Description
The ICS Triplex T8110B is the main processing unit for the Trusted™ Triple Modular Redundant (TMR) system. It is designed to provide maximum safety and availability for critical control applications, ensuring that no single point of failure can lead to a loss of the safety function or an unnecessary process trip.
Product Parameters (Datasheet)
- Model Number: T8110B
- Module Type: TMR Processor (Main Controller)
- Architecture: Triple Modular Redundant (3-2-0 voting logic)
- Processor Speed: High-performance Motorola PowerPC
- Memory: 32 MB Flash (Firmware/Application) / 32 MB DRAM
- Scan Time: Typically 2ms to 10ms (Logic dependent)
- Communication: * 2x RS-422/485 Configurable Serial Ports
- Dedicated Inter-module Bus interface
- Peer-to-peer Link interface
- Input Voltage: 20V DC to 32V DC (Dual redundant power feeds)
- Operating Temp: -5°C to +60°C (23°F to 140°F)
- Certification: SIL 3 (IEC 61508) and NFPA 72/85/86

ICS Triplex T8110B

ICS Triplex T8110B

ICS Triplex T8110B
Country of Origin
This processor was engineered and manufactured by ICS Triplex (now part of Rockwell Automation) in the United Kingdom.
Application Fields
The T8110B is the standard for high-integrity safety instrumented systems (SIS):
- Emergency Shutdown (ESD): Immediate and safe shutdown of oil and gas facilities during emergencies.
- Fire and Gas (F&G): Monitoring detectors and triggering suppression systems in hazardous zones.
- Burner Management Systems (BMS): Ensuring safe startup and operation of industrial boilers and furnaces.
- Turbine Control: Managing overspeed protection and critical trip logic for power turbines.
- HIPPS: High-Integrity Pressure Protection Systems for pipeline safety.
Product Usage Instructions
- Chassis Placement: The T8110B must be installed in the designated Controller Slot of a Trusted Controller Chassis. Ensure the module is fully seated and the top and bottom levers are locked.
- Redundancy Link: For TMR operation, the processor communicates with its peer modules across the backplane. No external cabling is required for the internal “voting” mechanism.
- Programming: Systems are configured using the Trusted Toolset software. Control logic is typically written in IEC 61131-3 compliant languages (Ladder, FBD, or ST).
- Diagnostics: Monitor the “Active,” “Standby,” and “Fault” LEDs on the front panel. In a healthy TMR state, the processors will show synchronized status.
- Firmware Updates: Ensure all processors in a redundant set are running the same firmware revision to maintain synchronization.
Product Technical Description
Technically, the T8110B is a hardware-implemented fault-tolerant controller. Inside the module, three independent processing “slices” execute the same logic in parallel. The results are compared via a Hardware Majority Voter (HMV). If one slice disagrees with the other two, it is out-voted, and the system continues to operate correctly using the remaining two slices. This provides a “fault-masking” capability that allows the process to stay online even during a hardware failure. The “B” revision of the T8110 features improved processing efficiency and enhanced diagnostic coverage compared to the legacy “A” version.
Q&A (Common Questions)
Q: What is the difference between T8110B and T8111C? A: The T8110B is the main processor, while the T8111C is often an interface or communications module used in conjunction with the processor. Both are part of the Trusted family but perform different roles in the architecture.
Q: Can a single T8110B module provide SIL 3 protection? A: Yes. Because the TMR architecture is contained within the module design, a single T8110B is internally redundant and certified for SIL 3 applications.
Q: Why is my “Healthy” LED flashing? A: A flashing healthy LED usually indicates a “forced” variable in the logic or a non-fatal diagnostic warning. Check the System Event Logger in the Trusted Toolset for the specific code.
Q: Is the T8110B compatible with legacy ICS Triplex Regent systems? A: No. The Trusted series is a different architecture than the Regent series. While both are TMR, they utilize different chassis, I/O modules, and software.
Similar Model Recommendations
- ICS Triplex T8403 (TMR Digital Input Module)
- ICS Triplex T8431 (TMR Analog Input Module)
- ICS Triplex T8451 (TMR Digital Output Module)
- ICS Triplex T8151B (Communications Interface)
- ICS Triplex T8311 (Trusted Expander Interface)
For technical support or to procure the ICS Triplex T8110B, please contact our safety system specialists.
