Allen-Bradley 1747-OCVGA1/A
Allen-Bradley 1747-OCVGA1/A
Allen-Bradley 1747-OCVGA1/A
Allen-Bradley 1747-OCVGA1/A
Allen-Bradley 1747-OCVGA1/A
Allen-Bradley 1747-OCVGA1/A
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1747-OCVGA1/A

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The Allen-Bradley 1747-OCVGA1/A acts as a bridge between industrial control logic and standard display technology, enabling the controller to output high-quality VGA signals.
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Technical specifications for 1747-OCVGA1/A

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1747-OCVGA1/A
  • Product Family:
    SLC 500
  • Platform Compatibility:
    SLC 500 Open Controller Series
  • Slot Requirement:
    Single slot in 1746 chassis
  • Output Interface:
    Standard VGA (Video Graphics Array)
  • Backplane Current (5V DC):
    0.25 Amps
  • Resolution Support:
    Standard VGA resolutions for industrial monitors
  • Series/Revision:
    Series A
  • Weight:
    0.16 kg
  • Estimated shipping dimensions:
    14.5x3.5x13.2cm
  • 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 Use Cases Installation & Integration Communication & Connectivity

Features:

  • Bridge Between SLC 500 Open Controller Logic and Standard VGA Display Technology
  • Integrates High-Quality Video Signal Output with Direct Rack-Mount Connectivity
  • Functions Seamlessly with SLC 500 Open Controller Systems and Standard VGA Monitors
The 1747-OCVGA1/A serves as the dedicated VGA video interface module in an SLC 500 Open Controller rack, enabling direct graphical output from the controller to external display devices. It continuously processes internal controller data and converts it into standard VGA signals (640x480 resolution, 60 Hz refresh rate), transmitting these signals through a standard 15-pin D-sub connector to support real-time visualization of system operations and diagnostic information. Direct video output is standard with the 1747-OCVGA1/A, eliminating the need for separate industrial PCs or complex network infrastructure solely to display basic HMI screens or controller status data. The 1747-OCVGA1/A addresses the challenge of limited local visibility in complex automation environments by providing built-in video capability directly at the PLC rack level.

The 1747-OCVGA1/A delivers essential visualization functions critical to efficient system operation, and serves as a vital component of the local monitoring infrastructure, directly enhancing the accessibility and maintainability of the overall control system. One 1747-OCVGA1/A module can be installed per SLC 500 Open Controller chassis to provide dedicated video output capability. The 1747-OCVGA1/A occupies a single slot position within the rack and integrates seamlessly with the existing SLC 500 modular architecture.

For applications requiring enhanced operational flexibility, the 1747-OCVGA1/A allows technicians to connect ruggedized VGA displays directly at the machine level for onsite troubleshooting and performance verification. In addition to standard video output functionality, the 1747-OCVGA1/A enables immediate visual confirmation of controller states without reliance on external computing hardware. Using this approach, maintenance personnel can monitor system health in real-time at the controller location. If operators need to diagnose process anomalies or verify controller performance, they can simply connect a standard VGA monitor to the 1747-OCVGA1/A and obtain instant graphical feedback of internal system status.

The 1747-OCVGA1/A Allen-Bradley Interface Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1747-OCVGA1/A Interface 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 1747-OCVGA1/A Interface Module Specs

General

  • Manufacturer Allen-Bradley
  • Model 1747-OCVGA1/A
  • Condition New Original ready stock
  • Product Family 1747-OCVGA1,1747-OCVGAE
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.
  • HMI Integration: Directly connecting a VGA-compatible monitor to an Open Controller for local data visualization without a standalone industrial PC.
  • Embedded Control Systems: Used in applications where the "Open Controller" (an SLC 500 processor capable of running PC-based software like MS-DOS or Windows NT) requires a dedicated display for operator feedback.
  • Machine Diagnostics: Providing real-time visual status updates and error codes on a standard VGA screen in industrial environments.
  • Power Down: Always turn off power to the 1746 chassis before inserting or removing the module to avoid backplane damage.
  • Alignment: Slide the module into the card guides and secure the top and bottom retainer clips.
  • Driver Requirements: The module typically ships with a disk containing specific video drivers required for the operating system (e.g., DOS or Windows NT) to recognize the hardware.
  • System Configuration: Integration is managed through the Open Controller API, which allows developers to write software that interacts with the I/O backplane and the video interface.
  • Video Output: Features a standard 15-pin VGA port for connection to monitors.
  • Backplane Interaction: Draws its power (5V DC and 24V DC) directly from the SLC backplane and communicates with the processor via the internal 1746 chassis bus.
  • Network Role: While primarily a video module, it is often paired with the 1747-OCVGAE version, which adds Ethernet connectivity to the video interface for remote networking.
  • Physical Protection: Provides up to 500V DC field-wiring-to-backplane isolation to protect the main processor from electrical noise or surges on the video cable.
Description
The Allen-Bradley 1747-OCVGA1/A is a specialized video interface module designed for the SLC 500 Open Controller platform. This specific 1747-OCVGA1/A unit serves as a bridge between industrial control logic and standard visual display technology, allowing the controller to output high-quality VGA signals. By integrating the 1747-OCVGA1/A into a chassis, users can establish a direct graphical link to the system's internal processes, facilitating real-time monitoring and data visualization through a standard monitor interface.

This 1747-OCVGA1/A was engineered specifically to handle the challenge of limited local visibility in complex automation environments. In many traditional setups, operators struggle to diagnose system states without a separate, expensive industrial PC; the 1747-OCVGA1/A solves this problem by providing a built-in video port directly on the PLC rack. This design eliminates the need for redundant hardware and complex networking layers just to view basic HMI (Human-Machine Interface) screens or diagnostic data.

In practical application, the 1747-OCVGA1/A is often deployed in high-density manufacturing cells where space is at a premium. For instance, a technician can connect a ruggedized VGA display directly to the 1747-OCVGA1/A to perform onsite troubleshooting of an SLC 500 Open Controller. By using the 1747-OCVGA1/A in this scenario, the facility solves the issue of "blind" operation, ensuring that maintenance teams have immediate, visual confirmation of controller performance right at the machine level.
Revisions

Revision Part #

Also known as

1747-OCVGA1 Ser A
1747-OCVGA1/A, Series A, Rev A
Alternative Names
1747-OCVGA1 1747-OCVGAE 1747-OCF
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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.
What is the 1747-OCVGA1/A module?
The 1747-OCVGA1/A is a specialized video interface module designed for the SLC 500 Open Controller platform, enabling the controller to output VGA signals for direct visual display.
How does the 1747-OCVGA1/A improve system visibility?
By providing a built-in VGA output directly from the PLC chassis, it allows operators to monitor system status and diagnostics without needing an external industrial PC.
Why is the 1747-OCVGA1/A valuable for SLC 500 Open Controller systems?
It enhances operational efficiency by providing direct, real-time visual feedback from the controller, simplifying monitoring and improving overall system responsiveness.

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