ICS Triplex T8000 Series Modules T8830 Channel Analogue Input

Technical Dossier

Product Details And Specifications

ICS Triplex T8000 Series Technical Notes

The Evolution of T8000 Architecture

ICS Triplex introduced the T8000 platform in the late 1980s as a successor to earlier TMR architectures. The initial release established the core backplane bus topology and the triple-channel voting logic that defines the series. Through the 1990s, the platform expanded its I/O module range to accommodate the growing diversity of field instrumentation in refinery and power generation environments. Early modules such as the T8110 and T8120 established the analogue and digital I/O framework. The 2000s saw the introduction of enhanced communication adapters and higher-density I/O modules to reduce panel footprint. By the 2010s, ICS Triplex — operating under Rockwell Automation following acquisition — began transitioning customers toward the AADvance platform as the strategic successor. The T8000 series formally entered end-of-life status, though Rockwell Automation and authorized third-party suppliers continue to provide spare parts and repair services to support the large installed base. Compatibility between early and late T8000 modules is generally maintained at the backplane level, but firmware revisions and chassis generations must be verified before substitution.

T8000 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced modules within the ICS Triplex T8000 platform. Modules are classified by functional category.

Analogue Input Modules

• T8830: 8-channel analogue input, 4–20 mA / 1–5 V, TMR voting, field-proven in refinery DCS loops
• T8831: 8-channel analogue input with HART protocol support for smart field device integration
• T8832: 16-channel analogue input, high-density configuration for large I/O count applications
• T8110: Early-generation analogue input module, single-ended signal acquisition, legacy installations

Analogue Output Modules

• T8840: 8-channel analogue output, 4–20 mA, TMR output voting for final control element drive
• T8841: 8-channel analogue output with HART, supports valve positioner diagnostics

Digital Input Modules

• T8120: 32-channel digital input, 24 VDC, used for discrete field device status monitoring
• T8121: 32-channel digital input, 120 VAC, suited for high-voltage field signal environments
• T8122: 64-channel digital input, high-density, for large safety interlock systems

Digital Output Modules

• T8150: 16-channel digital output, relay type, for solenoid valve and shutdown device actuation
• T8151: 16-channel digital output, solid-state, high-speed switching for process control applications

CPU / Controller Modules

• T8310: TMR central processing unit, primary controller module for T8000 chassis
• T8311: Enhanced CPU module with expanded memory and faster scan cycle for complex logic

Communication & Network Modules

• T8403: Modbus RTU communication adapter, serial interface for legacy SCADA integration
• T8404: Ethernet TCP/IP communication module, OPC-DA server interface for DCS historian connectivity
• T8405: Profibus DP adapter, field device network integration for distributed I/O expansion

Power Supply Modules

• T8800: Redundant power supply module, 24 VDC output, hot-swap capable within live chassis
• T8801: High-capacity power supply, supports fully populated high-density I/O chassis configurations