ICS Triplex T8480 – Trusted TMR Analog Output Module

Overview

The ICS Triplex T8480 is a Trusted TMR (Triple Modular Redundant) analog output module designed for safety-critical applications. It provides exceptional reliability and availability in demanding industries such as oil and gas, petrochemicals, and power generation. With its TMR architecture, the T8480 ensures system integrity by utilizing three independent channels that allow for fault detection and redundancy.

This module offers 4-20 mA analog output signals, making it ideal for controlling field devices like valves and actuators. Furthermore, it is equipped with comprehensive diagnostic capabilities, enabling proactive maintenance and ensuring optimal operational efficiency.

Key Features

TMR Redundancy: The T8480 incorporates three independent output channels for redundancy, ensuring uninterrupted system operation.
High-Precision Output: The module provides highly accurate output signals with a +0.1% accuracy of span, ideal for precision control.
Fast Update Rate: The T8480 features a fast 20 ms update rate per channel, ensuring quick signal processing for dynamic control systems.
Wide Operating Temperature Range: With a temperature range of -40°C to +75°C, this module performs reliably in harsh environments.
Comprehensive Diagnostics: Built-in diagnostics allow for continuous monitoring and early fault detection, optimizing system performance.
Ethernet & Modbus TCP/IP Communication: Supports industry-standard communication protocols, making integration into existing systems seamless.
Safety Integrity Level (SIL): Certified to SIL 3, the T8480 ensures compliance with high safety standards for critical applications.

Technical Specifications

Specification	Details
Model Number	T8480
Manufacturer	ICS Triplex
Module Type	Trusted TMR Analog Output Module
Number of Channels	40 TMR Output Channels
Output Range	0-20 mA or 4-20 mA
Accuracy	+0.1% of span
Update Rate	20 ms per channel
Power Supply	24 VDC
Operating Temperature	-40°C to +75°C
Communication Interface	Ethernet, Modbus TCP/IP
Safety Integrity Level (SIL)	SIL 3 Certified
Field Voltage Range	18V DC to 32V DC
Maximum Withstanding Voltage	-1V DC to +36V DC
Dimensions	16 cm x 16 cm x 12 cm (6.3 in x 6.3 in x 4.7 in)
Weight	0.8 kg (1.76 lbs)

Power Ratings

Power Rating	Details
Field Supply Voltage	18V DC to 32V DC
Power Dissipation	System Supply: 28 W, Backplane (IMB): 22 W
Maximum Current (Field Supply)	0.9 A
Leakage Current (Output Off)	350 μA max
Standby Swap Bump Fault	+350 μA max for 7 sec, ±10 mA max for 50 ms

Performance

Current Rating (Continuous): Recommended output current ranges from 1 mA to 22 mA.
Calibration Accuracy: +0.1% at +25°C and +0.25% from 0°C to +60°C.
Bump Step Response Time: The module responds to a 1 mA to 20 mA step change in <50 ms.

Additional Features

Short Circuit Protection: The T8480 protects its outputs from short circuits, supporting up to 22 mA into 0Ω.
Hot Swap: The T8480 supports hot-swapping without interrupting the system’s operation, ensuring minimal downtime.