Rockwell Automation Trusted TMR Expander Interface Manual
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Rockwell Automation Trusted TMR Expander Interface Manual

Rockwell Automation Trusted TMR Expander Interface Manual

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PD-T8311
Trusted TMR Expander Interface
Product Overview
The Trusted® TMR Expander Interface Module resides in the Trusted 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
Unshielded Twisted Pair (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.
• TϋV Certified IEC 61508 SIL 3.
Rockwell Automation Publication PD-T8311
Issue 15
Trusted

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Summary of Contents for Rockwell Automation Trusted TMR Expander Interface

  • Page 1 PD-T8311 Trusted Trusted TMR Expander Interface Product Overview The Trusted® TMR Expander Interface Module resides in the Trusted 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 Unshielded Twisted Pair (UTP) cable connections whilst maintaining the fault tolerant, high bandwidth IMB capabilities.
  • Page 2 Trusted PD-T8311 Page intentionally left blank Rockwell Automation Publication PD-T8311 Issue 15...
  • Page 3 PREFACE PREFACE In no event will Rockwell Automation be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment. The examples given in this manual are included solely for illustrative purposes. Because of the many variables and requirements related to any particular installation, Rockwell Automation does not assume responsibility or reliability for actual use based on the examples and diagrams.
  • Page 4 PREFACE Trusted TMR Expander Interface IMPORTANT A login is required to access the link. If you do not have an account then you can create one using the "Sign Up" link at the top right of the web page. DOCUMENTATION FEEDBACK Your comments help us to write better user documentation.
  • Page 5 Trusted TMR Expander Interface PREFACE SCOPE This manual specifies the maintenance requirements and describes the procedures to assist troubleshooting and maintenance of a Trusted system. WHO SHOULD USE THIS MANUAL This manual is for plant maintenance personnel who are experienced in the operation and maintenance of electronic equipment and are trained to work with safety systems.
  • Page 6 PREFACE Trusted TMR Expander Interface WARNINGS AND CAUTIONS WARNING: EXPLOSION RISK Do not connect or disconnect equipment while the circuit is live or unless the area is known to be free of ignitable concentrations or equivalent AVERTISSEMENT - RISQUE D’EXPLOSION Ne pas connecter ou déconnecter l’équipement alors qu’il est sous tension, sauf si...
  • Page 7 Trusted TMR Expander Interface PREFACE ISSUE RECORD Issue Date Comments Oct 05 Format Nov 06 Specification Dec 06 Cable distance May 07 System INI Oct 15 Rebranded and reformatted Standardisation of Relative Humidity Range and Operating Temperature Apr 16 Statements in the Specification Section Apr 18 New look front panel.
  • Page 8 PREFACE Trusted TMR Expander Interface Page intentionally left blank Issue 15 Rockwell Automation Publication PD-T8311...

  • Page 9: Table Of Contents

    Trusted TMR Expander Interface Table of Contents Table of Contents Description ......................3 1.1. Overview ............................. 4 1.2. Power Distribution ........................4 Application ......................5 2.1. Module Installation ........................5 2.2. Module Insertion and Removal ....................5 2.2.1. Module Replacement ......................6 2.3.
  • Page 10 Table of Contents Trusted TMR Expander Interface Specifications ......................22 Issue 15 Rockwell Automation Publication PD-T8311...

  • Page 11: Description

    Trusted TMR Expander Interface 1. Description 1. Description Figure 1 Functional Block Diagram Rockwell Automation Publication PD-T8311 Issue 15...

  • Page 12: Overview

    1. Description Trusted TMR Expander Interface 1.1. Overview The TMR Expander Interface is a fault tolerant design based on TMR architecture arranged in a lock-step configuration. Figure 1 shows, in simplified terms, the basic structure of the TMR Expander Interface.

  • Page 13: Application

    Trusted TMR Expander Interface 2. Application 2. Application 2.1. Module Installation CAUTION: The Expander Interface Module must reside in one of the I/O slots within the Controller Chassis. Modules must be configured as a pair in the System Configuration Tool, in adjacent slots, and with the left hand slot an odd numbered slot. An even numbered slot can only be configured as an Expander Interface Module if the preceding odd numbered slot is already configured as an Expander Interface Module.

  • Page 14: Module Replacement

    2. Application Trusted TMR Expander Interface If the module is to reside in a new chassis, or the system is being configured for the first time, ensure that the chassis address has been set correctly before installing the modules. See Controller Chassis Product Description (PD-T8100) for further details.

  • Page 15: Expander Bus Connection

    Trusted TMR Expander Interface 2. Application In Hot-standby configurations, with both Expander Interface Modules installed, the faulted module may be either the active or the standby module. In most cases the system will automatically switch to the healthiest module, therefore only the standby module will require replacement.

  • Page 16: Trusted Module Polarisation/Keying

    2. Application Trusted TMR Expander Interface Where it is critical to maintain system operation additional chassis may be installed and on-line operation maintained by transferred control to modules within that chassis using the I/O modules Smart Slot capability. 2.4. Trusted Module Polarisation/Keying All Trusted Modules have been Keyed to prevent insertion into the wrong position within a chassis.

  • Page 17: Operation

    Trusted TMR Expander Interface 3. Operation 3. Operation 3.1. Message Forwarding The primary function of the Expander is to provide a method of extending the IMB beyond a single Processor Chassis. The active TMR Expander Interface Module receives messages from the Processor Chassis IMB/backplane and forwards them to the Expander Bus when its slot position is enabled.

  • Page 18: I/O Complex Equipment Definition T8311

    3. Operation Trusted TMR Expander Interface As with the message forwarding, these signals are re-synchronised and majority voted, i.e. Byzantine voted at the TMR Expander Interface and TMR Expander Processor Modules. The signals are synchronous within the Expander Chassis even in the case of a fault within the Processor Chassis.

  • Page 19: Voltage Level Format

    Trusted TMR Expander Interface 3. Operation RACK 2: (INFO) 11 INTEGER inputs Channel 1:Chassis position of AM Channel 2:Slot position of AM Channel 3:Indication of global health of AM 1 – No slice errors and module is responding 0 – Some error has been found...

  • Page 20: Module Information

    3. Operation Trusted TMR Expander Interface 12 11 Sign Integer · Fractional To scale the value arithmetically simply divide the returned ‘integer’ by 512 to return the voltage as either a REAL or INTEGER as required. The input conversion tables may be used to convert the input value to engineering units, in this case voltage.

  • Page 21: Expander Chassis Imb Connector (Sk1)

    Trusted TMR Expander Interface 3. Operation 3.6. Expander Chassis IMB Connector (SK1) SK1 is a 185-way DIN41642 type connector. CONNECTOR SK1 PIN-OUT CHASSIS_GND CHASSIS_GND CHASSIS_GND CHASSIS_GND CHASSIS_GND IMB_+24V_RTN IMB_+24V_RTN IMB_+24V_RTN IMB_+24V_RTN IMB_+24V_RTN IMB_+24V_1 IMB_+24V_1 IMB_+24V_1 IMB_+24V_1 IMB_+24V_1 IMB_+24V_2 IMB_+24V_2 IMB_+24V_2...

  • Page 22: Expander Chassis Bus Connector (Pl4)

    3. Operation Trusted TMR Expander Interface CONNECTOR SK1 PIN-OUT IMBC_D0 IMBC_D1 IMBC_SLOT0_ID IMBC_D2 IMBC_D3 IMBC_SLOT1_ID IMBC_D4 IMBC_D5 IMBC_SLOT2_ID IMBC_D6 IMBC_D7 IMBC_SLOT3_ID IMBC_IOM_CK1 IMBC_SFTY_WDOG IMBC_+6.5V IMBC_IOM_CK2 IMBC_PWR_FAIL IMBC_+6.5V CHASSIS_GND CHASSIS_GND CHASSIS_GND CHASSIS_GND CHASSIS_GND Table 1 Chassis Connector (SK1) Pin-out 3.7. Expander Chassis Bus Connector (PL4) PL4 is a 96-way DIN41612, C-type connector.
  • Page 23 Trusted TMR Expander Interface 3. Operation CONNECTOR PL4 PIN-OUT TXB3+ TXB2+ TXB1+ TXB3- TXB2- TXB1- TXB6+ TXB5+ TXB4+ TXB6- TXB5- TXB4- RXB1+ LB_B_ACTN/STB_1 TXB7+ RXB1- LB_B_ACTN/STB_2 TXB7- RXB4+ RXB3+ RXB2+ RXB4- RXB3- RXB2- RXB7+ RXB6+ RXB5+ RXB7- RXB6- RXB5- TXC3+...

  • Page 24: Operation

    Trusted TMR Expander Interface 4. Operation 4. Operation 4.1. Operating Modes 4.1.1. Standby Standby is the default mode of operation for the Module, once internal supply levels are established. In this mode the Module may respond to command messages addressed to the Module itself over the IMB.

  • Page 25: Communication Busses

    Trusted TMR Expander Interface 4. Operation 4.2. Communication Busses 4.2.1. Expander Bus Each 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 1.5 Gbps via unshielded twisted pair (UTP) cables.

  • Page 26: Front Panel

    4. Operation Trusted TMR Expander Interface 4.3. Front Panel Figure 3 Module Front Panel Issue 15 Rockwell Automation Publication PD-T8311...

  • Page 27: Healthy Indicator

    Trusted TMR Expander Interface 4. Operation 4.3.1. Healthy Indicator Three LEDs, one for each of the three channels, indicating the overall health of each channel: LED 1 = Channel A LED 2 = Channel B LED 3 = Channel C A steady green LED indicates a healthy module;...

  • Page 28: Fault Finding And Maintenance

    Trusted TMR Expander Interface 5. Fault Finding and Maintenance 5. Fault Finding and Maintenance 5.1. PCBs and Connectors The TMR Expander Interface Module comprises a single printed circuit board (PCB) assembly fitted with two connectors, one each for the Expander Chassis IMB (SK1) and Expander Bus (PL4).
  • Page 29 Trusted TMR Expander Interface 5. Fault Finding and Maintenance Symptom Possible Cause Solution Both active or LED failure This condition may be indicated briefly during module power-up. standby LEDs OFF If another Expander Processor module is installed within the same chassis, use its indicators to verify the active/standby mode of this module.
  • Page 30 Trusted TMR Expander Interface 6. Specifications 6. Specifications Backplane (IMB) Supply 20 Vdc to 32 Vdc Field Supply Power Dissipation 54 W Backplane Supply Module Location T8100 I/O Module Slot Isolation 50 V Basic Insulation, Module to Backplane Supply Fusing...

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