Rockwell-automation CS300 Trusted Bridge Module Manual de usuario descargar pdf (Pagina 32)

Trusted

CS300 Bridge Module

Issue 02 Feb 10 PD-8162 32

5. Fault Finding and Maintenance

The Trusted

TMR Processor provides fault monitoring, self test and diagnostics functions.

Fault Detection within a Trusted

/ CS300 system can be categorised into four regions –

Trusted

TMR Processor and Expander Hardware

CS300 Bridge Hardware

CS300 I/O Hardware

User Application

Using current Trusted

methods for detection of faults, the TMR Processor can monitor for failures up

to the Expander section. The MP is also able to separate Bridge hardware faults from CS300 I/O

module faults. The CS300 I/O modules carry out on-board diagnostic tests which are relayed back to

the TMR Processor via the Bridge module.

The user application can also be programmed to read error flags in the I/O module fault registers to

annunciate the detection of module faults. Second faults that leave the system unable to confirm

healthy operation will result in the TMR Processor stopping all communication with the 8162 bridge

modules, ensuring that critical outputs go to a safe state when the internal watchdogs time out.

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Rockwell-automation CS300 Trusted Bridge Module Manual de usuario Pagina 32