Triconex 9671-810 - 8-Channel Analog Input Module for Tricon Safety Controller

Triconex 9671-810 – 8-Channel Analog Input Module for Tricon Safety Controller

In stock

Product Introduction:
The Triconex 9671-810 is an 8-channel analog input module designed for the Tricon safety instrumented system. This board acquires high-accuracy analog signals from field transmitters measuring critical process variables such as pressure, temperature, flow, and level. The “810” designation indicates 8 channels with 4-20mA input capability. A standout feature of this module is its HART (Highway Addressable Remote Transducer) protocol support, which allows the Tricon system to communicate digitally with smart field transmitters over the same 4-20mA wires used for the analog signal. This means the controller can read both the process variable and diagnostic data from the transmitter simultaneously. Like all Tricon I/O, this module is triple modular redundant.

Technical Specifications:
Board Type: Analog Input Module
Channel Count: 8 independent analog input channels
Input Type: 4-20mA (2-wire, loop-powered)
Resolution: 16-bit A/D conversion
Accuracy: +/- 0.1% of full scale
Linearity: +/- 0.05% of full scale
HART Protocol: Full HART 5/7 support for smart transmitter communication
Update Rate: 100ms per channel (simultaneous sampling)
Isolation: 250V RMS channel-to-channel and channel-to-ground
Burden Resistance: 250 Ohms internal (configurable)
Power Consumption: Approximately 4 Watts
Form Factor: Tricon I/O Carrier compatible module
Redundancy: Full TMR with automatic voting
Diagnostics: Per-channel status, wire fault, burnout detection, HART communication status

Functional Features:
HART Communication: Reads process variable, secondary variable, and device diagnostics from HART-enabled transmitters without additional wiring.
Simultaneous Sampling: All 8 channels are sampled at the exact same instant, preserving phase relationships for multi-variable calculations.
Cold Junction Compensation: Built-in cold junction compensation for thermocouple inputs when configured for TC mode.
Burnout Detection: Automatically detects if a transmitter wire has broken (open loop) or if the transmitter has failed, alarming the operator immediately.
Per-Channel Scaling: Each channel can be independently scaled from raw counts to engineering units (PSI, Deg C, GPM) via software.
TMR Voting: Three independent A/D converters per channel vote on every reading, eliminating single-point failures in the measurement path.