Allen-Bradley 1769-OF5 CompactLogix 5-Channel Analog Output Module

Product Overview

The 1769-OF5 is a high-density analog output expansion module designed for the Allen-Bradley CompactLogix and MicroLogix 1500 platforms. It features a unique 4+1 channel architecture: four universal channels configurable for either voltage or current, and one dedicated current-only output channel. This configuration allows engineers to manage mixed-signal field devices within a single compact slot, optimizing cabinet space and reducing system overhead.

Technical Specifications

• Module Type: Analog Output (Voltage/Current mixed)

• Channels: 5 Total (4 Configurable + 1 Dedicated Current)

• Voltage Output Ranges: ±10V DC, 0–10V DC, 0–5V DC, 1–5V DC

• Current Output Ranges: 0–20 mA, 4–20 mA

• Digital-to-Analog Converter (DAC): Resistor String

• Resolution: 15 bits (unipolar); 14 bits plus sign (bipolar)

• Full Scale Ranges: 0–21 mA, 0–10.5V DC, ±10.5V DC

• Conversion Rate: 2.5 ms per channel (all channels concurrently)

• Step Response: 2.9 ms to 95% of full scale

• Output Impedance: < 15 Ω (Voltage Mode) / > 1 MΩ (Current Mode)

• Load Range: 0–500 Ω (Current) / > 1000 Ω (Voltage)

• Backplane Current Draw: 120 mA @ 5.1V DC; 160 mA @ 24V DC

• Heat Dissipation: 3.61 Watts Max

• Power Supply Distance Rating: 8 Modules (Must be within 8 slots of a 1769 power supply)

• Dimensions: 118 x 35 x 87 mm (H x W x D)

Functional Integration and Protection

The 1769-OF5 is engineered for high-precision control loops. It utilizes software-configurable parameters via RSLogix 500 or Studio 5000, eliminating the need for physical jumpers.

• Safety States: Supports "Hold Last State" or "User-Defined Safe Value" on controller fault or Program Mode transition.

• Diagnostics: Built-in open-circuit detection for current loops and short-circuit protection for voltage outputs, reported directly to the controller's status bits.

• Wiring: Includes a Removable Terminal Block (RTB) to facilitate quick hardware replacement without disturbing field wiring.