Triconex HD8311 Digital Output Module

Product Description

The Triconex HD8311 is a TMR digital output module for Schneider Tricon SIS safety instrumented system. It adopts triple modular redundant 2oo3 voting architecture, used to transmit safety control signals to field solenoid valves, relays and alarm devices. It supports continuous on-board diagnostics for load, short circuit and open circuit faults, widely used in ESD, fire & gas protection and turbine trip safety loops requiring SIL3 safety level.

Features

• TMR triple modular redundancy design, 2-out-of-3 voting logic, single fault tolerant
• Multiple independent output channels, built-in per-channel load and circuit diagnostic function
• Hot-swappable inside Tricon rack, communicates via Tricon TriBus backplane
• LED indicators for module health, run, fault and channel status
• IEC 61508 SIL3 certified, FMEDA safety data available for safety loop verification
• High EMC and anti-vibration design, suitable for harsh industrial cabinet environments
• Matched with dedicated termination panel for field wiring connection
• Supports online fault reporting to Triconex TriStation software

Application Scenarios

• Oil & gas, refinery and chemical plant ESD emergency shutdown systems
• Fire and gas (F&G) safety protection system solenoid drive and alarm output
• Power plant steam turbine, gas turbine safety trip and interlock control
• Offshore platform safety instrumented control and compressor protection
• Tricon SIS rack expansion, spare parts replacement and safety system retrofit

FAQ

Q: What platform does HD8311 belong to?
A: It is an I/O module for Triconex Tricon TMR SIS safety system.

Q: What software is used for configuration?
A: TriStation is the official configuration and diagnostic software for Triconex hardware.

Q: What is its safety level?
A: SIL3 certified according to IEC 61508 for safety critical loops.

Q: Is this module still in production?
A: Legacy Tricon HD series I/O is discontinued; supply is mainly original surplus and fully tested refurbished spare parts.