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.