Allen-Bradley 1747OC-EBCBA A
Allen-Bradley 1747OC-EBCBA A
Allen-Bradley 1747OC-EBCBA A
Allen-Bradley 1747OC-EBCBA A
Allen-Bradley 1747OC-EBCBA A
Allen-Bradley 1747OC-EBCBA A
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1747OC-EBCBA/A

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The Allen-Bradley 1747OC-EBCBA/A is a PC-based Open Controller CPU module, installed in the left slot of the Allen-Bradley 1746 rack. It supports various real-time operating systems (RTOS) and the SLC 500 I/O module, suitable for high-performance industrial automation control applications.
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Technical specifications for 1747OC-EBCBA/A

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1747OC-EBCBA/A
  • Product Family:
    SLC 500
  • RAM:
    64 MB to 256 MB
  • Power Supply:
    24V DC
  • Product type:
    Open Controller CPU
  • Compatibility:
    SLC 500
  • Power requirement:
    2.25 Amps at 5 Volts DC
  • Operating Temperature:
    0°C to 60°C (32°F to 140°F)
  • Humidity:
    5% to 95% (non-condensing)
  • Weight:
    0.32 kg
  • Estimated shipping dimensions:
    3.5x13x14.5cm
  • Tariff Code:
    3926909090
  • 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 Architecture Functionality Scenarios

Features:

  • High-Performance PC-Based Open Controller With Dual-Port Memory For I/O Management And Control
  • Flexible Expansion Options Via PCI Modules For Memory, Communication, And Display
  • Full Compatibility With Allen-Bradley 1746 Chassis And SLC 500 I/O Modules
The Allen-Bradley 1747OC-EBCBA/A Open Controller CPU module is the core of high-performance industrial automation control solutions. Utilizing a PC-based architecture, it combines dual-port memory and scanner functionality to achieve real-time management of the 1746 series I/O. The module's RAM is expandable up to 256 MB, meeting the high memory requirements of complex control tasks, while supporting multiple real-time operating systems to ensure the reliability and stability of task execution.

The module offers flexible expansion capabilities, supporting the addition of extra memory, communication interfaces, and video display modules via PCI slots, allowing users to build customized control systems according to specific application needs. With support for the 1747-SN remote I/O and the 1747-SDN DeviceNet scanner, the 1747OC-EBCBA/A can be seamlessly integrated into existing SLC 500 systems, maintaining full compatibility.

In industrial applications, the 1747OC-EBCBA/A can be used for batch production control, distributed control systems, and real-time data acquisition and monitoring. The module's dual-port memory provides non-volatile storage, ensuring that I/O values ​​and application parameters remain intact after power failure or restart, guaranteeing continuous system operation and data security. Its LED, switch, and jumper control functions make field operation more intuitive, suitable for diverse industrial control needs.

The 1747OC-EBCBA/A Allen-Bradley Open Controller CPU Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1747OC-EBCBA/A Open Controller CPU 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 1747OC-EBCBA/A Open Controller CPU Module Specs

General

  • Manufacturer Allen-Bradley
  • Model 1747OC-EBCBA/A
  • Condition New Original ready stock
  • Product Family 1747-L553,1747-L543,1746-BAS
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 Integration: Directly occupies Slot 0 (first slot on the left) of the 1746 rack, taking over control of the entire rack via the backplane bus, achieving physical isomorphism between PC and I/O.
  • Dual-Port Mapping: Utilizing Dual-Port RAM technology, the image table of the I/O scanner is directly mapped to the CPU memory address space, allowing applications to read and write I/O as quickly as reading and writing local variables.
  • Deterministic Clock: Built-in high-precision timer supports synchronous scan mode, ensuring complete synchronization between the execution cycle of complex algorithms and hardware I/O refresh.
  • Expansion Bus: Onboard standard PCI local bus interface, allowing the insertion of third-party modules, directly expanding video capture cards, high-speed network cards, or SCSI storage within the rack.
  • Interrupt Management: Supports Event-Driven interrupts, capable of microsecond-level response to the rising/falling edges of discrete input signals, skipping cyclic scanning and directly executing tasks.
  • State Maintenance: Integrated NVRAM (Non-Volatile Random Access Memory) permanently stores application-layer timer, counter states, and recipe data, even without a battery.
  • Control Transparency: Directly drives four user-defined LEDs and physical switches on the panel via low-level API, allowing developers to customize display modes based on logic conflicts or process alarms.
  • Protocol Penetration: Through software-defined serial ports and PCI communication cards, complex protocol packets can be directly packaged or decompressed at the CPU level, enabling low-level interface with CNC or vision systems.
  • Edge Computing: Performs real-time FFT (Fast Fourier Transform) analysis in oil drilling or remote pumping stations, uploading only the processed vibration characteristics to save bandwidth.
  • High-Speed ​​Pharmaceuticals: Handles complex traceability coding logic in capsule filling lines while simultaneously monitoring the real-time response of hundreds of I/O points.
  • Protocol Black Box: Connects to non-standard laboratory analytical instruments, using C-language drivers to convert proprietary protocols into standard industrial data.
  • Real-time Simulation: At the core of Hardware-in-the-Loop (HIL) testing, it runs code generated by MATLAB/Simulink to dynamically simulate the physical hardware.
Description
The Allen-Bradley 1747OC-EBCBA/A Open Controller CPU module is an industrial-grade PC controller designed for installation in the left slot of the Allen-Bradley 1746 rack. This module provides 64 MB to 256 MB of RAM and is compatible with various PC-based operating systems and real-time operating systems (RTOS), providing powerful computing capabilities for complex automation applications. Users can communicate with the integrated 1746 local I/O scanner via dual-port memory for efficient management and control of the I/O module.

The module supports most 1746 series I/O and communication modules, including the 1747-SN remote I/O and the 1747-SDN DeviceNet scanner. Through PCI expansion options, storage, communication, and video display functions can be added, making the Allen-Bradley 1747OC-EBCBA/A more flexible and versatile in application. The control application utilizes dual-port memory to handle SCANNER commands, scan rate, I/O image counts, priority messages, and interrupts, while also providing control over four user-definable LEDs, a three-position switch, and a two-position jumper.

The 1747OC-EBCBA/A also provides non-volatile storage via dual-port memory, including I/O values and application parameters (such as timers, counters, and preset values), ensuring data integrity in the event of power failure or restart. The module can synchronously scan to the application, force I/O, handle discrete input interrupts and I/O module triggered interrupts, and also supports I/O slot enable/disable and reset functions.

With its PC-based architecture and Open Controller features, this module is suitable for complex industrial automation control scenarios, such as distributed control systems, batch production control, and real-time data acquisition and monitoring applications. The 1747OC-EBCBA/A provides a flexible and scalable hardware platform, allowing users to build customized control systems in the 1746 rack and is fully compatible with existing SLC 500 series modules.
Alternative Names
1747-OCE 1747-OCF 1747OC-EBCBB 1747OC-EBCBA
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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 the dual-port memory function?
It allows communication with the SCANNER, handling I/O control, priority messages, interrupts, LED and switch control, and storing non-volatile I/O and application parameters.
What kind of I/O can 1747OC-EBCBA/A manage?
It can address all 1746 I/O modules, 1747-SN remote I/O, and 1747-SDN DeviceNet scanners, providing a unified interface for complex control systems.
Can I expand the 1747OC-EBCBA/A system?
Yes, PCI-based option modules can be added to expand memory, communications, or display capabilities, offering scalability for specific applications.
How does it handle environmental conditions?
The module operates in 0–60°C (32–140°F) with 5–95% non-condensing humidity, suitable for standard industrial environments.

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