The 1769-OF4 is a 4-channel analog output module for Allen-Bradley CompactLogix and MicroLogix 1500 systems. Each channel is software-configurable for voltage (±10V, 0–10V, 0–5V, 1–5V) or current (0–20 mA, 4–20 mA) outputs, allowing mixed-signal use on a single module. It delivers high-precision 15-bit resolution and fast 2.5 ms conversion, ideal for driving VFDs, proportional valves, and other process actuators.
| Item | Specification |
|---|---|
| Catalog Number | 1769-OF4 |
| Number of Outputs | 4 Single-Ended Channels |
| Output Ranges | Voltage: ±10V, 0–10V, 0–5V, 1–5V; Current: 0–20 mA, 4–20 mA |
| Resolution | 15-bit plus sign |
| Backplane Current Draw | 120 mA @ 5.1V DC; 170 mA @ 24V DC |
| Heat Dissipation | 2.86 W max |
| Step Response | 2.9 ms to 63% full scale |
| Conversion Rate | 2.5 ms (all channels) |
| Accuracy | ±0.5% full scale @ 25 °C |
| Output Impedance | 1 Ω (Voltage); >1 MΩ (Current) |
| Resistive Load | Current: 0–600 Ω; Voltage: ≥1 kΩ |
| Isolation | Module-to-backplane; channels share common return (ANLG Com) |
| Power Supply Distance Rating | 8 modules |
| Dimensions (HxWxD) | 118 x 35 x 87 mm |
| Weight | 0.68kg |
| Operating Temperature | 0–60 °C |
Mixed signal flexibility: voltage and current outputs can coexist on the same module
Not individually isolated between channels; for full channel-to-channel isolation, use 1769-OF4VI or 1769-OF4CI
Powered directly from the 1769 backplane; ensure supply has enough capacity
4–20 mA wiring: positive to I out, return to ANLG Com; use shielded twisted-pair cable
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