Allen-Bradley ControlLogix 1756-OF4 Analog Output Module

Overview:
The 1756-OF4 from Allen-Bradley is a high-precision 4-channel analog output module designed for ControlLogix PLC systems. It provides both current and voltage outputs with high resolution, ensuring accurate control of process signals. The module supports ±10 V voltage and 4–20 mA current ranges, making it suitable for a wide variety of industrial automation applications.

Technical Specifications:

• Model: 1756-OF4

• Product Type: Analog Output Module

• Outputs: 4 channels, current and voltage

• Output Voltage Range: ±10 V

• Output Current Range: 4–20 mA

• Voltage Resolution: 15-bit across 10.5 V, 320 µV/bit

• Current Resolution: 15-bit across 21 mA, 650 nA/bit

• Backplane Current: 150 mA @ 5 V, 120 mA @ 24 V

• Power Dissipation: 4.9 W at 60 °C

• Removable Terminal Blocks: 1756-TBNH, 1756-TBSH

• Isolation Voltage: 50 V continuous

• Weight: 0.45 kg

Features:

• High-resolution analog outputs for precise control

• Supports both current and voltage output types

• Compatible with Allen-Bradley ControlLogix PLC systems

• Removable terminal blocks for easier installation and maintenance

• Robust design for industrial environments

Applications:
Ideal for controlling actuators, valves, and process equipment in manufacturing, process automation, and monitoring systems.

FAQ:
Q: Can the 1756-OF4 output both voltage and current simultaneously?
A: Yes, it provides flexible channels that support either current (4–20 mA) or voltage (±10 V).

Q: What PLC systems are compatible?
A: It is designed for ControlLogix systems and integrates seamlessly with other Allen-Bradley modules.

Q: What is the maximum power dissipation?
A: The module dissipates up to 4.9 W at 60 °C.