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Determine cfm module placement, Key the backplane connector – Rockwell Automation 1771-CFM,D17716.5.99 CONFIGURABLE FLOWMET User Manual

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2–6

Install the CFM Module

Publication 1771Ć6.5.99 - December 1995

Place your module in any slot of the I/O chassis except for the
extreme left slot. This slot is reserved for processors or adapter
modules.

Use of data table

2Ćslot addressing

1Ćslot addressing

1/2Ćslot addressing

Input Image Bits

8

Place the CFM module in any

Place the CFM module in any

Output Image Bits

8

Place the CFM module in any

module group with any 8Ćbit or

Place the CFM module in any

module group with any 8Ćbit

no restrictions

Read Block Words

41 max

module group with any 8Ćbit or

block transfer module.

module group with any 8Ćbit,

16Ćbit or block transfer module.

no restrictions

Write Block Words

60 max

block transfer module.

16Ćbit or block transfer module.

!

ATTENTION: Observe the following precautions
when inserting or removing keys:

insert or remove keys with your fingers

make sure that key placement is correct

Incorrect keying or the use of a tool can result in
damage to the backplane connector and possible
system faults.

Position the keying bands in the backplane connectors to

correspond to the key slots on the CFM module.

keying bands

19808

Place the keying bands:

between 2 and 4

between 6 and 8

The CFM module is slotted in two places on the rear edge of

the circuit board. These slots are intended to mate with the

plastic keying bands supplied with the I/O chassis.

You can change the position of these bands if subsequent system design

and rewiring makes insertion of a different type of module necessary.

I/O chassis

CFM module

I/O chassis

backplane connector

Determine CFM Module

Placement

Key the Backplane

Connector