ICS TRIPLEX T8191
Manufacturer: ICS TRIPLEX (Rockwell Automation)
Part No: T8191
Type: Trusted TMR Communication & I/O Shield Module
Status: High‑reliability interface for safety‑critical systems
1. General Description
The ICS TRIPLEX T8191 is a single‑slot, high‑integrity communication and I/O shield module for the Trusted TMR safety controller platform. It acts as a dedicated gateway between T8100‑series controller chassis and external networks/devices, supporting redundant serial links, Modbus Master, and IRIG‑B time synchronization. Installed at the rear of the chassis, it provides full EMC shielding and fault‑tolerant connectivity for both active and standby processors, ensuring data integrity and high availability in SIS/ESD applications.
2. Key Specifications
• Architecture: Triple Modular Redundancy (TMR), SIL 3/SIL 4 compliant
• Connectors: Dual 48‑way DIN41612; 2×RS422/485 (2/4‑wire configurable)
• Communication: Modbus RTU/TCP Master, IRIG‑B (002/122) time sync
• Features: EMC‑shielded, redundant processor links, hot‑swap capable
• Power: 24VDC; Operating Temp: -40°C to +70°C
• Dimensions: 160×190×128mm; Weight: ~0.8–0.84kg
• Safety: TÜV‑certified, black‑channel communication, 32‑bit CRC
3. Part Number Definition
• ICS TRIPLEX: Rockwell’s safety TMR control brand
• T8191: Trusted TMR communication & shield module (single‑slot)
4. Typical Applications
• Safety Instrumented Systems (SIS) & Emergency Shutdown (ESD)
• Oil, gas & petrochemical plant safety interlocks
• Power generation (thermal/nuclear) safety control
• High‑availability process control & fault‑tolerant communication
ICS TRIPLEX © T8191 TMR Communication & I/O Shield Module
