Rockwell Automation T8311 User Manual
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PD-T8311
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TMR Expander Interface
Introduction
The TrustedTM TMR Expander Interface module resides in the TrustedTM 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.
2V Certified IEC 61508 SIL 3
• T
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Issue Record
Issue
Number Date Revised by Technical CheckAuthorised by Modification
9 Oct 05 J W Clark Format
10 Nov 06 N Owens I Vince P Stock Specification
11 Dec 06 N Owens I Vince P Stock Cable distance
12 Mar 07 N Owens I Vince P Stock System INI
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Table of Contents
1. Description......................................................................................................................................8
1.1. Overview......................................................................................................................................9
1.2. Power Distribution........................................................................................................................9
2. Installation ....................................................................................................................................10
2.1. Module Installation .....................................................................................................................10
2.2. Module Insertion and Removal ..................................................................................................10
2.2.1. Module Replacement ...................................................................................................................11
2.3. Expander Bus Connection .........................................................................................................12
2.3.1. Cable Assembly Replacement .....................................................................................................12
2.4. TrustedTM Module Polarisation/Keying.......................................................................................13
3. Application ....................................................................................................................................14
3.1. Message Forwarding .................................................................................................................14
3.2. Control Signal Forwarding .........................................................................................................14
3.3. I/O Complex Equipment Definition T8311 .................................................................................15
3.3.1. Voltage Level Format ...................................................................................................................16
3.4. Module Information ....................................................................................................................17
3.5. System Initialisation File ............................................................................................................17
3.6. Expander Chassis IMB Connector (SK1) ..................................................................................18
3.7. Expander chassis Bus Connector (PL4)....................................................................................19
4. Operation......................................................................................................................................20
4.1. Operating Modes .......................................................................................................................20
4.1.1. Standby ........................................................................................................................................20
4.1.2. Active ............................................................................................................................................20
4.1.3. Expander Interface Module Active/standby Control .....................................................................20
4.2. Communication Busses .............................................................................................................21
4.2.1. Expander bus ...............................................................................................................................21
4.2.2. Inter-Module Bus ..........................................................................................................................21
4.3. Front Panel ................................................................................................................................22
4.3.1. Healthy Indicator` .........................................................................................................................23
4.3.2. Active Indicator.............................................................................................................................23
4.3.3. Standby Indicator..........................................................................................................................23
5. Fault Finding and Maintenance ....................................................................................................24
5.1. PCBS and Connectors...............................................................................................................24
5.2. Troubleshooting .........................................................................................................................24
6. Specifications ...............................................................................................................................26
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Figures
Figure 1 Functional Block Diagram ..........................................................................................................8
Figure 2 Module Polarisation ..................................................................................................................13
Figure 3 Module Front Panel ..................................................................................................................22
Tables
Table 1 Chassis Connector (SK1) Pinout ...............................................................................................18
Table 2 Chassis Bus Connector (PL4) ...................................................................................................19
Table 3 Troubleshooting Guide ..............................................................................................................25
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Notice
The content of this document is confidential to ICS Triplex Technology Ltd. companies and their
partners. It may not be given away, lent, resold, hired out or made available to a third party for any
purpose without the written consent of ICS Triplex Technology Ltd.
his document contains proprietary information that is protected by copyright. All rights are reserved.
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Microsoft, Windows, Windows 95, Windows NT, Windows 2000, and Windows XP are registered
trademarks of Microsoft Corporation.
The information contained in this document is subject to change without notice. The reader should, in
all cases, consult ICS Triplex Technology Ltd. to determine whether any such changes have been
made. From time to time, amendments to this document will be made as necessary and will be
distributed by ICS Triplex Technology Ltd.
Information in this documentation set may be subject to change without notice and does not represent
a commitment on the part of ICS Triplex Technology Ltd.
The contents of this document, which may also include the loan of software tools, are subject to the
confidentiality and other clause(s) within the Integrator Agreement and Software License Agreement.
No part of this documentation may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying and recording, for any purpose, without the express
written permission of ICS Triplex Technology Ltd.
Disclaimer
The illustrations, figures, charts, and layout examples in this manual are intended solely to illustrate the
text of this manual.
The user of, and those responsible for applying this equipment, must satisfy themselves as to the
acceptability of each application and use of this equipment.
This document is based on information available at the time of its publication. While efforts have been
made to be accurate, the information contained herein does not purport to cover all details or variations
in hardware or software, nor to provide for every possible contingency in connection with installation,
operation, or maintenance. Features may be described herein which are present in all hardware or
software systems. ICS Triplex Technology Ltd. assumes no obligation of notice to holders of this
document with respect to changes subsequently made.
ICS Triplex Technology Ltd. makes no representation or warranty, expressed, implied, or statutory with
respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of
the information contained herein. No warranties of merchantability or fitness for purpose shall apply.
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Revision and Updating Policy
All new and revised information pertinent to this document shall be issued by ICS Triplex Technology
Ltd. and shall be incorporated into this document in accordance with the enclosed instructions. The
change is to be recorded on the Amendment Record of this document.
Precautionary Information
WARNING
Warning notices call attention to the use of materials, processes, methods, procedures or limits which
must be followed precisely to avoid personal injury or death.
CAUTION
Caution notices call attention to methods and procedures which must be followed to avoid damage to
the equipment.
Notes:
Notes highlight procedures and contain information to assist the user in the understanding of the
information contained in this document
Warning
RADIO FREQUENCY INTERFERENCE
Most electronic equipment is influenced by Radio Frequency Interference (RFI). Caution should be
exercised with regard to the use of portable communications equipment around such equipment.
Signs should be posted in the vicinity of the equipment cautioning against the use of portable
communications equipment.
MAINTENANCE
Maintenance must be performed only by qualified personnel, otherwise personal injury or death, or
damage to the system may be caused.
Caution
HANDLING
Under no circumstances should the module housing be removed.
Associated Documents
Product Descriptions (PD) provide product specific information.
The Safety Manual contains the recommended safety requirements for the safety system design.
The PD8082B – Toolset Suite provides specific guidance on system configuration and application
generation.
The Operator and Maintenance Manual contains general guidelines on maintenance and diagnostic
procedures.
For technical support email: support@icstriplex.com
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1. Description
Figure 1 Functional Block Diagram
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1.1. Overview
The TMR Expander Interface is a fault tolerant design based on TMR architecture arranged in a lockstep configuration. Figure 1 shows, in simplified terms, the basic structure of the TMR Expander
Interface.
he module has three main fault containment regions (FCR A, B and C). Each of the main FCRs
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contains interfaces to the Expander Bus and Inter-Module Bus (IMB), an active/standby interface to the
other TMR Expander Interface in the chassis, control logic, communications transceivers and power
supplies.
Communication between the module and the TMR Processor is via the IMB on the backplane of the
Controller Chassis. The IMB provides fault tolerance and high bandwidth communications between the
Interface Modules and the TMR Processor. All transactions are voted, localising faults to the IMB
should they occur.
Communication between the Interface Module and the TMR Expander Processor in the Expander
Chassis is via the 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.
A fourth FCR (FCR D) provides the non-critical monitoring and display functions and is also part of the
inter-FCR Byzantine voting structure.
Isolation is provided between FCRs wherever interfaces are required, to ensure that faults can not
propagate between them.
1.2. Power Distribution
The TMR Expander Interface Module derives its internal voltages from dual redundant +24V dc power
supplied via the module connector from the Trusted
derives the required supplies independently.
TM
Controller Chassis backplane. Each FCR
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