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Rockwell Automation Trusted TMR Product Overview

Rockwell Automation Trusted TMR Product Overview

120 vdc output module – 32 channel
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ICSTT-RM281P-EN-P (PD-T8471)
Trusted TMR 120 Vdc Output Module – 32 Channel
Product Overview
The Trusted® TMR 120 Vdc Digital Output Module interfaces to 32 field devices. Triplicated
diagnostic tests are performed throughout the Module including measurements for current, and
voltage on each portion of the voted output channel. Tests are also performed for stuck on and
stuck off failures. Fault tolerance is achieved through a Triple Modular Redundant (TMR)
architecture within the Module for each of the 32 output channels.
Automatic line-monitoring of the field device is provided. This feature enables the Module to detect
both open and short circuit failures in field wiring and load devices.
The Module provides on-board Sequence of Events (SOE) reporting with a resolution of 1 ms. An
output change of state triggers an SOE entry. Output states are automatically determined by
voltage and current measurements on-board the Module.
Features:
• 32 Triple Modular Redundant (TMR) output channels per Module.
• Comprehensive, automatic diagnostics and self-test.
• Automatic line monitoring per channel to detect open circuit and short circuit field wiring
and load faults.
• 2500 V impulse withstand opto/galvanic isolation barrier.
• Automatic over-current protection (per channel), no fuses required.
• On-board Sequence of Events (SOE) reporting with 1 ms resolution.
• Module can be hot-replaced on-line using dedicated Companion (adjacent).
• Front Panel output status Light Emitting Diodes (LEDs) for each channel indicate output
status and field wiring faults.
• Front Panel Module status LEDs indicate module health and operational mode (Active,
Standby, Educated).
Rockwell Automation Publication ICSTT-RM281P-EN-P (PD-T8471) Issue 16
Trusted

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  • Page 1 ICSTT-RM281P-EN-P (PD-T8471) Trusted Trusted TMR 120 Vdc Output Module – 32 Channel Product Overview The Trusted® TMR 120 Vdc Digital Output Module interfaces to 32 field devices. Triplicated diagnostic tests are performed throughout the Module including measurements for current, and voltage on each portion of the voted output channel.
  • Page 2 Trusted ICSTT-RM281P-EN-P (PD-T8471) • TϋV Certified IEC 61508 SIL 3 • Outputs are powered in isolated groups of eight. Rockwell Automation Publication ICSTT-RM281P-EN-P (PD-T8471) Issue 16...
  • 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 120 Vdc Output Module – 32 Channel 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.
  • Page 5 Trusted TMR 120 Vdc Output Module – 32 Channel 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 120 Vdc Output Module – 32 Channel 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...
  • Page 7 Trusted TMR 120 Vdc Output Module – 32 Channel PREFACE ISSUE RECORD Issue Date Comments Aug 05 Format / Text editing Feb 06 Removal of SmartSlot Aug 06 Channel States Dec 06 Weights & Dims Mar 07 Supply voltage Nov 07...
  • Page 8 PREFACE Trusted TMR 120 Vdc Output Module – 32 Channel Page intentionally left blank Issue 16 Rockwell Automation Publication ICSTT-RM281P-EN-P (PD-T8471)

  • Page 9: Table Of Contents

    Trusted TMR 120 Vdc Output Module – 32 Channel Table of Contents Table of Contents Description ......................3 1.1. Field Termination Unit (FTU) ....................... 4 1.2. Front Panel Unit (FPU) ........................ 4 1.3. Host Interface Unit (HIU) ......................5 1.4.
  • Page 10 Table of Contents Trusted TMR 120 Vdc Output Module – 32 Channel Fault Finding and Maintenance ................29 5.1. Fault Reporting .......................... 29 5.2. Field Wiring Faults ........................29 5.3. Module Faults ........................... 29 5.4. Companion Slot ......................... 30 5.5.

  • Page 11: Description

    Trusted TMR 120 Vdc Output Module – 32 Channel 1. Description 1. Description The TMR 120 Vdc Digital Output Module is a member of the Trusted range of Input/Output (I/O) Modules. All Trusted I/O Modules share common functionality and form. At the most general level, all I/O Modules interface to the Inter-Module Bus (IMB) which provides power and allows communication with the TMR Processor.

  • Page 12: Field Termination Unit (Ftu)

    1. Description Trusted TMR 120 Vdc Output Module – 32 Channel All High Integrity I/O Modules are made up of 4 sections: Host Interface Unit (HIU), the Field Interface Unit (FIU), the Field Termination Unit (FTU), and the Front Panel Unit (or FPU).

  • Page 13: Host Interface Unit (Hiu)

    Trusted TMR 120 Vdc Output Module – 32 Channel 1. Description 1.3. Host Interface Unit (HIU) The HIU is the point of access to the Inter-Module Bus (IMB) for the Module. It also provides power distribution and local programmable processing power. The HIU is the only section of the I/O Module to directly connect to the IMB Backplane.

  • Page 14: Line Monitoring And Output States

    1. Description Trusted TMR 120 Vdc Output Module – 32 Channel The FIU receives isolated power from the HIU for logic. The FIU provides additional power conditioning for the operational voltages required by the FIU circuitry. An isolated 6.25 Mbit/sec serial link connects each FIU to one of the HIU slices.

  • Page 15: Fault Detection/Testing

    Trusted TMR 120 Vdc Output Module – 32 Channel 1. Description 1.7. Fault Detection/Testing Extensive diagnostics provide the automatic detection of Module faults. The TMR architecture of the Output Module and the diagnostics performed verify the validity of all critical circuits. Using the TMR architecture provides a Fault Tolerant method to withstand the first fault occurrence on the Module and continue normal output controls without interruption in the system or process.

  • Page 16: Output Switch Structure

    1. Description Trusted TMR 120 Vdc Output Module – 32 Channel 1.9. Output Switch Structure The Digital Output Module provides a TMR switch topology where the load is driven by a total of three fully monitored, fail safe (6 element) switch channels, one physically resident on each OFIU in the Module.

  • Page 17: Switch Diagnostics

    Trusted TMR 120 Vdc Output Module – 32 Channel 1. Description Figure 4 Simplified Switch Circuit Diagram A resistor provides a means of continuously monitoring the switch current. A signal transistor is used to drive the gate of Switch 2. It provides Switch 2 with a negative gate voltage, to minimize its on resistance, and serves to hold Switch 2 on in the event that the secondary gate control loses power.

  • Page 18: Short Circuit Protection Issues

    1. Description Trusted TMR 120 Vdc Output Module – 32 Channel 1.9.2. Short Circuit Protection Issues In a fuse-free design such as in the Trusted System, the Module is required to respond rapidly in the event of an over-current or over-power situation. In fact, this protection scheme offers advantages to fuses in both automatic recovery and speed of action.

  • Page 19: Installation

    If the pins have not been damaged, try reinstalling the module. 2.2. Cable Selection The I/O cable suitable for use with the Trusted TMR 120 Vdc Digital Input Module is detailed in the following Product Description. • Trusted I/O Companion Slot Cables, publication...

  • Page 20: Termination

    2. Installation Trusted TMR 120 Vdc Output Module – 32 Channel The Product Description also details the types of Field Termination Assembly (FTA) or Versatile Field termination Assembly (VFTA) which may be used with this type of Module. Custom length multi-core FTA cables are 0.5 mm with a resistance of 40 Ω/km.

  • Page 21: Trusted Module Polarisation/Keying

    Trusted TMR 120 Vdc Output Module – 32 Channel 2. Installation Pwr Group 3 Rtn Pwr Group 3 (+) Pwr Group 3 Rtn Chan 23 (+) Pwr Group 3 (+) Chan 19 (+) Chan 24 (+) Pwr Group 3 (+)
  • Page 22 2. Installation Trusted TMR 120 Vdc Output Module – 32 Channel Cable Exit Polarising/Keying Smart Pins. Trusted Cable Swap (Remove using hood Connector side cutters where if Fitted identified below) Release button Figure 5 Module Polarisation For Cables with Companion slot installations both keying strips must be polarised.

  • Page 23: Application

    Trusted TMR 120 Vdc Output Module – 32 Channel 3. Application 3. Application 3.1. Module Configuration There is no configuration required to the physical Output Module. All configurable characteristics of the Module are performed using tools on the Engineering Workstation (EWS) and become part of the application or System.INI file that is loaded into the TMR...
  • Page 24 3. Application Trusted TMR 120 Vdc Output Module – 32 Channel Rack I/O Board Description Data Type Direction No. of Channels DISCREP Channel Discrepancy Integer HKEEPING Housekeeping Registers Integer INFO I/O Module Information Integer Table 3 Complex Equipment Definition There are two OEM parameters included in the first rack (DO Board). These OEM parameters define the primary module position;...

  • Page 25: Rack 1: Do

    Trusted TMR 120 Vdc Output Module – 32 Channel 3. Application 3.2.1. Rack 1: DO This board provides the connection to the logical output control signal for each of the field outputs. Channel Description Field output channel 1 logical state...

  • Page 26: Rack 3: Ai

    3. Application Trusted TMR 120 Vdc Output Module – 32 Channel Value Description Output de-energized (OFF) No field supply voltage Unused Table 7 Rack 2: STATE Output Descriptions 3.2.3. Rack 3: AI The AI board returns the field loop voltage at the output.

  • Page 27: Rack 4: Ci

    Trusted TMR 120 Vdc Output Module – 32 Channel 3. Application 3.2.4. Rack 4: CI The CI board returns the field loop current at the output. Channel Description Field output channel 1 current Field output channel 2 current Field output channel 32 current Table 9 Rack 4: CI descriptions The current is the sum value taken from the triplicated Module.

  • Page 28: Rack 7: Housekeeping

    3. Application Trusted TMR 120 Vdc Output Module – 32 Channel Discrepancy status outputs 1 to 16 (output 1 is LSB) Discrepancy status outputs 17 to 32 (output 17 is LSB) Table 11 Rack 6: DISCREP bit Descriptions Each of the words reports the discrepancy status of 16 output channels. The corresponding bit within the word is set to ‘1’...
  • Page 29 Trusted TMR 120 Vdc Output Module – 32 Channel 3. Application Description Channel Units (Full Scale Range) SmartSlot Link Voltage -32768 32767 FIU Output Group 1 Field Supply Voltage -32768 32767 1/250V FIU Board Temperature, Output Group 1 -32768 32767...

  • Page 30: Rack 8: Info

    3. Application Trusted TMR 120 Vdc Output Module – 32 Channel Description Channel Units (Full Scale Range) Diagnostic error code Table 12 Rack 7: Housekeeping Descriptions Each input within the housekeeping rack is reported as an integer. In general, the application engineer will not normally require these inputs.
  • Page 31 Trusted TMR 120 Vdc Output Module – 32 Channel 3. Application the Active Module chassis and slot number channels with those in the Standby Module chassis and slot number channels. The chassis and slot numbers are set to zero if the Module is not present.

  • Page 32: Sequence Of Events Configuration

    3. Application Trusted TMR 120 Vdc Output Module – 32 Channel The ‘Active Module is simulated’ channel is set to non-zero if the Active Module is being simulated, this will only be set if the Module is not present or the simulation enable has been set within the Module’s configuration in the System.INI file.

  • Page 33: Operation

    Trusted TMR 120 Vdc Output Module – 32 Channel 4. Operation 4. Operation 4.1. Front Panel Status indicators on the Front Panel of the Module provide visual indications of the Module’s operational status and field output status. Each indicator is a bi-colour LED.
  • Page 34 4. Operation Trusted TMR 120 Vdc Output Module – 32 Channel Figure 6 Module Front Panel Issue 16 Rockwell Automation Publication ICSTT-RM281P-EN-P (PD-T8471)

  • Page 35: Module Status Leds

    Trusted TMR 120 Vdc Output Module – 32 Channel 4. Operation 4.2. Module Status LEDs There are six module status indicators on the Module Front Panel: three Healthy, one Active, one Standby, and one Educated. The Healthy indicators are controlled directly by each Module slice.

  • Page 36: I/O Status Leds

    4. Operation Trusted TMR 120 Vdc Output Module – 32 Channel INDICATOR STATE DESCRIPTION Educated Module is not educated. Green Module is educated. Green – flashing Module is recognised by the Processor but education is not complete. Amber - Flashing Active/Standby changeover in progress.

  • Page 37: Fault Finding And Maintenance

    Trusted TMR 120 Vdc Output Module – 32 Channel 5. Fault Finding and Maintenance 5. Fault Finding and Maintenance 5.1. Fault Reporting Output Module faults are reported to the user through visual indicators on the Front Panel of the Module and through status variables which may be automatically monitored in the application programs and external system communications interfaces.

  • Page 38: Companion Slot

    5. Fault Finding and Maintenance Trusted TMR 120 Vdc Output Module – 32 Channel 5.4. Companion Slot For a Companion Slot configuration, two adjacent slots in a Trusted Chassis are configured for the same Module function. One slot is the primary slot and the other a unique secondary (or spare) slot.

  • Page 39: Transfer Between Active And Standby Modules

    Trusted TMR 120 Vdc Output Module – 32 Channel 5. Fault Finding and Maintenance 5.6. Transfer between Active and Standby Modules The TMR Processor is responsible for managing a pair of I/O Modules through an Active/Standby changeover. The following rules apply to Active/Standby changeovers, though the TMR Processor and not the I/O Module enforces them: •...
  • Page 40 5. Fault Finding and Maintenance Trusted TMR 120 Vdc Output Module – 32 Channel dynamic change over data (COD). The previous Standby Module then becomes the Active Module and the original Module becomes Standby. If the currently Active Module does not successfully complete the self-tests, the TMR Processor will revert it to the Standby state, and the Module in the Maintain state will revert back to the Active state.

  • Page 41: Specifications

    Trusted TMR 120 Vdc Output Module – 32 Channel 6. Specifications 6. Specifications System Supply Voltage Range 20 Vdc to 32 Vdc Circuit Type Fault tolerant, fully triplicated with optional line monitoring Number of Outputs 32 Channels Independent Power Groups...
  • Page 42 6. Specifications Trusted TMR 120 Vdc Output Module – 32 Channel Channel to Channel Crosstalk >-40 dB Power Consumption Field Supply (1 A per channel) 24 W System Supply (24 V) 24 W Isolation 150 V Reinforced (continuous) Power Group to Power Group [Type tested at 2436 Vdc for 60 s].
  • Page 43 Trusted TMR 120 Vdc Output Module – 32 Channel 6. Specifications Dimensions Height 266 mm (10.5 in) Width 31 mm (1.2 in) Depth 303 mm (12 in) Weight 1.342 kg (3 lb) Note 1) 150 Vrms Secondary circuit derived from Mains, OVC II up to 300V.

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