Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 User Manual
Page 192
7–4
Troubleshooting
Publication 1336 FORCE–5.18 ––March, 1999
Primary Channel Status D8, D10, and D12
Redundant Channel Status D13, D14, and D15
These LEDs reflect the operational status of ControlNet
communications.
LED:
State:
ControlNet Adapter Function:
D8 and D13
(Red)
LED on
Hardware malfunction
LED off
Communications loss or D12 and D15
on.
LED
blinking
A PLC has the rack inhibited or the
PLC is in Reset/Program/Test mode
D10 and
D14
LED on
Malfunction
(Yellow)
LED off
Malfunction
LED
blinking
Operational
D12 and
D15
LED on
Normal PLC controller
communications
(Green)
LED off
No communications to PLC control or
D8 and D13 on
LED
blinking
PLC in Reset/Program/Test mode or
PLC has rack inhibited
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