ICS Triplex T8000 Series Modules: T8230 Analog Input,

Technical Dossier

Product Details And Specifications

ICS Triplex T8000 Series: Comprehensive Module Range and Technical Overview

The ICS Triplex T8000 Series represents a core product line within the Trusted™ Safety System platform, developed by ICS Triplex (subsequently acquired by Rockwell Automation). This series has achieved widespread deployment across global heavy industries including petrochemical refineries, offshore oil & gas platforms, nuclear power generation facilities, and chemical processing plants. The T8000 architecture is designed to meet IEC 61508 SIL 3 and IEC 61511 requirements, making it a reference standard for high-integrity safety instrumented systems (SIS). Installed base spans facilities operated by major energy corporations across North America, Europe, the Middle East, and Asia-Pacific. The modular backplane architecture allows hot-swap replacement of I/O and communication modules without process shutdown, a critical operational requirement in continuous-process industries.

The Evolution of T8000 Series Architecture

The T8000 Series was introduced as part of the second-generation Trusted™ platform, succeeding the earlier T3000 and T4000 product lines. The original T8000 architecture employed a triple modular redundancy (TMR) design at the module level, with 2oo3 voting logic implemented in hardware. Early revisions used proprietary backplane communication at fixed baud rates with limited diagnostics visibility. Subsequent hardware revisions introduced enhanced self-diagnostics, expanded channel density, and improved EMC compliance to meet EN 61000 standards for industrial environments.

With the Rockwell Automation acquisition, the T8000 platform was integrated into the broader Allen-Bradley safety ecosystem, enabling co-existence with ControlLogix and GuardLogix controllers via gateway modules. However, the native T8000 backplane and module form factors remained unchanged, preserving backward compatibility with existing installed base. As of 2026, the T8000 Series is classified as a mature/end-of-life product line. Rockwell Automation has transitioned new SIS projects to the AADvance® and Pavilion8® platforms. Consequently, T8000 modules are no longer manufactured in volume, and procurement is dependent on authorized spare parts distributors and certified refurbishers. Long-term maintenance support for operational T8000 systems is the primary market driver for this series.

T8000 Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed modules within the ICS Triplex T8000 / Trusted™ platform. Modules are categorized by functional type.

Analog Input Modules

• T8230: 16-channel 4–20 mA analog input module, SIL 3 rated, TMR architecture
• T8231: 8-channel analog input module with HART protocol support, field-side isolated
• T8232: 16-channel analog input, high-density configuration, 0–10 V / 4–20 mA selectable
• T8233: Analog input module with enhanced diagnostics, supports thermocouple and RTD inputs

Analog Output Modules

• T8240: 8-channel 4–20 mA analog output module, SIL 3, loop-powered with open-circuit detection
• T8241: 8-channel analog output with HART pass-through, field-side isolated

Digital Input Modules

• T8110: 32-channel 24 VDC digital input module, TMR voting, high-speed scan
• T8111: 32-channel digital input, 120 VAC field voltage compatible
• T8112: 16-channel digital input module with extended diagnostics and line fault detection
• T8113: 32-channel digital input, 48 VDC, suitable for hazardous area installations

Digital Output Modules

• T8120: 16-channel 24 VDC digital output module, solid-state, SIL 3 rated
• T8121: 8-channel relay output module, 120/240 VAC, mechanical relay with diagnostics
• T8122: 16-channel digital output, high-current capacity, short-circuit protected

Controller / CPU Modules

• T8310: Trusted™ TMR controller module, primary CPU, supports IEC 61131-3 programming
• T8311: Redundant controller module, hot-standby configuration, Ethernet supervisory port

Communication & Gateway Modules

• T8431: Modbus RTU/TCP communication module, serial and Ethernet dual-port
• T8432: PROFIBUS DP gateway module, supports up to 125 slave devices
• T8433: OPC-UA communication module, supervisory network integration

Power Supply Modules

• T8800: Redundant 24 VDC power supply module, 20 A output, hot-swap capable
• T8801: 120/240 VAC input power supply module, dual redundant configuration

Sourcing Hard-to-Find & Obsolete T8000 Series Parts

As the T8000 Series has entered end-of-life status, OEM factory supply of new modules has ceased. DriveKNMS maintains a dedicated inventory of tested T8000 spare parts sourced through authorized channels, including decommissioned plant equipment and certified refurbishment programs. For operators of existing T8000-based safety systems, DriveKNMS provides lifecycle extension support covering the following scenarios: emergency replacement of failed modules to minimize unplanned downtime; scheduled maintenance stock replenishment for planned turnaround events; and long-term spares holding agreements for facilities with 5–15 year operational horizons before platform migration. All sourced T8000 modules are verified against original ICS Triplex part numbers and firmware revision requirements prior to dispatch. Cross-reference support is available for identifying equivalent modules across T8000 hardware revisions.

Quality Control for the T8000 Series Range

The T8000 platform employs a complex TMR backplane bus architecture that requires specialized test procedures beyond standard functional verification. DriveKNMS applies the following quality control protocol to all T8000 modules processed through its facility: (1) Visual inspection for backplane connector pin integrity, capacitor condition, and conformal coating status. (2) Powered functional test using a dedicated T8000 test chassis replicating the operational backplane environment. (3) Channel-level verification for all I/O modules — each analog channel is tested across the full 4–20 mA range; each digital channel is exercised through open and closed states. (4) TMR voting logic verification to confirm correct 2oo3 output behavior under simulated single-channel fault conditions. (5) Communication module testing includes protocol handshake verification and data integrity checks under sustained load. (6) Burn-in period of minimum 48 hours under operational conditions prior to release. All test records are retained and available upon request with each shipment.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.