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          Apter Power supplies verified Allen-Bradley Compact I/O modules to ensure accurate signal transmission and reliable plant automation.

        1769-OF4CI

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        The Allen-Bradley 1769-OF4CI is a CompactLogix Isolated Analog Output Module designed to provide precise and stable current output signals for industrial automation systems.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1769-OF4CI

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1769-OF4CI
        • Product Family:
          CompactLogix
        • Product Type:
          Isolated Analog Output Module
        • Stock:
          1
        • Number of Outputs:
          4 isolated differential
        • Analog Normal Operating Ranges:
          0 to 20 mA, 4 to 20 mA
        • Full Scale Analog Ranges:
          0 to 21 mA, 3.2 to 21 mA
        • Conversion Rate (all channels):
          Max. 110 ms
        • Step Response to 63%:
          <2.9 ms
        • Resistive Load on Current Output:
          0 to 500 Ω (includes wire resistance)
        • Max. Inductive Load:
          0.1 mH
        • Digital Resolution Across Full Range:
          16 bits (unipolar) • +4 to +20 mA: 15.59 bits, 0.323 µA/bit • 0 to +20 mA: 15.91 bits, 0.323 µA/bit
        • Weight:
          0.18 kg
        • Estimated shipping dimensions:
          3.8x8.6x13.1cm
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Use Cases Compatibility & Interoperability Diagnostics & Protection

        Features:

        • 4-Channel Individually Isolated Current Outputs for High-Precision Signal Control
        • Complete Galvanic Isolation Protection Between Channels and System Backplane
        • Seamless Integration with CompactLogix and MicroLogix 1500 Controller Platforms
        The Allen Bradley 1769-OF4CI operates as an isolated analog current output expansion module within 1769 Compact I/O systems, providing precise control signals for critical process automation. It continuously converts digital control data from the controller backplane into four independently configurable current signals (0–20 mA or 4–20 mA) to drive final control elements such as actuators, VFDs, and control valves. Standard signal processing is delivered with high accuracy; moreover, integrated channel-to-channel isolation eliminates ground loops and noise susceptibility in electrically harsh industrial environments. The 1769-OF4CI delivers robust signal integrity over non-isolated alternatives while maintaining high resolution and fast response times.

        The 1769-OF4CI provides essential analog output capabilities directly affecting the precise execution of closed-loop control applications. As a modular Compact I/O component, it snaps directly onto a standard 35 mm DIN rail or mounts to a panel using integrated mounting tabs. Physical connections are streamlined via a Removable Terminal Block (RTB) with a finger-safe cover, allowing pre-wiring and easy module replacement without disturbing field wiring. The module connects to adjacent I/O cards via tongue-and-groove alignment slots and secures using a sliding bus-lever mechanism.

        For complex and high-interference field applications, the 1769-OF4CI utilizes galvanic isolation across all four output channels to ensure complete electrical separation. In addition to standard 4-channel operation, this isolation protects sensitive controller hardware by preventing high-voltage transients on field wiring from reaching the backplane. The module constantly monitors channel health and operational status via a dedicated Module Status LED.

        The 1769-OF4CI Allen Bradley Isolated Analog Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Allen Bradley 1769-OF4CI Isolated Analog Output Module Manuals,Datasheets,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. All prices are shown in USD.
        Allen Bradley 1769-OF4CI Isolated Analog Output Module Specs

        General

        • Manufacturer Allen Bradley
        • Model 1769-OF4CI
        • Condition New Original ready stock
        • Product Family 1769-OF4VI,1769-OF8C,1769-OF4
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Modulating Final Control Elements: It provides direct control signals to proportional valves, variable frequency drives (VFDs), electric actuators, dampers, and positioners.
        • Long-Distance Transmission: By utilizing a 4–20 mA or 0–20 mA current loop, it maintains signal integrity over long distances by resisting electromagnetic interference and voltage drops.
        • Eliminating Ground Loops: The individual channel-to-channel isolation allows connection to multiple field devices with different electrical reference potentials without causing signal degradation.
        • Natively Formatted PID Loops: It supports data formats such as "Scaled for PID", "Engineering Units", and "Percent Full Range" to eliminate the need for complex scaling blocks in the ladder logic.
        • Local Controllers: It integrates directly with CompactLogix 5370 controllers, legacy 1769-L3x processors, and MicroLogix 1500 systems.
        • Distributed Remote I/O: It deploys on distributed networks via adapter modules, including the 1769-AENTR (EtherNet/IP) and the legacy 1769-ADN (DeviceNet).
        • Programming Software: Configuration is managed through Studio 5000 Logix Designer or RSLogix 500, where users can set output ranges and slot assignments.
        • Physical Slot Constraints: It holds a power supply distance rating of 8 modules, meaning it must sit within 8 slots of a system power supply.
        • Galvanic Isolation: It provides 500V AC or 710V DC continuous isolation between individual channels and from channel-to-backplane to block high-voltage spikes.
        • Electronic Short-Circuit Guard: It protects field-side loops from wiring faults by capping the maximum possible short-circuit loop current at 21 mA.
        • Over-Range and Under-Range Flags: The module continuously checks data array bounds and triggers status bits if a programmatic command exceeds standard operating limits.
        • Custom Output Clamps: It allows users to configure upper and lower signal thresholds in the software to prevent accidental downstream equipment damage.
        • Glitch-Free System Cycles: It holds zero-current output characteristics during PLC power-up and power-down sequences to prevent unexpected machine movement.
        • LED Status Indicators: It includes a front-panel Module OK LED that displays distinct blink patterns for hardware failures, run mode, or missing backplane communication.
        Description
        The Allen Bradley 1769-OF4CI Isolated Analog Output Module is a high-performance CompactI/O expansion module designed to deliver four individually isolated current output channels for precise industrial automation control. This 1769-OF4CI module is specially engineered to handle the challenges of signal distortion, ground loop noise, and electrical cross-channel interference commonly encountered in complex industrial environments. By providing complete channel-to-channel and channel-to-bus galvanic isolation, the 1769-OF4CI eliminates common-mode noise issues and prevents field-side electrical faults from propagating back to the central controller or affecting adjacent analog loops, ensuring maximum operational uptime and accurate control signals.

        In terms of application fields, the Allen Bradley 1769-OF4CI is widely utilized across process control industries such as chemical processing, water and wastewater treatment, oil and gas, pharmaceutical manufacturing, and heavy energy management. This 1769-OF4CI module is ideal for driving field devices like control valves, variable frequency drives (VFDs), current-to-pressure (I/P) converters, recorders, and actuators where precise current output (0–20 mA or 4–20 mA) and high noise immunity are non-negotiable.

        For installation and integration, the 1769-OF4CI features a compact, modular CompactLogix/MicroLogix 1500 form factor with an integrated removable terminal block (RTB) with a finger-safe cover, allowing pre-wiring and rapid field replacement without disconnecting individual conductors. The 1769-OF4CI easily snaps onto a standard DIN rail or panel mounts directly via top and bottom mounting tabs, connecting seamlessly to adjacent modules using built-in tongue-and-groove alignment slots and a sliding bus lever mechanism. 
        Revisions

        Revision Part #

        Also known as

        1769-OF4CI Ser A
        1769-OF4CI/A, Series A, Rev A
        Get Parts Quote
        Alternative Names
        1769-0F4CI 1769-OF4C1 1769-OFACI 17690F4CI 1769OF4C1 1769OF4CI
        Technical notes
        The 1769-OF4CI is an Allen Bradley CompactLogix 4 Channel Analog Current Isolated Output I/O Module. It has a 4-Point Communication Cable. No Field Calibration Required.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What is the Allen-Bradley 1769-OF4CI analog output module?
        The Allen-Bradley 1769-OF4CI is a Compact I/O isolated analog output module designed for CompactLogix control systems. It provides four isolated analog output channels for transmitting accurate control signals to field devices in industrial automation applications.
        What problems does the 1769-OF4CI solve?
        The 1769-OF4CI helps eliminate signal distortion caused by electrical noise, ground loops, and differences in ground potential between controllers and field equipment. Its isolated design improves signal reliability and protects connected devices from electrical faults.
        What devices can the 1769-OF4CI control?
        The module is commonly used to send analog output signals to variable frequency drives (VFDs), control valves, process actuators, transmitters, and other industrial field devices requiring precise analog control.

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