1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points
1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points
1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points
    1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points
1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points

1756-OF6CI | Allen-Bradley ControlLogix Isolated Analog Output, Current, 6 Points

Part #: 1756-OF6CI Manufactured by: Allen-Bradley
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Product Overview
Allen-Bradley 1756-OF6CI ControlLogix Isolated Analog Output Module, Current, 6 Points (20 Pin)
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Product Description P/N: 1756-OF6CI

Description / Specifications

Description 

Allen Bradley ControlLogix Isoloated Analog Output Module with current loop with 6-Point Isolated Outputs

 

Technical Specifications 

 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-OF6CI
Manufacturer Rockwell Automation
Module Type Isoloated Analog Output Module with current loop
Outputs 6-Point Isolated
Backplane Current (5Volts) 250 milliamps
Backplane Current (24 Volts) 300 milliamps
Power Dissipation (Max) 5.5 Watts or 6.1 Watts
Removable Terminal Blocks 1756-TBNH, 1756-TBSH
Power Dissipation (Max) 4.9 Watts at 60 Celsius
Isolation Voltage 50 Volts Continuous
Enclosure None

  

 

Information About 1756-OF6CI

The Allen-Bradley 1756-OF6CI module is a ControlLogix Series A general purpose isolated analog current/voltage output module. This module has 6 available individually-isolated current outputs. It also has a 13-bit resolution across 21 milliamps (2.7 µA). It requires either the 1756-TBNH or 1756-TBSH removable terminal block housing (RTB) before it can be installed in a grounded and installed chassis.

Communication format types available with the 1756-OF6CI module are the integer and floating point formats. Features of this analog output module include data echo, ramping/rate limiting, clamping/limiting, clamp/limit alarms, and hold for initialization. The programs the 1756-OF6CI’s features.

It has a range of 0 to 20 milliamps with a low signal and user counts of 0 milliamps and -32768 counts and a high signal and user counts of 21.074 milliamps with 32767 counts. The current draw of this module at 5.1V is 250 milliamps from 0 to 550 ohms terminated on the OUTs and RTNs and 551 to 1000 ohms terminated on the OUTs and ALTs. At 24V, its current draw is 225 milliamps for 0 to 550 ohms terminated on the OUTs and RTNs and 300 milliamps for 551 to 1000 ohms terminated on OUTs and ALTs. It has a total backplane power of 6.7 W for 0 to 550 ohms and 8.5 W for 551 to 1000 ohms. The module has a maximum power dissipation of 5.5 W for 0 to 550 ohms loads and 6.1 W for 551 to 1000 ohms loads. It does not have open circuit detection but it does have a 24V DC overvoltage protection and a short circuit protection that is limited to 21 milliamps or less. Routine tested at 1350V AC for 2 s, its continuous isolation voltage is 250V.

The 1756-OF6CI module has a maximum module scan time of 10 ms for the integer format and 25 ms for floating point format with a module error of 0.6% of the range. Its settling time is less than 2 ms to 95% of final value with resistive loads, a calibration interval of 6 months, and a calibrated accuracy of better than 0.1% of 4 to 21 milliamps at 25 Degrees Celsius. The nominal gain drift with temperature is 60 ppm per Degree Celsius and the maximum gain drift with temperature is 100 ppm per Degree Celsius.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1756-OF6CI
Question: What is the 1756-OF6CI?
Date Update:06/06/2025
Answer:

The 1756-OF6CI is a 6-channel isolated analog output module for the Allen-Bradley ControlLogix system.

It’s designed to provide analog control signals (current) to field devices.

Key features:

  • 6 isolated current output channels
  • Output range: 0-20 mA or 4-20 mA
  • Resolution: 15 bits plus sign
  • Isolation: 250V DC isolation between outputs
Question: What type of wiring is used with the 1756-OF6CI?
Date Update:06/06/2025
Answer:

Output wiring:

  • Use shielded twisted-pair cables for better noise immunity.
  • Each channel has a dedicated OUT and RTN (return) terminal for connection to field devices.

Typical wiring steps:

  • Connect the OUT terminal of the module to the positive terminal of the field device.
  • Connect the RTN terminal to the negative terminal of the field device.
  • Ensure shields are connected to the recommended ground point.
Question: Where can I find the manual for the 1756-OF6CI?
Date Update:06/06/2025
Answer:

You can find the official manual and installation instructions in the Rockwell Automation Literature Library or Product Compatibility and Download Center (PCDC).

Question: How do I configure the module in Studio 5000/RSLogix 5000?
Date Update:06/06/2025
Answer:

In Studio 5000:

  • Add the module to your I/O configuration.
  • Set the output range (0-20 mA or 4-20 mA) per channel in the module properties.
  • Download the configuration to the ControlLogix processor.
Question: How do I troubleshoot output errors?
Date Update:06/06/2025
Answer:

Common issues:

  • Output not responding: Verify wiring and ensure the field device is powered.
  • Output error/fault: Check module diagnostics in Studio 5000.
  • Interference: Use shielded cables, separate analog from high-voltage wiring.
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Description / Specifications

Description 

Allen Bradley ControlLogix Isoloated Analog Output Module with current loop with 6-Point Isolated Outputs

 

Technical Specifications 

 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-OF6CI
Manufacturer Rockwell Automation
Module Type Isoloated Analog Output Module with current loop
Outputs 6-Point Isolated
Backplane Current (5Volts) 250 milliamps
Backplane Current (24 Volts) 300 milliamps
Power Dissipation (Max) 5.5 Watts or 6.1 Watts
Removable Terminal Blocks 1756-TBNH, 1756-TBSH
Power Dissipation (Max) 4.9 Watts at 60 Celsius
Isolation Voltage 50 Volts Continuous
Enclosure None

  

 

Information About 1756-OF6CI

The Allen-Bradley 1756-OF6CI module is a ControlLogix Series A general purpose isolated analog current/voltage output module. This module has 6 available individually-isolated current outputs. It also has a 13-bit resolution across 21 milliamps (2.7 µA). It requires either the 1756-TBNH or 1756-TBSH removable terminal block housing (RTB) before it can be installed in a grounded and installed chassis.

Communication format types available with the 1756-OF6CI module are the integer and floating point formats. Features of this analog output module include data echo, ramping/rate limiting, clamping/limiting, clamp/limit alarms, and hold for initialization. The programs the 1756-OF6CI’s features.

It has a range of 0 to 20 milliamps with a low signal and user counts of 0 milliamps and -32768 counts and a high signal and user counts of 21.074 milliamps with 32767 counts. The current draw of this module at 5.1V is 250 milliamps from 0 to 550 ohms terminated on the OUTs and RTNs and 551 to 1000 ohms terminated on the OUTs and ALTs. At 24V, its current draw is 225 milliamps for 0 to 550 ohms terminated on the OUTs and RTNs and 300 milliamps for 551 to 1000 ohms terminated on OUTs and ALTs. It has a total backplane power of 6.7 W for 0 to 550 ohms and 8.5 W for 551 to 1000 ohms. The module has a maximum power dissipation of 5.5 W for 0 to 550 ohms loads and 6.1 W for 551 to 1000 ohms loads. It does not have open circuit detection but it does have a 24V DC overvoltage protection and a short circuit protection that is limited to 21 milliamps or less. Routine tested at 1350V AC for 2 s, its continuous isolation voltage is 250V.

The 1756-OF6CI module has a maximum module scan time of 10 ms for the integer format and 25 ms for floating point format with a module error of 0.6% of the range. Its settling time is less than 2 ms to 95% of final value with resistive loads, a calibration interval of 6 months, and a calibrated accuracy of better than 0.1% of 4 to 21 milliamps at 25 Degrees Celsius. The nominal gain drift with temperature is 60 ppm per Degree Celsius and the maximum gain drift with temperature is 100 ppm per Degree Celsius.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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