Rockwell Automation T8311 Trusted Expander Interface - Manual

Trusted TM
PD-T8311
Issue 12 Mar 07 PD-T8311 1
Trusted
TM
TMR Expander Interface
Introduction
The Trusted TM TMR Expander Interface module resides in the Trusted TM Controller Chassis and
provides the ‘master’ interface between the Inter-Module Bus (IMB) in the Controller Chassis and the
Expander Bus. The Expander Bus allows multiple chassis systems to be implemented using UTP
cable connections whilst maintaining the fault tolerant, high bandwidth IMB capabilities.
The module provides fault containment for the Expander Bus, the module itself and the IMB in the
Controller Chassis, ensuring that the effects of these potential faults are localised and system
availability maximised. The module is fault tolerant with HIFT TMR architecture. Comprehensive
diagnostics, monitoring and testing provide rapid fault identification. Hot standby and module spare
slot configurations are supported, allowing automatic and manual repair strategies.
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 very
fast fault recognition and response times
• Automatic fault handling without nuisance alarming
• Hot replacement
• Front panel indicators that show module health and status.
• T 2 V Certified IEC 61508 SIL 3