Product Short Description
Product Brief Introduction
This module provides 16 independent optically isolated 24VDC digital input channels to collect on/off discrete signals from field switches, sensors, limit switches, proximity sensors and contact outputs. It adopts full TMR fault-tolerant architecture, integrated signal filtering, line fault diagnosis, electrical isolation and surge protection functions.
Description
Basic Product Specifications
- Manufacturer: Triconex (Schneider Electric Industrial Automation)
- Product Series: Trident TMR Safety Instrumented System
- Product Type: Digital Input Discrete Signal Acquisition Module
- Input Channels: 16 Independent Opto-Isolated Channels
- System Architecture: Full TMR Triple Modular Redundancy 2oo3 Voting Architecture
- Compatible Equipment: Trident system main chassis, expansion chassis and matched 2011 input baseplate
- Installation Mode: Standard slot plug-in, hot-swappable installation
Electrical Technical Specifications
- Nominal Field Input Voltage: 24 VDC
- Valid Operating Input Voltage Range: 19.2 VDC ~ 30 VDC
- Input Logic Threshold: ON ≥ 12 VDC; OFF ≤ 6 VDC
- Typical Input Current per Channel: 2 mA
- Maximum Input Current per Channel: 6 mA
- Optical Isolation Voltage: 1500 VDC (Field Side to Logic Side)
- Channel-to-Channel Isolation: Complete independent isolation, no common connection
- Maximum Input Response Time (with filtering): ≤ 5 ms
- Built-in Surge Protection Voltage: 1500 V
- Built-in Open Circuit & Short Circuit Detection Function
- Internal Logic Power Supply: 5 VDC System Backplane Power
- Module Power Consumption: <3 W
Environmental Specifications
- Operating Ambient Temperature: -40 °C ~ +70 °C
- Storage Temperature: -40 °C ~ +85 °C
- Operating Relative Humidity: 5% ~ 95% Non-Condensing
- Anti-Vibration Performance: Compliant with IEC 60068-2-6 industrial vibration standard
- Anti-Shock Performance: Compliant with IEC 60068-2-27 industrial shock standard
- Safety Certification: IEC 61508 SIL 2 Safety Certification, CE Certified, UL Certified
Mechanical Specifications
- Structure: Standard Trident compact plug-in module form factor
- Terminal Configuration: Independent anti-loosening field wiring terminals
- Mounting: Hot-swappable plug-and-play slot installation
- Shell Material: Industrial anti-corrosion flame-retardant plastic and metal composite structure
Functional Characteristics
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Full TMR Fault-Tolerant Safety Architecture
Three independent signal acquisition channels execute synchronous sampling and 2oo3 voting logic. Single channel fault completes isolation automatically without system shutdown, maintains continuous safe operation and eliminates single-point failure risk.
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16 Independent Opto-Isolated Input Channels
Each channel adopts complete optical isolation design, fully isolates field harsh electromagnetic interference and fault voltage from internal safety system, prevents fault propagation between channels and improves signal stability.
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Complete Real-Time Channel Diagnosis Function
Integrates full-channel open wire detection, short circuit detection, channel fault detection and module self-diagnosis. Fault status is displayed by LED indicators and uploaded to Trident controller in real time for alarm and maintenance management.
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High-Speed Stable Signal Acquisition & Filtering
Built-in professional digital signal filtering circuit, effectively suppresses field signal jitter and interference, realizes stable and accurate discrete signal identification with ≤5ms fast response speed.
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Hot-Swappable & Maintenance-Friendly Design
Supports online module replacement without powering down the entire safety system, greatly reduces system downtime and maintenance difficulty.
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Clear Status Visual Indication
Equipped with module running OK indicator, channel active indicator and channel fault indicator, realizes intuitive on-site status monitoring and rapid troubleshooting.
Application Scenarios
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Oil & Gas Industry
Wellhead emergency shutdown (ESD) signal monitoring, pipeline valve position feedback detection, gas compressor safety interlock signal collection, oil-gas gathering station field switch status monitoring.
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Petrochemical & Refining Industry
Reactor equipment status monitoring, furnace burner management system (BMS) discrete signal acquisition, distillation column limit switch detection, flare system safety monitoring signal collection.
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Power Generation Industry
Steam turbine auxiliary equipment status monitoring, boiler safety interlock switch signal acquisition, generator protection system discrete input monitoring, water pump and fan operation status feedback.
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Fire & Gas Detection Industry (FGS)
Gas detector switch signal collection, fire alarm contact input monitoring, hazardous gas leakage safety interlock signal acquisition.
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Chemical Processing & Metallurgy Industry
Smelting furnace safety interlock switch monitoring, production line conveyor position feedback, pressure relief valve status detection, hazardous material handling equipment safety signal collection.
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General High-Hazard Industrial Safety Control
All SIL safety-level discrete signal monitoring occasions, including limit switches, proximity sensors, relay contacts, emergency stop buttons and other field on/off signal acquisition for critical safety control systems.



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