202 ControlEdge HC900 Process & Safety Controller User and Installation Manual Revision 10
May 2019
10.5. I/O Module Indicators
Figure 103 – I/O Module LED indicators
Table 32 – LED Indications on I/O Module
Off
Solid Red
Blinking Red
Blinking Yellow
Solid green
Blinking Green
No power.
Hardware failure
Diagnostic Code; refer to Table 33
– I/O Module LED Diagnostics.
At least one output is Forced.
Cold start with passing diagnostics
Normal scanning
Channel LEDs
(one per input or
output)
For Inputs, indicates On or Off status
of the field input even if Forced to the
opposite state.
For Outputs, indicates On or Off status
of the output including if Forced.