Allen-Bradley 1756-OF6CI ControlLogix 6-Point Isolated Current Output Module

Allen-Bradley 1756-OF6CI ControlLogix 6-Point Isolated Current Output Module

Price range: $558.00 through $1,103.91

The Allen-Bradley 1756-OF6CI is a 6-point individually isolated current output module (0-20mA / 4-20mA) designed for noise-sensitive industrial actuator control loops. By providing complete channel-to-channel isolation, it eliminates ground loops and signal cross-talk in high-noise electrical environments or multi-power-source installations. The module features high-resolution digital-to-analog conversion for accurate modulation of control valves, variable frequency drives, and positioners. Built-in diagnostic capabilities and customizable fail-safe states ensure maximum process safety and simplified system maintenance.

$558.00
$1,050.90
$1,103.91
SKU: 1756-OF6CI Category: Brand:

Description

  • Part Number: 1756-OF6CI
  • Manufacturer: Allen-Bradley
  • Type: 6-Point Isolated Analog Output Module
  • Series: ControlLogix 1756 Series
  • Application: Isolated Industrial Actuator & Valve Control
  • Size // Rating: 6 Isolated Channels, Current/Voltage Output
  • Connection Type: Removable Terminal Block (RTB) / Backplane
  • Compatibility: Allen-Bradley ControlLogix 1756 System

TCI is not an authorized Allen-Bradley distributor.

Documentation

No documentation is available for this product.

Warranty Coverage

This product is backed by a TCI Supply 1 year Warranty.

Industrial Repair Services

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Description

The Allen-Bradley 1756-OF6CI is a high-performance analog output module engineered for demanding process automation and control applications within the ControlLogix 1756 architecture. Featuring six channels of 0–20 mA or 4–20 mA current output, this module delivers precise, continuous current signals to drive critical field equipment, such as flow control valves, positioners, speed drives, and chemical dosing systems.

What sets the 1756-OF6CI apart is its true channel-to-channel isolation. By electrically isolating each individual output circuit, the card prevents ground loop currents, common-mode voltage problems, and signal cross-talk across connected equipment. This makes it an ideal solution for facility environments with separate power grids, long signal cable runs, or severe electromagnetic interference.

The module offers advanced software configuration capabilities via Studio 5000 and RSLogix 5000 programming platforms. Integrators can set high and low output clamps, select user-defined data formats, and configure specific channel responses—such as Hold Last State or Go to Fault Value—if controller communication is disrupted. Utilizing a standard 20-pin Removable Terminal Block (1756-TBNH or 1756-TBSH), the 1756-OF6CI supports Removal and Insertion Under Power (RIUP) for seamless servicing without stopping active control processes.

Frequently Asked Questions

What is the primary function of the Allen-Bradley 1756-OF6CI module?

The 1756-OF6CI converts digital controller commands into 6 channels of isolated 0–20 mA or 4–20 mA current signals to control modulating field equipment like VFDs and actuators.

What are the advantages of individual channel isolation on the 1756-OF6CI?

Individual channel-to-channel isolation prevents ground loops and electrical noise interference between field loops, allowing each output to operate on separate ground potentials safely.

What signal output range does the 1756-OF6CI support?

It supports configurable 0–20 mA and 4–20 mA current output ranges (with over-range capability up to 21 mA).

Which Removable Terminal Block (RTB) is required for the 1756-OF6CI?

The 1756-OF6CI requires a 20-pin RTB, such as the 1756-TBNH (screw clamp) or 1756-TBSH (spring clamp).

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