beautypg.com

Defining the link and accessing a node – Schneider Electric Processor Adapter User Manual

Page 265

background image

Using Peer Cop with Modsoft

870 USE 101 10 V.2

265

Defining the Link and Accessing a Node

Overview

When you reach the default Peer Cop screen, a popup menu asks you to define a
link and access a node.

What Is a Link?

The

link is the Modbus Plus network on which the CPU resides.

The only valid link value for a Momentum M1 CPU is 1. An M1 can function only on
one Modbus Plus network–multiple Modbus Plus links are not supported.

What Is a Node?

The

node is the Modbus Plus address of one of the I/O devices on the network.

A valid node value in our example is any number in the range 2...5. For our
example, we will first access the170 ADI 340 00 16-point input module at Modbus
Plus address 2.

Continued on next page

Note: Address 1, the network address of the CPU itself, is not a valid node to

access since the CPU does not need to access itself over the network.