I/o status indicator, I/o status indicator -3 – Rockwell Automation 1784-PCIDS DeviceNet PCI Communication Interface Card User Manual
Page 55

Interpret Status Indicators (LEDs) 7-3
Publication 1784-IN004E-EN-P - April 2005
I/O Status Indicator
This bi-color (green/red) LED provides information concerning the states of inputs and/or
outputs.
Condition
Status
Indicates
off
output(s) inactive
input(s) inactive
All Outputs are inactive.
All inputs are inactive.
green
output(s) active
input(s) active
One or more outputs are active and under control,
and no outputs are faulted.
One or more inputs are active and producing data,
and no inputs are faulted.
flashing green
1
output(s) idle
One or more outputs are idle and no outputs are
active or faulted.
flashing red
1
output(s) faulted
input(s) faulted
One or more outputs are faulted, and may be in
the fault state.
One or more inputs are faulted, and may be in the
fault state.
red
output(s) forced off
input unrecoverable fault
One or more outputs are forced off (may be an
unrecoverable fault).
One or more inputs has an unrecoverable fault.
1
The flash rate of the LED is approximately 1 flash per second. The LED should be on for approximately
0.5 seconds and off for approximately 0.5 seconds.