Allen‑Bradley 1771‑OFE2 Analog Output Module

The Allen‑Bradley 1771‑OFE2 is a multi‑channel analog output module for Allen‑Bradley PLC‑5 1771 I/O chassis system. It converts digital control signals from PLC‑5 controller into standard analog signals to drive field actuators and local display instruments.

This module features high‑precision digital‑analog conversion and channel isolation, resisting electromagnetic interference from industrial sites. It is a widely‑adopted spare part for maintenance and retrofitting of legacy PLC‑5 automation cabinets.

Main Specifications

• Brand: Allen‑Bradley; Model:1771‑OFE2; Type: Analog Output Module
• Applicable System: PLC‑5 series with 1771 back‑plane chassis
• Signal Type: Multi‑channel voltage / current analog output
• Function: Digital‑analog conversion, analog signal output for process control
• Installation: Slot‑mounted inside 1771 PLC rack
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing
• Certifications: CE, compliant with industrial PLC automation standards

Core Functions

• Receive digital control commands from PLC‑5 CPU and convert into standard analog output signals.
• Drive field valves, regulators and local meters for process adjustment and signal display.
• Channel isolation design improves anti‑interference capability under complex industrial conditions.
• Real‑time channel status detection supports fault diagnosis and abnormal alarm feedback.
• Backplane slot‑in structure allows quick replacement for on‑site maintenance work.
• Work with legacy AB programming software for output range configuration and calibration.

Application Scenarios

• Legacy production line control cabinets built on Allen‑Bradley PLC‑5 platform.
• Process regulating output units for chemical, metallurgy and water‑treatment industries.
• Retrofit and spare replacement of legacy 1771 series PLC automation platforms.
• Preventive maintenance and analog output channel fault repair projects.
• Spare parts inventory for automation integrators and engineering contractors.
• Global aftermarket spare supply for technical teams maintaining Allen‑Bradley industrial hardware.