Mitsubishi 8.4-inch Touch Screen GT1265-VNBD – High-Performance HMI for Industrial Automation
Mitsubishi 8.4-inch Touch Screen GT1265-VNBD
Mitsubishi 8.4-inch Touch Screen GT1265-VNBD
Series: Basic model with integrated functions and communication interfaces, larger size.
Screen size: 8.4 inches.
Display colors: 256 colors or more.
Mounting type: Panel mount.
Resolution: VGA (640×480).
Display device: TFT color.
Bezel color: Black.
Power supply: DC24V.
Communication interface: Built-in RS-422.
User storage capacity: 6MB.
Includes USB Device interface.
Standard Ethernet, RS-422/485, and RS-232 interfaces.
Uses analog touch panel.
Touch screen technologies are divided into five types:
Vector pressure sensing (obsolete),
Infrared (low cost but fragile, prone to light interference and distortion on curved surfaces),
Capacitive (good design but hard to solve image distortion),
Resistive (accurate but expensive, easily scratched),
Surface acoustic wave (clear, durable, suitable for various environments, but can be迟钝 by water or dust).
The Mitsubishi GT1265-VNBD is an 8.4-inch touchscreen HMI (Human Machine Interface) unit belonging to the GOT1000 series, recognized as a basic model with a larger physical footprint that offers a comprehensive range of integrated functions and communication interfaces. It features an 8.4-inch TFT color display with a VGA resolution of 640 × 480 pixels, capable of rendering 256 colors or more for clear and informative visual output. The unit is designed for panel mounting and comes in a black housing, operating on a DC24V power supply.
In terms of connectivity, the GT1265-VNBD is equipped with a built-in RS-422 communication interface, along with standard Ethernet, RS-422/485, and RS-232 ports. It also includes a USB Device interface, enabling easy data transfer and connection to external devices. The user storage area offers a capacity of 6MB, allowing for efficient management of screen data and application files. The touch operation is based on analog touch panel technology, providing responsive and accurate input.
From a technical perspective, touchscreen technologies can be categorized into five fundamental types: vector pressure sensing, resistive, capacitive, infrared, and surface acoustic wave (SAW).
●Vector pressure sensing technology has become obsolete and is no longer in practical use.
●Infrared touchscreens are low-cost but suffer from fragile bezels, susceptibility to light interference, and distortion on curved surfaces.
●Capacitive touchscreens offer a well-designed interface, yet they face challenges in fully resolving image distortion issues.
●Resistive touchscreens provide accurate touch positioning, but they are relatively expensive and prone to damage from scratches and wear.
●Surface acoustic wave (SAW) touchscreens overcome many of the drawbacks found in other technologies. They offer excellent clarity and durability, making them suitable for a wide range of environments. However, they can become less responsive or even non-functional when the screen surface is contaminated by water droplets or dust.
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