Allen‑Bradley 1771‑CAN CANbus Communication Module

The Allen‑Bradley 1771‑CAN is a CANbus communication interface module for PLC‑5 1771 I/O chassis system. It establishes CAN‑bus field‑bus link, realizing data exchange between PLC controller and field CAN‑bus peripheral devices.

This module follows standard CAN bus protocol, provides isolated communication channel for industrial field‑bus networking. It serves as key spare part for maintenance, upgrade and retrofitting of legacy Allen‑Bradley PLC‑5 automation systems.

Main Specifications

• Brand: Allen‑Bradley; Model:1771‑CAN; Type: CANbus Communication Module
• Applicable System: PLC‑5 series with 1771 backplane chassis
• Communication Protocol: Standard CAN‑bus field bus protocol
• Function: Field‑bus data transmission, protocol conversion and device interconnection
• Installation: 1771 backplane slot mounting inside PLC rack
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing
• Certifications: CE, compliant with industrial PLC automation standards

Core Functions

• Complete high‑speed data interaction between PLC‑5 controller and CAN‑bus field devices.
• Process sending and receiving of process data, status feedback and remote commands.
• Isolated communication interface improves anti‑interference performance for industrial site.
• Support bus diagnostic function for checking communication status and fault location.
• Backplane hot‑swap capable for convenient on‑site replacement during maintenance.
• Work with AB programming software for bus configuration, debugging and system commissioning.

Application Scenarios

• Legacy production line automation cabinets using Allen‑Bradley PLC‑5 control platform.
• Manufacturing, metallurgy and water‑treatment CAN‑bus field‑bus control systems.
• Retrofit and spare replacement of legacy 1771 series PLC automation platforms.
• On‑site equipment overhaul and communication fault repair projects.
• Spare parts inventory for automation integrators and engineering contractors.

• Global aftermarket spare supply for technical teams maintaining Allen‑Bradley industrial hardware.