Configured for video graphic signal generation and display output execution within open architecture control environments, the Allen-Bradley 1747-OCVGA1 (1747OCVGA1 Open Controller - VGA Interface Module) provides direct physical/electrical execution across rack chassis backplane interfaces.

Model Suffix Nomenclature Analysis

• 1747-OCVGA1: Base catalog designation referencing an open controller module equipped with onboard VGA interface circuitry for industrial display systems.
• 1747OCVGA1: Alternative spare part tracking code representing the identical physical hardware configuration without hyphens.
• 1747-OCVGA1/A: Revision identifier indicating specific hardware release iterations and baseline engineering changes.

Hardware Specifications

Backplane Bus Communication and Firmware Architecture

The module interfaces directly with backplane bus communication velocity and firmware flash compatibility frameworks within SLC 500 rack assemblies. I/O density scaling relies on proper slot configuration to maintain deterministic data transmission between the processor and video subsystems. Backplane current loading requires strict adherence to system power budgets, drawing operating current directly from the 5 VDC chassis bus interface.

Package Ordering Information

• 1 x Allen-Bradley 1747-OCVGA1 Open Controller - VGA Interface Module hardware unit
• 1 x Standard VGA display port adapter connector assembly
• 1 x Factory hardware technical documentation sheet

Physical Installation and Mounting Guidelines

• Chassis Slot Placement: Insert the module into any available open slot within the designated SLC 500 rack assembly, ensuring alignment with backplane guide rails.
• Environmental Limits: Maintain ambient operating temperatures between 0 deg C and 60 deg C while keeping relative humidity within 5% to 95% non-condensing parameters.
• Grounding Protocols: Secure the module chassis mounting screws tightly to establish low-impedance earth ground continuity and reduce electromagnetic interference.
• Cable Management: Route external VGA display signal cables away from high-voltage AC power wiring to prevent video signal distortion and display artifacts.

Frequently Asked Questions

• Does this interface module support hot-insertion and removal under power?
  • No, inserting or removing the 1747-OCVGA1 while chassis backplane power is active can cause electrical surges and damage internal circuitry.
• What primary function does this hardware component execute in a control system?
  • The unit generates VGA graphic output signals to drive industrial monitors and operator interface displays directly from the controller rack.
• What voltage level is required to power the module internally?
  • The hardware operates using a standard 5 VDC power supply drawn directly from the chassis backplane bus.
• What environmental humidity range is permissible during operation?
  • The module functions reliably within relative humidity levels spanning from 5% to 95% under non-condensing conditions.
• Are firmware updates supported through the system communication architecture?
  • Yes, firmware flash compatibility allows system updates via connected programming tools without replacing physical hardware components.
• What is the official manufacturing status of this specific hardware model?
  • The unit has been officially discontinued by the manufacturer, requiring reliance on legacy maintenance and spare parts inventory channels.
• How should the module be secured inside the equipment rack?
  • Fasten the integrated top and bottom retaining screws securely to the metal chassis to ensure mechanical stability and proper ground continuity.
• What precautions should be taken when routing the display cable?
  • Ensure shielded VGA cables are utilized and separated from high-voltage power conduits to minimize electrical noise interference on the video output.