Allen-Bradley 1771-OFC Series B 12-Bit Analog Output Module

The Allen-Bradley 1771-OFC Series B is a 4-channel intelligent analog output module designed for the PLC-5 and PLC-2 family of programmable controllers. This module converts digital output data into precision analog current or voltage signals for controlling process equipment such as variable frequency drives (VFDs), valve positioners, chart recorders, process controllers, and other analog-controlled devices. The 1771-OFC utilizes 12-bit digital-to-analog conversion to provide accurate and repeatable analog output performance.

Confirmed Specifications

• Manufacturer: Allen-Bradley (Rockwell Automation)
• Catalog Number: 1771-OFC
• Series: B
• Part Number: 96500903
• Product Type: Analog Output Module
• PLC Platform: Allen-Bradley 1771 I/O
• Compatible Controllers:
  • PLC-5
  • PLC-2
  • Compatible 1771 I/O chassis
• Number of Output Channels: 4
• Resolution: 12-Bit
• Output Type: Analog
• Intelligent Module: On-board processor
• Data Formats Supported:
  • 12-bit Binary
  • 3-digit BCD
• Binary Resolution: 1 part in 4096
• Output Signal Ranges (module configurable):
  • 0 to 5 VDC
  • 1 to 5 VDC
  • 0 to 10 VDC
  • ±10 VDC
  • 0 to 20 mA
  • 4 to 20 mA
  • ±20 mA
• Two-slot module design
• Designed for industrial process control and automation applications

Typical Applications

• Process control
• PLC analog signal output
• Variable frequency drive control
• Valve position control
• Industrial automation
• SCADA systems
• Manufacturing equipment
• Chemical processing
• Water and wastewater treatment
• Power generation