Description
- Product Parameters
- Model Number: T8110B
- Series: Trusted TMR (Triple Modular Redundant)
- Architecture: Fault-tolerant 3-2-0 hardware voter logic
- Processor Type: High-speed industrial RISC processors
- Memory: High-capacity ECC RAM and Flash for application logic
- Communication: Integrated Peer-to-Peer and Host links
- Scan Time: Dedicated high-speed processing for safety-critical loops
- Diagnostics: Comprehensive self-testing and module health monitoring
- Compliance: SIL 3 (IEC 61508) and NFPA 72/85/FB compatible
The T8110B is the core processing unit for the Rockwell Automation Trusted system, providing high-integrity control for safety-instrumented functions (SIF). Utilizing a Triple Modular Redundant (TMR) architecture, this module incorporates three isolated processing “slices” that perform identical logic and vote on the results, ensuring that a single hardware failure does not compromise the safety or availability of the process. The “B” revision features enhanced processing power and memory management, specifically designed for large-scale Emergency Shutdown (ESD) and Fire and Gas (F&G) systems where millisecond-level response times and absolute reliability are mandatory.
Comparison with Similar Models
The T8110B is the central logic engine of the Trusted rack and is distinguished by its redundancy level and hardware revision:
- T8110B vs. T8111 (Communications Interface): While the T8110B is the “brain” that executes the safety logic and controls the I/O, the T8111 acts as the communication gateway. The T8110B handles the actual voting and decision-making, whereas the T8111 manages external data exchange with DCS or SCADA systems.
- T8110B vs. T8110 (Legacy Revision): The T8110B is a hardware upgrade over the original T8110. It offers better heat dissipation and improved internal bus speeds. In most systems, the “B” version is backward compatible but provides a more stable platform for newer firmware releases required by the latest engineering workbenches.
- T8110B vs. ControlLogix 5580S (GuardLogix): The GuardLogix series is a 1-out-of-2 (1oo2) safety architecture, while the T8110B is a true 2-out-of-3 (2oo3) TMR processor. This makes the T8110B superior for high-availability applications where the system must continue running even if one processor fails, whereas some 1oo2 systems may trigger a safe-state shutdown upon a single component fault.
