Description
| Product model | T8110B |
| Manufacturer | ICS Triplex (now part of GE Automation & Controls) |
| Product category | Central Processing Unit (CPU) Controller |
| Platform | Triconex Safety Instrumented System (SIS) |
| Redundancy architecture | Triple Modular Redundancy (TMR) |
| Processor type | High-performance 32-bit dual-core (Dual RISC processors per node) |
| Memory capacity | 32 MB user program memory, 32 MB system memory (non-volatile) |
| Execution speed | Up to 0.08 microseconds per logic instruction |
| I/O expansion capability | Supports up to 128 I/O chassis via DMR (Dual Modular Redundancy) communication |
| Communication interfaces | Dual Ethernet (10/100 Mbps), RS-232, and TriBus ports |
| Operating temperature | 0°C to 60°C (32°F to 140°F) |
| Certifications | TÜV-certified for SIL 3 compliance per IEC 61508 |
| Installation method | 19-inch rack mount, standard 5-slot Tricon chassis (Model 8011, 8012, etc.) |
Product introduction
The ICS Triplex T8110B is a high-availability, safety-certified central processing unit (CPU) module engineered for mission-critical process safety applications within the Triconex safety instrumented system (SIS) platform. As a core component of the Triconex TMR architecture, the T8110B delivers unparalleled fault tolerance and continuous operation in hazardous environments across oil and gas, chemical, petrochemical, and power generation industries. Designed with Triple Modular Redundancy (TMR), the ICS Triplex T8110B independently executes logic in three separate processor branches, compares results in real time, and automatically masks failures without interrupting control—ensuring uninterrupted safety and process integrity.
Deployed within the robust Tricon chassis (e.g., Models 8011 or 8012), the T8110B supports complex safety logic execution with high-speed scanning and deterministic response times. It integrates seamlessly with Triconex I/O modules and is programmable via TriStation 1131, supporting all five IEC 61131-3 languages. The ICS Triplex T8110B is TÜV-validated for SIL 3 applications, making it a trusted solution for emergency shutdown (ESD), fire and gas (F&G) protection, turbine control, and burner management systems. With dual Ethernet and serial communication ports, the T8110B enables secure integration with DCS, SCADA, and asset management systems, providing real-time diagnostics and remote monitoring capabilities.
ICS TRIPLEX T8110B
Core advantages and technical highlights
Triple Modular Redundancy with fault-tolerant design:
The ICS Triplex T8110B leverages true TMR architecture, where three independent processor modules execute the same control logic simultaneously. Voting occurs at both the input and output stages, ensuring that a single-point failure in any CPU does not affect system performance. This intrinsic fault tolerance allows the T8110B to maintain operation even during hardware faults, software errors, or communication loss in one leg—critical for processes where unplanned shutdowns pose safety or financial risks.
High-speed processing and deterministic execution:
Equipped with dual RISC processors per node, the T8110B achieves an execution speed as fast as 0.08 microseconds per logic instruction. This enables rapid response to safety events, minimizing process downtime and enhancing operational efficiency. The deterministic scan cycle ensures predictable timing behavior, essential for coordinating safety actions across large-scale industrial plants.
Scalability and seamless integration:
The ICS Triplex T8110B supports up to 128 I/O chassis via DMR links, allowing it to scale from small burner management systems to enterprise-wide safety networks. Its compatibility with standard Triconex I/O modules (discrete, analog, specialty) and communication protocols (Modbus, OPC, Ethernet/IP) ensures smooth integration into heterogeneous control environments. When used in conjunction with TriStation 1131, the T8110B benefits from advanced diagnostics, online editing, and version control—enhancing engineering productivity.
Built-in cybersecurity and remote accessibility:
With dual Ethernet ports supporting redundant network configurations, the T8110B enables secure remote access for monitoring and maintenance. Role-based login, secure firmware updates, and audit logging help meet modern industrial cybersecurity standards (e.g., IEC 62443). The ICS Triplex T8110B also features non-volatile memory to retain programs during power loss, ensuring fast recovery and system continuity.
Typical application scenarios
The ICS Triplex T8110B is the controller of choice in high-risk industrial environments where personnel safety, environmental protection, and asset integrity are paramount. In offshore oil and gas platforms, the T8110B serves as the heart of emergency shutdown (ESD) and fire & gas (F&G) systems, continuously monitoring pressure, temperature, gas detection, and flame sensors. Its TMR architecture ensures that even if one CPU fails due to harsh marine conditions or electrical surges, the safety function remains fully operational.
In onshore refineries and chemical plants, the ICS Triplex T8110B manages complex interlocks and batch sequencing for reactors and distillation units. It executes SIL 3-rated logic to prevent overpressure, runaway reactions, or toxic releases. The T8110B’s fast scan rate and deterministic behavior make it ideal for turbine overspeed protection and compressor anti-surge control, where millisecond-level response can prevent catastrophic equipment damage.
Power generation facilities use the ICS Triplex T8110B in boiler protection and burner management systems (BMS), ensuring safe light-off and flame monitoring in coal, gas, and combined-cycle plants. Its integration with DCS via Modbus TCP allows operators to visualize safety system status without compromising isolation. Additionally, the T8110B is frequently deployed in retrofit projects to replace legacy safety PLCs, offering enhanced performance while maintaining compatibility with existing I/O infrastructure.
Related model recommendations
T8100: Predecessor CPU model to the T8110B, used in earlier Tricon systems; the T8110B offers improved processing speed and memory.
T8112: Enhanced version of the T8110B with increased memory and support for newer TriStation software versions; suitable for large-scale applications.
T8300: High-capacity TMR main processor with expanded I/O and communication capabilities, considered a scalable upgrade from the T8110B.
8011 Chassis: 5-slot chassis designed to house the T8110B and associated I/O or communication modules.
T8401: Dual-port Ethernet communication module that complements the T8110B by enabling redundant network connectivity.
T9401B: Discrete input module commonly used with the T8110B for emergency pushbuttons and limit switches in safety circuits.
T1025: Analog input module for integrating 4–20 mA signals into systems controlled by the T8110B.
TriStation 1131: Engineering workstation software used to configure, program, and commission the T8110B and the entire Triconex system.
ICS TRIPLEX T8110B
Installation, commissioning and maintenance instructions
Installation preparation:
Before installing the ICS Triplex T8110B, ensure the Tricon chassis (e.g., Model 8011) is powered off and properly grounded. The T8110B must be installed in the primary CPU slot (Slot 1) and, for full TMR, mirrored in Slots 2 and 3 with identical modules. Use ESD-safe practices during handling. Verify that all TriBus cables are securely connected between CPUs and that the chassis keying switch is set correctly. Field wiring should be completed and inspected prior to power-up.
During commissioning, load the control logic via TriStation 1131 using a secure connection. Perform a consistency check across all three CPUs to ensure synchronization. Validate I/O mapping and execute a full loop test to confirm signal integrity. Enable online monitoring to observe voting status and diagnostic alarms. The T8110B supports hot insertion, allowing replacement during runtime if a fault is detected.
Maintenance suggestions:
Regularly review diagnostic logs and CPU health indicators (e.g., “Major Fault”, “Minor Fault” LEDs) on the T8110B. Use TriStation 1131 to monitor voter discrepancies, communication errors, or memory utilization. Back up the application logic and configuration files quarterly or after any change. Replace failed T8110B modules promptly using pre-programmed spares to minimize exposure time. Avoid firmware upgrades in critical operations unless necessary and always test in a simulation environment first. Store spare T8110B units in anti-static bags in a temperature-controlled environment.
