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ControlLogix Analog Output Module
Analog Output - Current/Voltage 4 Pts (20 Pin)
ControlLogix voltage/current output
analog module, 4 voltage or current outputs
The 1756-OF4 is a four-channel analog output module. It delivers versatile voltage and current drive capabilities across multiple calibrated ranges, ensuring seamless integration with various industrial field devices.
Input, output, and combination modules
Thermocouple and RTD modules
Electronic module keying, software configurable
This versatile Analog Output - Current/Voltage 4 Pts (20 Pin) module offers independent channel configuration to match varying field instrument requirements. It supports double-polarity voltage signals ranging from -10 to +10 Volts, as well as industry-standard 4 to 20 mA current loops. This wide compatibility allows the module to directly drive proportional valves, variable frequency drives (VFDs), actuators, and chart recorders without the need for external signal converters.
Operating within a compact 1-slot width, the 1756-OF4 features an open-style enclosure that fits into standard ControlLogix chassis such as the 1756-A10. Its power metrics suit high-density control cabinets. Built for 24/7 manufacturing environments, the module operates across a temperature range of 0 to 60 degrees Celsius.
It supports Removal and Insertion Under Power (RIUP), allowing module replacement while the chassis remains energized and other system processes continue. This function reduces repair times and downtime losses in sectors such as water treatment, power generation, oil and gas, and automotive assembly.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen Bradley 1756-OF4 ControlLogix Analog Output Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas Refining
Sending a 1-5V or 4-20 mA command to an electro-pneumatic positioner on a refinery distillation column feed valve.
Thermal Power Generation
Regulating the actuator of a main boiler feed water control valve based on steam demand.
Chemical & Petrochemical Industry
Driving a control signal to a steam jacket valve to regulate the exothermic reaction temperature in a batch reactor.
Metallurgy & Steel Mills
Providing a precise voltage reference signal (0-10V) to main drive motor controllers to ensure consistent steel sheet thickness.
Pharmaceuticals & Biotechnology
Sending an analog signal to an acid/base pump drive to maintain strict pH levels inside a fermentation bioreactor.
Automotive Manufacturing
Adjusting the fan speeds and air dampers in a robotic painting booth via precise analog speed references.
When using the Allen-Bradley 1756-OF4 module, ensure it is installed in a protected enclosure to shield its open-style structure, and pair it with a 20-pin removable terminal block (RTB) wired according to Category 1 specifications.
Verify that backplane power draws do not exceed 150 mA at 5.1V DC or 210 mA at 24V DC, maintain ambient operating temperatures between 0 and 60°C, and fully utilize its RIUP capability for seamless online hot-swapping.
The Allen-Bradley 1756-OF4 is a 4-channel, industrial-grade analog output module designed specifically for ControlLogix systems. Each channel can be independently configured via software for voltage (e.g., ±10V) or current (e.g., 4-20mA) signals, offering a high 15-bit digital-to-analog resolution to control regulating valves and variable frequency drives with high precision. It fully supports removal and insertion under power (RIUP) and features built-in open-loop and short-circuit diagnostics, along with configurable fault-state presets. With its exceptional isolation and low latency, this module serves as a highly reliable core execution component in continuous process industries such as petrochemicals and power generation.
It is a 4-channel non-isolated analog output module for the ControlLogix platform, used to control field field devices.
What is the primary function of the 1756-OF4?
It converts digital signals from the controller into precise analog voltage or current signals to drive actuators.
What signal ranges does the 1756-OF4 support?
It supports voltage outputs of ±10V and current outputs of 0 to 20 mA or 4 to 20 mA.
Is the 1756-OF4 an isolated or non-isolated module?
It is a non-isolated module, meaning its four output channels share a common electrical return path.
How to install the 1756-OF4 module?
It slides directly into any available slot of a standard 1756 ControlLogix chassis and clicks securely into place.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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