Rockwell Automation 1771-IFF/A,D17716.5.116 FAST ANALOG INPUT MODULE - Manual (Page 20)

2–4 Troubleshooting Your Input Module
Publication 1771Ć6.5.116 - July 1996
The following allows you to run a check on module operation, and
isolate a fault either to the module or external to the module.
Connect the Module in a Simple Test System
Set up a 1771 I/O chassis with a PLC-5 processor in the leftmost
slot.
5
OFF
ON
OFF
ON
6
OFF
OFF
ON
ON
Switches
Addressing
Pressed in
at top ON (closed)
Pressed in
at top OFF (open)
Always Off
Always Off
2Ćslot
1Ćslot
1
1/2 slot 1,2
Not allowed
Off
Off
Set the chassis backplane switch 5 to ON. All other backplane switches to Off.
This sets the chassis to 1Ćslot addressing.
Note: Check the processor screen to verify that the processor is set for 1Ćslot addressing.
1
Place the module in the card guides on the top and bottom of the first slot next to the
processor. These slots guide the 1771ĆIFF/A module into position.
Important: Apply firm even pressure on the module to seat it into its backplane connector.
Swing the chassis locking bar down into place to secure
the modules. Make sure the locking pins engage.
1771ĆA1B, ĆA2B, ĆA3B, ĆA3B1, ĆA4B I/O chassis 1771ĆA1B, ĆA2B, ĆA3B1, ĆA4B Series B I/O chassis
locking tab
card guides
IFF module
IFF module
19809
card guides
locking bar
locking bar pin
Snap the chassis latch over
the top of the module to secure it.
2
After inserting the module into the slot, apply power to the chassis.
PLCĆ5 Processor
PLCĆ5 Processor
CheckingModule
Operation