ICS TRIPLEX T3470A Analog Output Module

Technical Specifications

Model:T3470A

Brand:ICS TRIPLEX

Product type:TMR analog output module

System series:Trusted T8000 SIS

Bus type:Triple redundant parallel backplane bus

Compatible modules:Trusted processor boards,AI/DI input modules,backplane base units,redundant power supply

Redundancy:TMR triple modular redundant hot swap architecture

Power bus:5V DC,24V DC power supply

Operating temperature:0~+60℃

Relative humidity:5~95% non-condensing

Weight:4.85kg

Certification:CE,TÜV,SIL3

System compatibility

This output hardware belongs to ICS TRIPLEX Trusted SIS safety instrumented system and is installed inside Trusted rack cabinet. It receives validated safety commands from TMR processor module and outputs 4-20mA analog signals to field control valves and process actuators. It communicates with system engineering workstation,widely used in oil & gas,petrochemical and chemical plants for ESD emergency shutdown and fire & gas safety protection.

Function

T3470A serves as the safety analog control output unit of Trusted TMR SIS. It converts safety logic commands into 4-20mA analog signals for field process equipment. It continuously runs per-channel self-diagnosis to detect open circuit,short circuit and output circuit hardware failure in real time.

Installation

Insert the module vertically into dedicated I/O slot of Trusted SIS rack. Complete field control valve wiring and backplane bus connection,verify channel output status and fault diagnosis via Trusted Workbench engineering software.

Interface

‑Gold finger connector for triple redundant backplane bus communication

‑Field analog output terminal block for valve connection

‑Onboard TMR voting and D/A conversion circuit

‑LED indicators for channel running,alarm and fault prompt

Circuit feature

Conformal coated multi-layer PCB design,built-in surge and overvoltage protection circuit. Triple channel hardware voting design,fully compliant with SIL3 functional safety hardware specifications.

Feature

T3470A is a spare analog output board for ICS TRIPLEX Trusted SIS system. Common faults include D/A conversion circuit damage,channel detection chip failure and field wiring fault. Confirm rack slot definition and firmware compatibility before replacement.

Diagnostic

When channel open circuit,short circuit or hardware breakdown is detected,the module will trigger fault alarm and upload diagnostic messages to safety workstation.

Built‑in function

Safety analog control signal output and channel hardware self-diagnosis for Trusted TMR safety rack,used as SIS analog output spare replacement.

Product Brief

T3470A is ICS TRIPLEX Trusted SIL3 8-channel 4-20mA analog output module,supporting TMR triple modular redundant architecture. Verify rack compatibility before ordering. ESD anti-static protection must be followed during handling installation.