Original ICS Triplex P8151B communication interface module for Trusted TMR safety control rack, SIL‑3 certified spare part.

Product Overview

P8151B is ICS TRIPLEX Trusted series communication interface module, serving as data gateway between TMR safety controller and external systems. It offloads communication tasks from main processor, implements data exchange with engineering station, DCS, SCADA and third‑party field equipment. Adopts galvanic‑isolated communication channels, supports multiple industrial protocols, satisfies SIL3 safety requirement. SmartSlot rack plug‑in structure, supports hot‑swap maintenance. Widely used as maintenance spare part for oil‑gas, petrochemical ESD and fire‑gas safety control cabinets.

Key Features

• Dual independent 10/100Mbps Ethernet ports for redundant network communication
• Four isolated serial ports supporting RS232 / RS422 / RS485 hardware interface
• Supports Modbus RTU, Modbus TCP, peer‑to‑peer Trusted system interconnection
• Reduces main processor communication burden, ensures deterministic safety logic operation
• Channel‑by‑channel electrical isolation, suppresses common‑mode and ground‑loop interference
• Front‑panel LED indicators, built‑in self‑diagnosis for fast fault location

• SmartSlot plug‑in design, supports hot‑swap without system shutdown

• 
  

Technical Specifications

• Brand: ICS TRIPLEX (Rockwell Automation)
• Model: P8151B
• Module Type: Communication Interface Module
• System Platform: Trusted TMR Safety Control System
• Communication: Dual Ethernet, 4×Isolated serial ports
• Supported Protocol: Modbus TCP, Modbus RTU, Trusted peer‑to‑peer
• Power Supply: 20‑32VDC, nominal 24VDC
• Safety Certification: SIL3
• Operating Temp: 0℃ ~ +60℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Plug‑in inside Trusted series rack

• 
  

Compatibility

Compatible with ICS TRIPLEX Trusted TMR safety rack. Communication parameter configuration, network and serial loop test required after replacement.