ICS TRIPLEX T8431C Trusted TMR Analog Input Module

The T8431C Series C is a Trusted Triple Modular Redundant (TMR) Analog Input Module by ICS Triplex, a part of Rockwell Automation. Designed for critical applications, it provides fault-tolerant and high-precision analog input processing with advanced safety and reliability features.

Key Features and Specifications

General Details

Manufacturer: ICS Triplex
Product Number: T8431
System Supply Voltage Range: 20 to 32V DC
Number of Inputs: 40 Channels
Circuit Type: Fully triplicated with optional line monitoring for fault tolerance.
Power Consumption: 15 – 18W

Input Specifications

Input Current Range: 0–22mA
Input Voltage Range: 0–6V DC
User-Defined Thresholds: 4 adjustable thresholds.
Resolution: 3.9µA (1/256mA)
Safety Accuracy: ±1% of full scale.
Calibration Accuracy: 0.03%

Performance

Sample Update Time: 0.5ms
Event Resolution: 1ms
Time-stamp Accuracy: ±0.5ms
Self-Test Interval: 2 minutes

Environmental Specifications

Operating Temperature: -5°C to 60°C (23°F to 140°F)
Non-operating Temperature: -25°C to 70°C (-13°F to 158°F)
Temperature Change: 0.5°C/min
Operating Humidity: 10–95% RH non-condensing

Electrical Isolation

Field Common Isolation:
- Sustained Working: ±250V DC
- Maximum Withstanding: ±2.5kV DC
Channel-to-Channel Crosstalk: -40 to -60dB

Physical Dimensions

Height: 266mm (10.5 inches)
Width: 31mm (1.2 inches)
Depth: 303mm (12 inches)
Weight: 1.149kg (2.5lbs)

Additional Features

Intrinsic Safety: Requires external barriers.
Sequence of Events: High-resolution event recording with a real-time clock resolution of 100µs.
Recommended Calibration Interval: Every 2 years for optimal accuracy.

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