Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 229)

8–3
Publication 1336 FORCE–5.13 –– September, 1998
Channel A Status D8, D10, and D12
Channel B Status D13, D14, and D15
These LEDs reflect the operational status of either RIO or DH+
communications.
LED: State: RIO Adapter Function: RIO Scanner Function: DH+ Function:
D8 and D13
(Red)
LED on Hardware malfunction Hardware malfunction
Domino plug
malfunction
LED off
Communications loss or
D12 and D15 on.
None None
LED
blinking
A PLC or RIO scanner
has the rack inhibited or
the PLC is in Reset/
Program/Test mode
All devices in the scan
list are faulted Duplicate node on DH+
link
D10 and
D14
LED on None None
Normal DH+
communications
(Yellow)
LED off None None
PLC Communications
Adapter Board faulted
LED
blinking
None None
No communications
over DH+
D12 and
D15
LED on
Normal PLC controller
communications All devices in the scan
list are operational
None
(Green)
LED off
No communications to
PLC control or D8 and
D13 on No communications to
PLC control or D8 and
D13 on
None
LED
blinking
PLC in Reset/Program/
Test mode or PLC has
rack inhibited
At least one device on the
scan list is faulted. For
example, if you turn one
half rack off, this light
blinks.
None