Name: ICS Triplex T7488 | Monitored Guarded Output Module - XINYEDA
Brand: ICS Triplex
SKU: ICS Triplex T7488

Description

T7488: Product Overview

The ICS Triplex T7488 is a monitored guarded output module designed for safety-critical applications in industrial automation systems. As part of the Trusted TMR platform, this module plays a critical role in safety instrumented systems by providing reliable digital output control for emergency shutdown systems, fire and gas detection systems, and process safety applications.

The module handles digital output signals to field devices such as solenoid valves, motor starters, and shutdown actuators. Each of the 16 output channels operates independently with built-in monitoring circuitry that continuously verifies the health of both the module’s internal components and the connected field wiring. This monitoring capability allows the system to detect faults before they can compromise safety functions.

Belonging to the Trusted TMR platform, the T7488 benefits from a fully triplicated architecture that provides fault tolerance through three independent processing legs. This design ensures that a single component failure does not cause a dangerous failure of the safety function, making it suitable for Safety Integrity Level 3 applications as certified by TUV Rheinland.

ICS Triplex T3484

T7488: Technical Specifications

Model Number: T7488

Manufacturer: ICS Triplex

Product Type: Monitored Guarded Output Module

Number of Channels: 16 digital outputs

Output Current: 2A per channel

Output Voltage: 250V AC/DC

Power Supply: 24 VDC

Operating Temperature: 0°C to 60°C

Storage Temperature: -40°C to 85°C

Humidity: 0 to 95% non-condensing

Isolation: 2500V minimum

Safety Certification: SIL3 per IEC 61508

Dimensions: 320 mm x 32 mm x 257 mm

Weight: 1.8 kg

Core Features & Customer Value

Triple Modular Redundant Architecture: The T7488’s TMR design provides three independent processing legs that vote on output decisions. For customers, this means the system can tolerate two simultaneous faults without causing a dangerous failure, significantly reducing the risk of spurious trips and unplanned downtime. This architecture delivers the highest availability among SIL3-rated safety systems, ensuring continuous operation even during component failures.

Continuous Output Monitoring: Each output channel includes built-in diagnostics that monitor both the module’s internal circuitry and the connected field wiring. This feature allows engineers to detect developing faults before they impact system safety, enabling proactive maintenance scheduling rather than reactive repairs. The module can identify open circuits, short circuits, and load faults, providing detailed diagnostic information through the front panel LEDs and system software.

Flexible Configuration and Integration: The T7488 supports both AC and DC field devices with a wide voltage range up to 250V. This flexibility allows engineers to standardize on a single module type across different applications, reducing spare parts inventory and simplifying maintenance procedures. The module’s hot-swappable design enables replacement without system shutdown, minimizing production losses during maintenance activities.

ICS Triplex T3484

Typical Applications

The T7488 is extensively deployed in safety-critical applications across the oil and gas, petrochemical, and power generation industries. In offshore platforms and onshore processing facilities, this module forms the backbone of emergency shutdown systems, where it controls critical shutdown valves and process isolation devices. The module’s SIL3 certification and TMR architecture ensure that shutdown commands are executed reliably even in the presence of component failures or harsh environmental conditions.

In fire and gas detection systems, the T7488 activates fire suppression systems, emergency ventilation, and alarm systems when hazardous conditions are detected. The module’s fast response time ensures that safety functions are executed within the required safety time constraints. In power generation plants, particularly combined-cycle and nuclear facilities, the module provides protection functions for turbine overspeed protection, boiler safety systems, and reactor protection systems.

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