F-4Troubleshooting

Controller Communication Channel Troubleshooting

Indicator

Color

Channel Mode

Description

Probable Cause

Recommended Action

A or B

Green

Remote I/O Scanner

Active Remote I/O link, all

Normal operation

No action required

 

(steady)

 

adapter modules are

 

 

 

 

 

 

 

present and not faulted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remote I/O Adapter

Communicating with

 

 

 

 

 

 

 

scanner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DH+

Controller is transmitting or

 

 

 

 

 

 

 

receiving on DH+ link

 

 

 

 

 

 

 

 

 

 

 

 

 

Green

Remote I/O Scanner

At least one adapter is

Power off at

Restore power to

 

(blinking

 

faulted or has failed

 

remote rack

 

the rack

 

rapidly or

 

 

Cable broken

Repair cable

 

slowly)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DH+

No other nodes on network

 

 

 

 

 

Red

Remote I/O Scanner

Hardware fault

Hardware error

Turn power off, then on

 

(steady)

Remote I/O Adapter

 

 

 

 

 

 

 

DH+

 

 

 

Check that the software

 

 

 

 

 

 

configurations match the

 

 

 

 

 

 

hardware set-up

 

 

 

 

 

 

Replace the controller.

 

 

 

 

 

 

 

 

 

Red

Remote I/O Scanner

All adapters faulted

Cable not

Repair cable

 

(blinking

 

 

 

connected or

 

 

 

rapidly or

 

 

 

broken

 

 

 

slowly)

 

 

Power off at

Restore power to racks

 

 

 

 

 

remote racks

 

 

 

 

 

 

 

 

 

 

DH+

Bad communication on DH+

Duplicate

Correct station address

 

 

 

 

node detected

 

 

 

 

 

 

 

 

 

Off

Remote I/O Scanner

Channel offline

Channel is not

Place channel online

 

 

Remote I/O Adapter

 

being used

if needed

 

 

DH+

 

 

 

 

 

 

 

 

 

 

 

 

 

Publication 1785-UM012D-EN-P - July 2005

Page 352
Image 352
Bradley Smoker PLC-5 user manual Controller Communication Channel Troubleshooting, Color Channel Mode Description, Dh+