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.
| 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 |
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.
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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