Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD - Manual (Page 15)

Installing the Module
Chapter 2
2-3
Use the plastic keying clips shipped with each I/O chassis, for keying the
I/O slot to accept only this type of module.
ATTENTION: Observe the following precautions when
inserting or removing keying clips:
insert or remove keying clips with your fingers
make sure that keying placement is correct
Incorrect keying or the use of a tool can result in damage to the
backplane connector and possible system faults.
I/O modules are slotted in two places on the rear edge of the circuit board.
The position of the keys on the backplane connector must correspond to
these slots to allow insertion of the module. You can key any
I/O-module-slot connector in an I/O chassis to receive this module. Place
keying clips between the following numbers labeled on the upper
backplane connector (Figure 2.1):
Between 26 and 28
Between 32 and 34
You can change the position of these keys if subsequent system design and
rewiring makes insertion of a different type of module necessary.
Figure 2.1
Keying Positions
Upper Connector
11022ĆI
ATTENTION: Insert or remove
keying bands with your fingers.
I/O chassis
Keying Clips
Keying Positions
Between 26 and 28
Between 32 and 34
Keying the I/O Chassis for
Your Module