have to be established with a terminal using the above settings. The settings can then be changed to match those used in the MPM configuration.

For example, to change the Paknet PAD Port configuration to 2400 baud, 8 data bits, no parity and set the port to accept AT commands, issue the following command using a terminal:

SET 0:8, 3:0, 4:1, 11:12, 21:2

The Paknet PAD can now be connected to the RS232 SCADA port inside the RC Control Cubicle.

Note 1: Please refer to the Paknet PAD manual for a detailed description of settings for this device. The example below may not suit your application.

Note 2: The Paknet PAD will need to be registered on the providers network. Refer to the Paknet PAD manual for further information.

NOJA-520

20

7.3 RS232 Port Settings Use TELUS to configure the following settings as described in section 3.3.

Port Type: RS232 Parity: None Duplex Type: Half Baud Rate: 2400 RTS Mode: Flow Control RTS On Level: High CTS Mode: Ignore DTR Mode: Ignore DTR On Level: High DSR Mode: Ignore DCD Mode: Ignore DCD fall time: 700 ms Tx Delay: 20 ms Cubicle RC/TEL-01E(S) - 70 Char Time Out: 2 Pre Tx Time: 50 Post Tx Time: 50 Collision Avoidance: Unchecked Inactivity time: 25s (depending on speed of SCADA response) Modem is powered from external load: Unchecked

7.4 Modem Settings Use TELUS to configure the following settings as described in section 3.5.

Dial Out Yes. (If you want the recloser to make calls to a master station). Pre-Dial String Leave Blank Dial numbers: 12345678901 change this to the actual number Autodial Interval: 25 s. Connection Timeout: 60 s Response Time: 15 s. (in some cases modem may have a slow response) Hang Up Command: ATH. Off Hook Command: Leave Blank Auto Answer On: Leave Blank Auto Answer Off: Leave Blank

NOJA-520

21

8 Appendix A RS232 and RS485 Wiring Diagram