ICS Triplex TC-001-02-2M5 | Trusted System Digital Output Module
ICS Triplex TC-001-02-2M5 | Trusted System Digital Output Module - Image 2
ICS Triplex TC-001-02-2M5 | Trusted System Digital Output Module - Image 3
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ICS Triplex TC-001-02-2M5 | Trusted System Digital Output Module

  • Brand:​ ICS Triplex
  • Model:​ TC-001-02-2M5
  • Product Type:​ TMR Digital Output Module
  • Series:​ Trusted System
  • Core Function:​ Provides 16 channels of triple redundant 24V DC sourcing digital outputs for safety instrumented systems.
  • Key Specs:​ 16 channels, 24V DC sourcing output, 0.5A per channel, TMR architecture.
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Part number: ICS Triplex TC-001-02-2M5
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Description

TC-001-02-2M5: Product Overview
The ICS Triplex TC-001-02-2M5 is a triple modular redundant (TMR) digital output module designed for high-integrity safety instrumented systems within the Trusted platform. This module functions as the critical interface between the safety controller and field actuators, providing fault-tolerant control of devices such as solenoid valves, motor starters, and alarm annunciators. The module implements a robust architecture where three independent output channels control each field device, with voting logic that ensures correct operation even in the presence of internal component failures.
Installed in a Trusted system chassis, the module provides 16 channels of 24V DC sourcing digital outputs, meaning it supplies voltage to the field device. Each output channel incorporates three completely independent switching circuits that operate in parallel. The voting logic compares the commanded state from the three controller partitions and uses a two-out-of-three voting scheme to verify correct operation. This design ensures that a single component failure in any part of the output circuitry does not prevent the safety system from performing its intended function.
As part of the Trusted safety platform, this output module supports the high availability and safety integrity levels required in critical process safety applications. The design includes comprehensive diagnostics that monitor output channel health, detect field wiring faults including open circuits and short circuits, and verify that field devices are responding correctly to output commands. The combination of hardware redundancy and advanced diagnostic coverage provides the necessary features to achieve Safety Integrity Level (SIL) 3 certification according to IEC 61508 standards.
TC-001-02-2M5: Technical Specifications
  • Model Number:​ TC-001-02-2M5
  • Manufacturer:​ ICS Triplex
  • Product Type:​ TMR Digital Output Module
  • Number of Channels:​ 16 channels
  • Output Type:​ 24V DC sourcing
  • Output Current:​ 0.5A per channel continuous
  • Voltage Range:​ 18-30V DC operating range
  • On-State Voltage:​ 24V DC nominal
  • Off-State Leakage:​ <1 mA
  • Response Time:​ <1 ms
  • Overload Protection:​ Electronic current limiting
  • Short Circuit Protection:​ Yes, with automatic shutdown
  • Isolation:​ 1500V AC channel-to-channel and channel-to-system
  • Voting Logic:​ 2oo3 (two-out-of-three) voting
  • Diagnostics:​ Open circuit detection, short circuit detection
  • Safety Integrity:​ SIL 3 capable per IEC 61508
  • Operating Temperature:​ -40°C to +70°C
  • Connection:​ Removable terminal blocks
  • Status Indicators:​ Per-channel status LEDs
  • Power Supply:​ 24V DC nominal

Core Features & Customer Value
Triple Modular Redundant Output Architecture: The TMR design provides three independent switching paths for each output channel, ensuring that a single component failure cannot prevent the safety function from operating. The voting logic continuously monitors all three output circuits and can maintain correct operation even with multiple failures. This architecture is critical for output modules as they directly control field devices that perform the final safety action. The redundancy ensures that safety functions such as valve closure or equipment shutdown will occur when demanded.
Sourcing Output Configuration: The sourcing output design provides positive voltage to field devices, which is a common requirement for many industrial actuators and solenoid valves. This configuration simplifies field wiring when interfacing with devices that require an external voltage source. The module can directly drive loads up to 0.5A, eliminating the need for interposing relays in many applications and reducing system complexity.
Comprehensive Diagnostics: The module includes advanced diagnostics that monitor the health of each output channel and verify proper operation of connected field devices. The system can detect open circuit conditions, short circuits, and excessive load impedance. This diagnostic capability provides early warning of developing issues and supports predictive maintenance strategies, reducing the probability of failure on demand.
Typical Applications
In emergency shutdown systems for hydrocarbon processing facilities, the module controls shutdown valves, emergency ventilation dampers, and fire protection system actuators. The TMR architecture ensures that safety actions will be executed when required, even if internal component failures occur.
For fire and gas protection systems, the module operates alarm annunciators, horn/strobe units, and suppression system releases. The comprehensive diagnostics provide assurance that the output circuits will function when activated.
In turbine protection systems, the module controls fuel shutoff valves and compressor anti-surge valves. The robust design withstands the electrical noise typically present in power generation environments while maintaining reliable operation.

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