Rockwell-automation T8311 Trusted Expander Interface Manual de usuario descargar pdf (Pagina 21)

Trusted

Module T8311

Issue 12 Mar 07 PD-T8311 21

4.2. Communication Busses

4.2.1. Expander bus

ach TMR Expander Interface Module contains a Bus Interface, isolation components and

transceivers to the Expander Bus. The triplicated Expander Bus provides communication

interconnection between the TMR Processor Chassis and the Expander Chassis at a data transfer rate

of 1.5GMbps via UTP cables.

4.2.2. Inter-Module Bus

Each TMR Expander Interface Module FCR contains a Bus Interface to the Inter-Module Bus. The

triplicated Inter-Module Bus provides communication interconnection between modules in the TMR

Controller Chassis, at a data transfer rate of up to 12.5Mbps.

The Inter-Module Bus handles the following triplicated signals:

Data

8-bit, bi-directional bus.

Control

Bus clocks, module enables and bus direction control.

System Watchdog

System Watchdog signal to the modules.

Power Fail

System power fail warning to modules.

Slot

Indicating the left or right Trusted

TMR Expander Processor slot

position to the Trusted

TMR Processor.

Chassis ID

a 4-bit code indicating the chassis number or id.

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Rockwell-automation T8311 Trusted Expander Interface Manual de usuario Pagina 21