Maintenance

Detecting Failures in the Standby Backplane

Troubleshooting

To determine which component failed, compare the status of the controller, Hot

 

Components

Standby module and RIO head to the chart below.

 

 

 

 

 

 

 

 

Controller

CHS 110

RIO Head

Failure

Description

 

 

 

 

 

 

 

Stops

All LEDs off except

All LEDS off except

Controller

The Interface error

 

 

READY OR COM ACT

READY OR

 

patterns are described in

 

 

displays error pattern

READY on and

 

Com Act Error Patterns,

 

 

 

COM ACT blinks

 

p. 209

 

 

 

once a second

 

 

 

 

 

 

 

 

 

Runs as offline

COM ACT displays

READY on and

CHS 110

The Com Act error

 

 

error pattern

COM ACT stops

 

patterns are described in

 

 

 

blinking

 

Com Act Error Patterns,

 

 

 

 

 

p. 209

 

 

 

 

 

 

 

Stops

All LEDs off except

COM ACT displays

RIO Head

After you have replaced

 

 

READY

error pattern

 

the module and cycled

 

 

 

 

 

power, you must perform a

 

 

 

 

 

program update, to ensure

 

 

 

 

 

that the controllers have

 

 

 

 

 

identical programs. Error

 

 

 

 

 

codes for a blinking Com

 

 

 

 

 

Act indicator are listed in

 

 

 

 

 

Com Act Error Patterns,

 

 

 

 

 

p. 209

 

 

 

 

 

 

 

Stops

All LEDs off except

READY on and

RIO Cable

In a dual cable system, the

 

 

READY

COM ACT blinks

Failure at

RIO head gives no

 

 

 

four times

Standby End

indication if only one cable

 

 

 

 

 

has failed.

 

 

 

 

 

 

 

Runs as offline

READY and COM ACT

COM ACT stops

Failure of Fiber

 

 

 

on

blinking

Link from

 

 

 

 

 

Standby

 

 

 

 

 

Transmit to

 

 

 

 

 

Primary Receive

 

 

 

 

 

 

 

 

Runs as offline

READY and COM ERR

COM ACT stops

Failure of Fiber

Refer to following

 

 

on

blinking

Link from Primary

description.

 

 

 

 

Transmit to

 

 

 

 

 

Standby Receive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

190

840 USE 106 00 January 2003

Page 190
Image 190
Schneider Electric 840 USE 106 0 Detecting Failures in the Standby Backplane, Controller CHS RIO Head Failure Description