HCMGC1-0 B & R Automation
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The B & R Automation HCMGC1-0 is a PLC module from the HCM Maestro PLC Modules series. It features a resolution of 800 x 600 pixels, with a pixel frequency of 36 MHz and a picture frequency of 56 Hz. The unit includes one serial and one AT compatible keyboard port, an RGB PGA standard monitor port, and offers an RGB positive analog output signal at 1 V.
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Product Description:
The HCMGC1-0 is an interface module produced by B&R Automation for the HCM Maestro PLC Modules series. Designed for installation in a PLC backplane, the unit supplies video and peripheral connectivity so operators can interact directly with control logic through standard monitors, keyboards, and pointing devices. By routing display signals and human-machine interface inputs through a single board, it simplifies integration of visualization terminals in industrial automation cabinets. The board occupies a single slot and communicates with the PLC CPU over the Maestro backplane, forwarding encoded video timing and peripheral scan codes in real time.
It drives flat-panel or CRT displays at a native resolution of 800 x 600 pixels, so SCADA graphics appear without scaling artifacts. The pixel clock runs at 36 MHz, meaning each frame is scanned fast enough for flicker-free rendering at the specified picture frequency of 56 Hz. Video data leave the board as an RGB positive analog (1 V) signal, and horizontal and vertical synchronization are provided as positive TTL pulses. This format supports monitors that use separate sync lines and standard analog color inputs.
Internal timing for the display section is derived from a line frequency of 35 kHz, which sets the horizontal scan rate for the connected monitor. User input is accepted through two dedicated keyboard connectors: a legacy IBM-compatible port for 1 x AT-compatible keyboard operation and an auxiliary channel implemented as a 1 x serial (RS-232) channel for custom keypads. A second serial header furnishes a mouse interface, while display control wiring uses the configurable RGB (PGA Standard) monitor port to align pin assignments with panel wiring harnesses. These connections allow the PLC to handle screen output and operator input without requiring separate converter boxes.
Frequently Asked Questions about HCMGC1-0:
Q: What is the display resolution supported by the HCMGC1-0 module?
A: The HCMGC1-0 module provides a screen resolution of 800 x 600 pixels.
Q: How can a monitor be connected to the HCMGC1-0 module?
A: Monitor connection is available via an RGB port using the PGA standard on the HCMGC1-0.
Q: What keyboard connectivity options does the HCMGC1-0 module provide?
A: The HCMGC1-0 supports keyboard input through one RS232 serial port and one AT-compatible port.
Q: What type of video output signal is available on the HCMGC1-0?
A: The output video signal of the HCMGC1-0 is RGB positive analog at 1 V.
Q: Which mouse interface is supported by the HCMGC1-0 module?
A: A mouse can be connected to the HCMGC1-0 using a single RS232 serial port.
