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Product Description

The 1769-OF2 is a 2-channel analog output module for Allen Bradley CompactLogix and MicroLogix 1500 controllers. Each channel is independently configurable for voltage or current output, making it perfect for small-scale applications such as controlling variable frequency drives (VFDs), proportional valves, or actuators. Despite its compact size, it delivers high precision, fast response, and industrial reliability, all within a 1-slot module footprint.


Technical Specifications

Feature Specification
Catalog Number 1769-OF2
Number of Outputs 2 Single-Ended Channels
Output Voltage Ranges ±10V, 0–10V, 0–5V, 1–5V
Output Current Ranges 0–20 mA, 4–20 mA
Resolution 14 bits unipolar; 14 bits plus sign bipolar
Backplane Current Draw 120 mA @ 5.1V DC; 120 mA @ 24V DC
Conversion Type Successive Approximation DAC
Step Response 2.9 ms to 63% of full scale
Full Scale Error ±0.5% (Voltage); ±0.55% (Current) @ 25 °C
Output Impedance <1 Ω (Voltage)
Resistive Load 0–600 Ω (Current); >1 kΩ (Voltage)
Power Supply Distance Rating 8 modules
Heat Dissipation 2.23 W max
Dimensions (HxWxD) 118 × 35 × 87 mm 
Operating Temperature 0 to 60 °C

Key Features

  • Dual-Mode Outputs: Each channel can independently output voltage or current.

  • Compact Design: Ideal for small-scale applications or space-constrained racks.

  • Fast Response: 2.9 ms step response ensures precise control of modulating devices.

  • Maintenance-Friendly: Removable terminal block allows pre-wiring before installation.

  • Noise-Resistant: Supports shielded twisted-pair cabling to prevent signal interference.


Frequently Asked Questions

Q: Can I output one channel as voltage and the other as current?
A: Yes, each channel is independently configurable via Studio 5000 or RSLogix 5000.

Q: Does this module require an external 24V DC power supply for the loops?
A: No. The module draws power from the 1769 backplane. External power may be needed for active field devices.

Q: What is the difference between the 1769-OF2 and 1769-OF4?
A: The OF2 has 2 channels, while the OF4 has 4. Choose OF2 for small-scale, cost-effective applications.

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