Description:

The Allen Bradley 1771-OFE1 Analog Output Module is used in PLC-5 industrial control systems for converting digital signals into precise analog voltage outputs. Commonly installed in Allen-Bradley 1771 I/O chassis within PLC-5 systems used in process control, manufacturing, and automation environments. Maintenance teams, OEMs, and system integrators use this module for system control, retrofit, or replacement of legacy analog output modules.

Applications:

The Allen Bradley 1771-OFE1 is designed for industrial process control applications requiring accurate analog voltage output signals. It is widely used for controlling variable frequency drives (VFDs), control valves, actuators, and other field devices in manufacturing plants, water treatment facilities, and process industries. With its high-resolution output and isolated channels, it ensures reliable signal transmission and precise control in automation systems.

Technical Specifications:

• Manufacturer: Allen-Bradley (Rockwell Automation)
• Model / Part Number: 1771-OFE1
• Product Type: Analog Output Module
• Series: 1771 PLC-5 I/O
• Number of Outputs: 4 channels
• Output Type: Analog voltage (±10 VDC, 0–10 VDC, 1–5 VDC)
• Resolution: 12-bit digital resolution
• Channel Isolation: Individually isolated (up to 1000V differential)
• Conversion Time: Approx. 0.8 ms
• Backplane Current: Approx. 1.5 A
• Power Dissipation: Approx. 7.9 W
• Installation: Single slot in 1771 I/O chassis
• Wiring Arm: 1771-WH compatible
• Certifications: ATEX, CE
• Lifecycle Status: Discontinued (March 2021)

Common Replacements:

• Allen Bradley 1771-OFE2
• Allen Bradley 1756-OF4 (ControlLogix)
• Allen Bradley 1769-OF4 (CompactLogix)