Using Peer Cop with Modsoft

Devices on the Network

Introduction

This section describes the three CPUs which exchange data over the sample

 

 

Modbus Plus network and the strategy used to assign node addresses.

Devices

 

 

 

 

The three CPUs and their functions are described in the following table:

 

 

 

 

 

 

 

 

MB+ Address

CPU

Function

 

 

 

 

 

 

 

 

 

1

Pentium supervisory computer with

Receives specific input data

 

 

 

 

an AT984 host-based PLC card

and sends global outputs

 

 

 

 

 

 

 

 

 

2

171 CCS 760 00 Momentum M1

Controls I/OBus network

 

 

 

 

Processor Adapter with

and exchanges data with

 

 

 

 

172 PNN 210 22 Modbus Plus

AT984 supervisor

 

 

 

 

Option Adapter

 

 

 

 

 

 

 

 

 

 

3

171 CCS 760 00 Momentum M1

Controls I/OBus network

 

 

 

 

Processor Adapter with

and exchanges data with

 

 

 

 

172 PNN 210 22 Modbus Plus

AT984 supervisor

 

 

 

 

Option Adapter

 

 

 

 

 

 

 

 

Address

 

 

 

 

In this type of architecture, assign the lowest network address (1) to the

Strategy

supervisory computer. When the network initializes, the supervisor will be the first

 

 

device to get the token, and the token rotation table will be built with respect to the

 

 

supervising device.

 

 

 

 

 

 

 

 

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870 USE 101 10 V.2

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Schneider Electric Processor Adapter manual Supervising device, MB+ Address