Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 103)

Starting Your Processor
Chapter 5
5-21
5. If the instruction does not intensify, then:
repeat the test procedure
check your input module
call your Allen-Bradley sales engineer or distributor
6. If the indicator does not light, check:
power source for the input device
wiring from the input device
connection to the field wiring arm’s terminal
input
device
verify the address of the input device
input
terminal
Using The 1771ĆSIM
The Switch/Indicator module is compatible with any 1771 I/O chassis. It
has 8 switches to simulate 8 inputs and it has 8 LED’s to indicate when an
addressed output is active. It requires no external power. See publication
1771-2.106 for more information.