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Rockwell Automation T8310 Trusted Expander Processor User Manual

Sds-8310 trusted, Industrial control system trusted, Expander processor-t8310

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SDS-8310
Trusted

TM

Industrial Control System

Trusted

TM

Expander Processor-T8310

Issue 5 Jan 2006

FRONT PANEL

T

83

10

T

ru

st

ed

E

x

p

an

d

er

P

ro

ce

ss

o

r

Active

Standby

TxRx A

TxRx B

TxRx C

Healthy

DESCRIPTION


The Trusted

TM

TMR Expander Processor

module resides in the processor slots of the
Trusted

TM

Expander Chassis and provides the

‘slave’ interface between the Expansion Bus
and the Expander Chassis backplane. The
Expander Bus allows multiple chassis systems
to be implemented using UTP cable
connections whilst maintaining the fault
tolerant, high bandwidth Inter-Module Bus
(IMB) capabilities.

The module provides fault containment
for the expander bus, the module itself
and the expander chassis, ensuring that
the effects of these potential faults are
localised

and

system

availability

maximised. The module is fault tolerant
with Hardware Implemented Fault
Tolerant

(HIFT),

Triple

Modular

Redundant

(TMR)

architecture.

Comprehensive diagnostics, monitoring
and

testing

provide

rapid

fault

identification. Hot standby and module
spareing configurations are supported,
allowing automatic and manual repair
strategies.

Communication between the Expander
Processor and the TMR Processor is via
the TMR Expander Interface Module
and the triplicated Expander Bus. The
Expander Bus is triplicated, point-to-
point architecture. Each channel of the
Expander Bus comprises separate
command and response media. Voting
is provided at the Expander Bus
Interface to ensure that cable faults are
tolerated, and the remainder of the
Expander Processor operates in a fully
triplicated mode, even in case of cable
faults occurring.

Communication between the Expander
Processor and the I/O modules in the
Expander Chassis is via the IMB on the
backplane of the Expander Chassis.
The IMB is identical to that within the
Controller Chassis, providing the same
fault

tolerant,

high

bandwidth

communications between the interface
modules and the TMR Processor. As
with the Expander Bus Interface all
transactions are voted, localising faults
to Fault Containment Region (FCR)
within the IMB should they occur.

The TMR Expander Processor Module
derives its internal voltages from dual
redundant +24V dc power supplied via
the

module

connector

from

the

Trusted

TM

Expander Chassis backplane.

Each FCR derives the required supplies
independently.

Non-critical

monitoring

and module status display
functions

(front

panel

LEDs) are also provided.


FEATURES

Triple Modular
Redundant (TMR),
fault tolerant (3-2-0)
operation

Hardware
Implemented Fault
Tolerant (HIFT)
architecture

Dedicated hardware
and software test
regimes which
provide fast fault
recognition and
response times

Automatic fault
handling without
nuisance alarming

Hot replacement

Front panel status
LEDs