10
PWR LED - Blue
Indicates module power
is connected
COM LED - Green
Communication Status
FLT LED - Red
Fault Status
STAT LED - Green
Module Status
PORT I/O LED - Yellow
Left LED = Input A
Right LED = Input B
Status
1. Steady On =
Input is on
2. Flashing On (Input Port)=
Input is pulsing
4.4 LEDs
During start up the LEDs will come on for 3-5 seconds to verify that they are working (bulb test).