Rockwell Automation 1794-ASB/E Remote I/O Adapter Module User Manual - Manual (Page 54)

Adapter Fault
Local Fault
Adapter Active
ACTIVE PWR
AllenĆBradley
FAULT
LOCAL
FAULT
ADAPTER
4–2 Troubleshooting
Publication 1794ĆUM009D-EN-P - April 2004
Table 4.A
Remote I/O System Troubleshooting Guide
Communication States and Module Display
Local
Fault
Adapter
Fault
Adapter
Active
Operating State Actions FaultReset
Off Off On Normal Communications
Outputs enabled.
Communicating with scanner
Not applicable
Off Off Blinking Program or Test mode
Outputs disabled
Communicating with scanner
Sending current input status
back to scanner.
Not applicable
Off Off Off
Communication (lack of
communications)
All modules; digital outputs in the
rack follow HLS setting.
Refer to page 2-9 for analog
output action.
Resume proper communications (if no
processor restart lockout)
Off Blinking alternately
Processor lockout in effect
during communications by
scanner
Outputs follow last state switch
setting.
No replies sent to scanner
Press Reset button on front of adapter
module (or cycle power) and resume
proper communication.
Module Faults
Local
Fault
Adapter
Fault
Adapter
Active
FaultCondition Actions FaultReset
On On Off Noise problems on I/O bus All outputs off. Communications off. Cycle power. (This fault is a fatal
fault.)
On Off
Following
Link
Status
Different module installed
replacing removed module.
Old inputs maintained. Outputs set
to zero.
AutoĆreset when incorrect module
is removed; or cycle power to
establish new identification for
module.
Blinking Off On
Module not responding.
Possibly module removed
Module not responding: Old inputs
maintained. Outputs set to zero.
All other modules: Outputs active
Replace same module; or cycle
Processor in RUN mode
Rack Fault Select NOT enabled
Possibly module removed
under power. Only module
removed is affected.
All other modules: Outputs active
(enabled).
Sending current input status back
to scanner.
p y
power to establish new
identification for module.