MR TAPCON 230 AVT Betriebsanleitung

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.

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

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-

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

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

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.

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

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

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