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Product Overview

The 1769-OF5 is a high-performance analog output expansion module for Allen-Bradley CompactLogix and MicroLogix 1500 systems. Featuring a 4+1 channel configuration, it provides four configurable voltage/current channels plus one dedicated current-only output, enabling mixed-signal control in a single slot.

Technical Specifications

Item Specification
Module Identifier 1769-OF5
Voltage Ranges ±10V DC, 0–10V DC, 0–5V DC, 1–5V DC
Current Ranges 0–20 mA, 4–20 mA
Resolution 14-bit or 15-bit (range dependent)
Backplane Current 120 mA @ 5.1V DC / 160 mA @ 24V DC
DAC Type Resistor String
Full Scale Ranges 0–21 mA, 0–10.5V DC, ±10.5V DC
Conversion Rate 2.5 ms per channel
Output Impedance <15 Ω (Voltage) / >1 MΩ (Current)
Resistive Load 0–500 Ω (Current) / >1000 Ω (Voltage)
Power Supply Distance Rating 8 modules from power supply
Heat Dissipation 3.61 W max
Dimensions (W × H × D) 118 × 35 × 87 mm
Weight 0.22 kg 

Functional Integration

  • Control Flexibility: First four channels software-configurable for voltage or current.

  • High Precision: 15-bit resolution for granular control in sensitive applications.

  • System Protection: Open-circuit detection for current outputs; short-circuit protection for voltage outputs.

  • Application: Ideal for final control elements in automated loops, such as chemical dosing or precision heating.

Installation Best Practices

  • Cabling: Use shielded twisted-pair (STP) cables; ground shield at module end.

  • Removable Terminal Block (RTB): Allows module replacement without disconnecting field wiring.

  • Slot Placement: Must be within 8 slots of the power supply to ensure signal integrity.

Common Technical Questions

What is the difference between the 1769-OF5 and 1769-OF4?
The OF4 has four identical channels, while the OF5 adds a fifth dedicated current output, providing higher density and mixed signal capability.

Does the 1769-OF5 support "Hold Last State" on CPU fault?
Yes. The module can hold the last output value or transition to a user-defined "Safe Value" if the controller enters Program Mode or experiences a fault.

What's clients say about us

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