Rockwell-automation 1794-ASB/E Remote I/O Adapter Module User Manual Manual de usuario descargar pdf (Pagina 54)

Adapter Fault

Local Fault

Adapter Active

ACTIVE

PWR



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 Fault Reset

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

Fault Condition Actions Fault Reset

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.

power to establish new

identification for module.

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