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Schneider Electric Processor Adapter User Manual

Page 324

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Configuring an M1 CPU with Concept

324

870 USE 101 10 V.2

Establishing Configuration Extension Memory for Peer Cop

Introduction

By default, the Peer Cop capability is disabled. If you want to use Peer Cop to
handle Modbus Plus communications, you need to enable this capability and adjust
the amount of configuration extension memory.

How Much
Memory?

The minimum Peer Cop memory requirement is 20 words; the maximum is 1366
words.

Follow these guidelines for estimating the amount of extension memory you will
need for your Peer Cop database:

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For...

Add...

Up to a maximum of...

Overhead

9 words

--

Global output

5 words

--

Global input

number of words=
number of devices x
(1 + 2 x number of device subentries)

1088 words

Specific output

2 words for every device entry in Peer Cop

128 words

Specific input

2 words for every device entry in Peer Cop

128 words