MR TAPCON 230 AVT Owner's manual

Laststufenschalter VACUTAP®VR I HD
Betriebsanleitung
Voltage Regulator TAPCON®230 AVT
Supplement
Device Profile Document MODBUS

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Die Originalbetriebsanleitung wurde in deutscher Sprache erstellt.

© Maschinenfabrik Reinhausen 2010 2224208/00 EN TAPCON® 230 AVT 3
Table of Contents
1 General .......................................................................................... 5
1.1 Introduction ...............................................................................................5
1.2 Abbreviations used ...................................................................................5
2 Communication Interface Ports .................................................. 7
2.1 Settings on the voltage regulator ..............................................................8
2.1.1 RS-232 ................................................................................................................. 8
2.1.2 RS-485 ................................................................................................................. 9
2.1.3 Ethernet (RJ45) .................................................................................................... 9
2.1.4 Optical Fiber ....................................................................................................... 10
3 Protocol specification ................................................................ 11
3.1 Function codes........................................................................................11
3.2 Exception codes......................................................................................11
3.3 MODBUS adressing model.....................................................................12
4 Device Data Points ..................................................................... 13
4.1 Coils ........................................................................................................13
4.2 Input Status.............................................................................................15
4.3 Holding Registers....................................................................................18
4.4 Input Registers........................................................................................19

© Maschinenfabrik Reinhausen 2010 2224208/00 EN TAPCON® 230 AVT 5
1 General
1.1 Introduction
This implementation of the MODBUS® communication protocol (ASCII and
RTU mode) in the TAPCON® 230 AVT is based on the Modicon MODBUS1Pro-
tocol Reference Guide, PI-MBUS-300 Rev. J, copyright 1996 by Modicon Inc.
This document details the implementation subset available in a TAPCON® 230
AVT voltage controller equipped with the optional communication interface
module (CI-module).
Refer to the documentation of TAPCON® 230 AVT available at Maschinenfabrik
Reinhausen or www.reinhausen.com for additional information on the
TAPCON® 230 AVT voltage controller.
1.2 Abbreviations used
Table 1 Abbreviations used
1 MODBUS is registered trademark of Modicon, Inc.
Abbreviation Definition
ASCII American Standard Code for Information Interchange
IP Internet Protocol
LSW Least Significant Word
MSW Most Significant Word
RTU Remote Terminal Unit
SCADA Supervisory Control and Data Acquisition

© Maschinenfabrik Reinhausen 2010 2224208/00 EN TAPCON® 230 AVT 7
2 Communication Interface Ports
For data transfer via MODBUS protocol the voltage regulator provides the foll-
wing communication interface ports:
Ethernet Optical Fiber RS 485 RS 232
Figure 1 Communication Interface Ports
RS-232
9 pin female SUB-D connector
Pin 2: TxD
Pin 3: RxD
Pin 5: GND
RS-485
3 pin male connector from Phönix MSTB 2,5/3-GF-5
Pin 1: GND (100 Ohm ground resistance)
Pin 2: B (inverting)
Pin 3: A (non inverting)
Polarity:
A > B for more than 200 mV equates to 1
B < A for more than 200 mV equates to 0
A disabled communication line equates to 1
The Startbit is labled with 0
The recommended terminating resistor is 120 Ohm.
Ethernet
(RJ45)
Optional Ethernet or Modem interface
Pin 1: Tx+
Pin 2: Tx-
Pin 3: Rx+
Pin 6: Rx-
Optical Fiber FH-ST connector (850nm oder 660nm)
F-SMA connector (850nm oder 660nm)
Table 2 Communication Interface ports

TAPCON® 230 AVT 2224208/00 EN © Maschinenfabrik Reinhausen 2010
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2.1 Settings on the voltage regulator
Getting started with MODBUS communication some parameters must be set on
the TAPCON® 230 AVT.
MENU-key > Configuration > Continue > Continue > Comm. Interface
2.1.1 RS-232
Communication protocol MODBUS ASCII or MODBUS RTU
Communication port RS-232
Communication baud rate 9600/19200/38400/57600 Baud
IP address Not used
TCP port Not used
Light On/Off Mode Not used
Local SCADA address 1..255 (0 = broadcast)
SCADA master address Not used for MODBUS
Unsolicited messages Not used for MODBUS
Unsolicited retries Not used for MODBUS
Application confirm timeout Not used for MODBUS
RS-485 transmit delay time Not used
For further instructions on setting the configuration parameters please refer to
the user manual of the TAPCON® 230 AVT voltage regulator.

© Maschinenfabrik Reinhausen 2010 2224208/00 EN TAPCON® 230 AVT 9
2.1.2 RS-485
Communication protocol MODBUS ASCII or MODBUS RTU
Communication port RS-485
Communication baud rate 9600/19200/38400/57600 Baud
IP address Not used
TCP port Not used
Light On/Off Mode Not used
Local SCADA address 1..255 (0 = broadcast)
SCADA master address Not used for MODBUS
Unsolicited messages Not used for MODBUS
Unsolicited retries Not used for MODBUS
Application confirm timeout Not used for MODBUS
RS-485 transmit delay time 0..254 ms*
*) E.g. 2 ms to compensate the reaction time needed by the RS-485/RS-232
converter to switch from send mode to receive mode.
2.1.3 Ethernet (RJ45)
Communication protocol MODBUS RTU over tCP
Communication port RJ45
Communication baud rate fixed 19200 Baud
IP address 0.0.0.0
TCP port 1234
Light On/Off Mode Not used
Local SCADA address 1..255 (0 = broadcast)
SCADA master address Not used for MODBUS
Unsolicited messages Not used for MODBUS
Unsolicited retries Not used for MODBUS
Application confirm timeout Not used for MODBUS
RS-485 transmit delay time Not used
Note: This is not MODBUS TCP!
Simply put, this is a Modbus RTU message transmitted with a TCP/IP wrapper
and sent over a network instead of serial lines.

TAPCON® 230 AVT 2224208/00 EN © Maschinenfabrik Reinhausen 2010
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2.1.4 Optical Fiber
Communication protocol MODBUS ASCII or MODBUS RTU
Communication port Optical Fiber
Communication baud rate 9600/19200/38400/57600 Baud
IP address Not used
TCP port Not used
Light On/Off Mode ON means light ON at 1
OFF means light OFF at 1
Local SCADA address 1..255 (0 = broadcast)
SCADA master address Not used for MODBUS
Unsolicited messages Not used for MODBUS
Unsolicited retries Not used for MODBUS
Application confirm timeout Not used for MODBUS
RS-485 transmit delay time Not used