Original ICS TRIPLEX T8110B Processor Module Spare

The Original ICS TRIPLEX T8110B Processor Module Spare is the main safety processor of the Trusted® TMR (Triple Modular Redundancy) safety system (Rockwell Automation). A single T8110B contains three identical processors running in parallel with 2oo3 majority voting, providing fail-safe, fault-tolerant execution for SIL 3 safety applications in the T8100 processor chassis.

Key Features

• Triple Modular Redundancy: three identical processors in one module with real-time 2oo3 voting
• Hardware Implemented Fault Tolerance (HIFT) — no single point of failure
• Continuous background self-diagnostics (hardware and memory testing)
• Hot-swap support via the companion processor slot in the T8100 chassis
• 100 MHz processor clock, 80 W maximum load
• Programmed with the Trusted Toolset (IEC 61131-3 compliant)
• Certified for ordinary, hazardous, ATEX, and IECEx locations
• TÜV-certified to IEC 61508 SIL 3

Technical Specifications

• Type Designation: T8110B
• Product Type: Trusted TMR main safety processor
• Architecture: 3 × identical processors, 2oo3 voting, HIFT
• Supply Voltage: 20–32 V DC (from T8100 chassis backplane)
• Maximum Load / Heat Dissipation: 80 W
• Processor Clock: 100 MHz
• Chassis Compatibility: T8100 Processor Chassis (dedicated slot + companion spare slot)
• I/O Interface: Triple-redundant Inter-Module Bus (to Trusted I/O modules)
• Programming: Trusted Toolset (IEC 61131-3)
• Diagnostics: Continuous background self-test; 1 ms Sequence-of-Events recording (per Trusted system features)
• Safety Level: SIL 3 (IEC 61508, TÜV)
• Certifications: Ordinary / HazLoc / ATEX / IECEx (Trusted 8000 series)
• Dimensions: approx. 266 × 303 × 93 mm (H×D×W); approx. 2.9 kg (service-note reference values)
• Origin: United Kingdom (ICS Triplex heritage)

Installation Notes

1. De-energize the T8100 backplane or confirm the area is non-hazardous before inserting or removing the module (arcing risk in hazardous locations).
2. Install the T8110B into its dedicated processor slot in the T8100 chassis; seat the high-density backplane connector fully and secure the retaining screws.
3. A companion processor slot is provided for a spare module — fit a blanking plate (T8191 / T8193) in unused slots per the certified configuration.
4. Supply 20–32 V DC via the chassis backplane; the T8270 fan trays must be running (mandatory cooling).
5. Configure and download the application with the Trusted Toolset; run the full self-test and verify 2oo3 voting health before placing the safety function in service.
6. For module replacement, observe ESD precautions and confirm the spare’s firmware build matches the system compatibility guideline (ICSTT-TD001).

Common Questions

What does “TMR” mean in the T8110B?

Triple Modular Redundancy — the module contains three identical processors executing the same logic in parallel; a 2oo3 voting mechanism masks any single faulty channel, and the module degrades safely (3-2-0 pattern) without tripping the process.

Can the T8110B be used in an expander chassis?

No. The T8110B is the main processor for the T8100 processor chassis. Expander chassis (T8300) use the T8310 Expander Processor / T8311 Expander Interface instead.

Is the T8110B hot-swappable?

Yes — the T8100 chassis includes a companion processor slot specifically to allow replacement of a faulty processor without disassembling the system; follow the hazardous-area power-off rules when applicable.

What voltage does the module require?

20–32 V DC supplied from the chassis backplane (24 V nominal); maximum load and heat dissipation 80 W.