Allen Bradley PLC-5 1771-OFE1 | 4-Channel 12-Bit Analog Output Module

Product Description

The Allen Bradley PLC-5 1771-OFE1 Analog Output Module provides four isolated differential voltage output channels for precise signal control in automation systems. With 12-bit resolution, multiple voltage ranges, and fast converter response, it ensures accurate analog output for industrial applications. Designed for rack-mounted PLC-5 systems, it integrates seamlessly with 1771 I/O chassis and requires no external power supply.

Technical Specifications

• Model / Part Number 1771-OFE1

• Manufacturer Allen Bradley (Rockwell Automation)

• Product Line PLC-5 Series

• Product Type Analog Output Module

• Weight 1.25 lbs (0.57 kg)

• Number of Channels 4 isolated differential channels (1000 V isolation)

• Output Signal Ranges

• +1 to +5 VDC

• 0 to +10 VDC

• –10 to +10 VDC

• Resolution 12 bits

• Accuracy ±0.1% of full scale; ±½ LSD in BCD; ±½ LSB in binary mode

• Converter Setting Time 0.8 ms

• Internal Scan Rate 8 ms

• Backplane Current Consumption 1.5 A

• Power Dissipation 7.9 W

• Thermal Dissipation 26.9 BTU/hr

• Signal Delay

• DC Off: 50 ms

• AC Off: 45 ms ± 15 ms

• Data Formats Supported BCD or natural binary

• Wiring Arm 1771-WH

• Chassis Compatibility Any 1771 I/O chassis

• Mounting Rack mountable

• External Power Requirement None

Application Scenarios

• Industrial automation systems requiring precise voltage outputs

• Process control applications with multiple analog signal ranges

• Environments needing isolated differential outputs for noise reduction

FAQ

Q: How many output channels does the 1771-OFE1 provide?  A: It supports 4 isolated differential channels.

Q: What resolution is supported?  A: 12-bit resolution for accurate analog signal generation.

Q: Does the module require external power?  A: No, it operates using backplane power only.

Q: What wiring arm is compatible?  A: The 1771-WH wiring arm.

Comparison with Similar Models

• 1771-OFE1: 4-channel analog output, 12-bit resolution, isolated differential outputs

• 1771-OFE2: Expanded analog output ranges, higher accuracy

• 1771-IFE: Analog input module, multiple voltage ranges, 12-bit resolution