15.4 Digital
Outputs
Problem
Action
Output LED comes on and
output is on, but the field
device is not activated.
Check the field wiring.
Check the external device.
Output LED and output are
on when they should be off.
Check that the output is not forced on.
Output LED and output are
off when they should be on.
Check that the output is not forced off.
The LED is dim.
This normal operation when the controller is in
sleep mode, or when the LEDs are turned off.
Check the controller digital I/Os are in the register
assignment.
15.5 Counter
Inputs
Problem
Action
Input LED does not come
on when input signal is
applied.
Check the input signal at the termination block. It
should be at least 50% of the counter input range.
Check the LEDs are turned on.
SCADAPack 350 Hardware Manual
February 14, 2007
56
