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1771-ACN15

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Allen-Bradley 1771-ACN15 is a ControlNet adapter module used to control 1771 remote I/O on the ControlNet network while supporting high-speed data transfer and diagnostic communication.
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Technical specifications for 1771-ACN15

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1771-ACN15
  • Product Family:
    PLC-5
  • Product Type:
    ControlNet Adapter Module
  • Module Location:
    1771 I/O chassis, leftmost slot
  • Interconnect Cable:
    Quad shield RG-6 coaxial cable ± Refer to the, ControlNet Cable System manual (pub. no.1786-6.2.1) for more information
  • Power Dissipation:
    5 Watts
  • Thermal Dissipation:
    17.06 BTU/hr
  • Backplane Current:
    1.0A @ 5V
  • Keying:
    Upper connector: between 54 and 56, Lower connector: between 16 and 18
  • Operational Temperature:
    0°C to 60°C (32°F to 140°F)
  • Storage Temperature:
    ±40°C to 85°C (±40°F to 185°F)
  • Relative Humidity:
    5% to 95% (without condensation)
  • Weight:
    0.9 kg
  • Estimated shipping dimensions:
    5.3x16.3x27.2cm
  • 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 Installation Standards Use Cases

Features:

  • Supports deterministic remote I/O data exchange across the ControlNet network for industrial automation applications.
  • Front-panel indicators, alphanumeric display, and reset pushbutton simplify troubleshooting and communication recovery procedures.
  • Built-in Network Access Port allows direct access for programming, monitoring, and maintenance devices without interrupting network operation.
Allen-Bradley 1771-ACN15 provides communication management for 1771 remote I/O systems connected through ControlNet architecture. The module enables stable message exchange between controllers, automation devices, and certified third-party products within industrial networks. Diagnostic monitoring functions on the front panel help operators identify communication conditions quickly. With support for high-speed data transfer, the module fits production systems that require consistent network performance.

Industrial facilities using Allen-Bradley 1771-ACN15 can benefit from centralized remote I/O communication and simplified maintenance access. The integrated Network Access Port supports programming and monitoring devices directly from the module front panel. Communication reset capability helps restore operation after detected communication faults. Standard BNC connector interfaces also simplify cable integration into existing ControlNet installations.

Allen-Bradley 1771-ACN15 combines network communication capability with industrial durability for long-term automation applications. The module supports operating temperatures from 0°C to 60°C and maintains functionality in humidity levels up to 95% without condensation. Status indicators and display functions provide useful operational feedback during commissioning and maintenance. These features make the module suitable for distributed control systems requiring reliable ControlNet connectivity.

The 1771-ACN15 Allen-Bradley ControlNet Adapter Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1771-ACN15 ControlNet Adapter 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 1771-ACN15 ControlNet Adapter Module Specs

General

  • Manufacturer Allen-Bradley
  • Model 1771-ACN15
  • Condition New Original ready stock
  • Product Family 1771-ACN15/A,1771-ACN15/B,1771-ACNR15
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.
  • Slot Location: Must be securely installed in the first dedicated main slot on the far left of the 1771 I/O rack.
  • Hardware Addressing: Precisely set the unique node address for the ControlNet network via a mini DIP switch on the side of the module.
  • Physical Connection: Connect the ControlNet flexible coaxial cable in twisted pairs to the A/B redundant channels using a standard BNC connector.
  • Locking Mechanism: The rack's built-in top and bottom metal locking mechanisms ensure that the module does not physically shift under severe vibration.
  • Network Bandwidth: Strictly adheres to the ControlNet international standard protocol, providing deterministic communication rates up to 5 Mbps.
  • Node Capacity: Supports up to 99 logical physical nodes in a single ControlNet serial network.
  • Certifications: UL industrial safety certified, CSA certified, and meets European CE marking electromagnetic compatibility standards.
  • Protection Rating: Internal circuit boards are coated with a moisture-proof and corrosion-resistant coating, meeting industrial-grade Class I Division 2 explosion-proof environmental standards.
  • Remote Rack Bridging: Bridging the traditional 1771 PLC-5 system rack as a remote distributed I/O port to the new network.
  • PLC Upgrade Transition: In ControlLogix system upgrade projects, used to retain and directly control the existing 1771 I/O hardware.
  • Redundant Communication Deployment: In critical uninterrupted production lines, utilizing dual coaxial cables to achieve real-time redundant switching of A/B links.
  • High-Density Data Acquisition: Deployed in large automotive assembly lines or paper mills, responsible for the high-speed uploading of hundreds of distributed digital/analog signals.
Description
Allen-Bradley 1771-ACN15 functions as a ControlNet adapter module for 1771 remote I/O systems, enabling communication between programmable controller platforms and devices connected through the ControlNet network architecture. The module supports message exchange between Allen-Bradley equipment and certified third-party products, helping industrial facilities maintain coordinated control and monitoring operations. Installation takes place in the leftmost slot of the 1771 I/O chassis, where the module manages remote I/O communication and network interaction. With support for high-speed data transfer and diagnostic messaging, 1771-ACN15 is suitable for manufacturing environments that require dependable industrial communication. The module operates within a temperature range of 0°C to 60°C and tolerates relative humidity levels from 5% to 95% without condensation.

The communication structure of Allen-Bradley 1771-ACN15 includes a Network Access Port (NAP), ControlNet media port, status indicators, alphanumeric display, and communication reset pushbutton. The Network Access Port provides a bidirectional electrical interface that allows programming, maintenance, and I/O monitoring devices to connect directly to the network. Through the front-mounted BNC connector, the module connects to quad shield RG-6 coaxial cable in accordance with ControlNet cable system requirements. Diagnostic and operational monitoring are supported through front-panel indicators, including the OK indicator, status indicators, and address/status display. These components assist maintenance personnel in identifying operational conditions and troubleshooting communication problems during system startup or runtime.

Allen-Bradley 1771-ACN15 also includes module net address switch assemblies located on the top of the module, allowing configuration within the ControlNet network. During communication interruptions or initialization faults, the communication reset pushbutton can be used to restore communication when the status display indicates RSET or PRL conditions. The adapter module consumes 5 Watts of power with thermal dissipation rated at 17.06 BTU/hr, while drawing 1.0A at 5V from the backplane. Keying positions are specified between 54 and 56 on the upper connector and between 16 and 18 on the lower connector to help ensure correct module installation within the chassis.

Industrial automation systems using Allen-Bradley 1771-ACN15 benefit from centralized remote I/O management and stable network communication across production environments. The module supports ControlNet communication architecture designed for deterministic and scheduled data transfer, helping maintain consistent communication between controllers and field devices. Diagnostic messaging capability simplifies maintenance tasks by providing operational feedback and status information directly from the module front panel. The combination of communication monitoring, reset functionality, and network access support makes 1771-ACN15 practical for applications where uptime and troubleshooting efficiency are important operational requirements.

Allen-Bradley 1771-ACN15 is engineered for long-term operation in industrial conditions, including storage temperatures ranging from -40°C to 85°C. The module front panel integrates communication indicators and status displays that help operators monitor network conditions without additional diagnostic hardware. Cable connection through standard BNC connectors allows straightforward integration into existing ControlNet infrastructure using approved RG-6 coaxial cable systems. By combining ControlNet connectivity, remote I/O control capability, and maintenance-oriented diagnostics, 1771-ACN15 supports reliable communication performance in distributed automation applications.
Revisions

Revision Part #

Also known as

1771-ACN15 Ser A
1771-ACN15/A, Series A, Rev A
1771-ACN15 Ser B
1771-ACN15/B, Series B, Rev B
Alternative Names
1771-ACNI5 1771ACN15 1771ACNI5 177I-ACN15 1771-ACNR15 1771-WS 1771-WHFB 1771-SDN
Technical notes
The 1771-ACN15 is a standard 1771-platform ControlNet adapter designed to deliver real-time, repeatable I/O communication under harsh Class I Div 2 industrial compliance standards.
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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.
How does Allen-Bradley 1771-ACN15 support troubleshooting?
1771-ACN15 includes diagnostic indicators, an OK status indicator, alphanumeric status display, and communication reset pushbutton to help identify and recover from communication errors.
Does Allen-Bradley 1771-ACN15 require a specific cable type?
Allen-Bradley 1771-ACN15 uses quad shield RG-6 coaxial cable for ControlNet communication connections through the front BNC connector.
How much power does Allen-Bradley 1771-ACN15 consume during operation?
1771-ACN15 has a power dissipation rating of 5 Watts and thermal dissipation of 17.06 BTU/hr during normal operation.
Where should Allen-Bradley 1771-ACN15 be installed inside the chassis?
Allen-Bradley 1771-ACN15 is installed in the leftmost slot of the 1771 I/O chassis for proper ControlNet adapter operation.

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