Allen Bradley 1771-OFE | Allen Bradley PLC-5 Intelligent Analog Output Module

Overview The Intelligent Analog Output Module from the PLC-5 series is designed for high-precision voltage or current signal generation. It supports block transfer programming for dynamic control and diagnostics, and is available in multiple variants (OFE1, OFE2, OFE3) depending on the output type. Technical Specifications Part Number: 1771-OFE Module Type: Analog Output Module Number of Channels: 4 individually isolated differential outputs Output Type: OFE1: Voltage OFE2/OFE3: Current Voltage Output Ranges (OFE1): +1 to +5 V DC 0 to +10 V DC –10 to +10 V DC Current Output Ranges (OFE2/OFE3): 4 to 20 mA 0 to 50 mA Resolution: 12-bit DAC Accuracy: ±0.1% full scale Max Load Resistance (Current): 1200 Ω Max Output Current (Voltage): 10 mA Conversion Time: 0.8 ms (resistive load) Data Format: Binary or 4-digit BCD Scaling: Selectable engineering units Block Transfer: Write: up to 13 words Read: 5 words (diagnostics) Backplane Current: 1.5 A @ 5 V DC Power Dissipation: ~7.5 W Field Wiring Arm: 1771-WC Wire Size: 14 AWG max Keying: Between 10–12 and 26–28 Status Indicators: Green RUN LED Red FAULT LED Enclosure Type: Open (requires protective enclosure) Operating Temperature: 0°C to +60°C Storage Temperature: –40°C to +85°C Humidity: 5–95% non-condensing Compliance: UL, CSA, CE Country of Origin: USA Key Features Four isolated analog outputs for independent control Selects voltage or current ranges per channel Supports block transfer programming for dynamic updates Engineering unit scaling for direct process integration Diagnostic readback for fault detection and status monitoring Jumper-configurable last-state behavior on reset Compatible with PLC-2, PLC-3, and PLC-5 processors No external power required—draws from chassis backplane