Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
Operating as a central visualization bridge in modern control architectures, the Mitsubishi Electric GT2508-STBD graphic operation terminal delivers reliable performance for machine-level monitoring. This high-performance HMI features an 8.4-inch TFT color display with SVGA resolution (640 x 480 pixels), providing clear system diagnostics and process representation in space-constrained industrial panels. Engineered for integration with MELSEC PLCs and third-party controllers, it incorporates multi-touch capabilities to allow gestures such as pinching, zooming, and scrolling. The unit operates on standard 24 VDC power, features a black bezel, and hosts extensive connectivity interfaces, including Ethernet, serial, and USB ports to handle high-speed data transfers and logging.
| Parameter | Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Identifier | GT2508-STBD |
| Series | GOT2000 / GT25 |
| Display Size | 8.4 Inches |
| Display Type | TFT Color LCD |
| Resolution | SVGA (640 x 480 pixels) |
| Backlight Unit | LED (Non-replaceable, long-life) |
| Rated Input Voltage | 24 VDC (+25%, -20%) |
| Frame Color | Black |
| Memory Capacity | User Memory: 32 MB |
| Panel Cutout Dimensions | 227 mm x 176 mm |
| Operating Temperature Range | 0 to 55 degC |
| Shipping Weight | 8.0 kg (including secure packaging) |
| Interface Port | Function / Connection Assignment |
|---|---|
| Ethernet Port | 1x RJ45, 100BASE-TX/10BASE-T for PLC communication and network configuration |
| RS-232 Port | 1x D-Sub 9-pin (Male) for legacy controller integration or barcode readers |
| RS-422/485 Port | 1x D-Sub 9-pin (Female) for high-speed differential serial networks |
| USB Host Port | 1x USB Type A (USB 2.0) for connecting external mice, keyboards, or storage |
| USB Device Port | 1x USB Mini-B (USB 2.0) for project upload/download via local PC connection |
The GT2508-STBD serves as a standard form-factor replacement for legacy GOT1000 Series 8.4-inch units. When migrating from older installations, note that while the unit matches standard panel cutout profiles (227 mm x 176 mm), it has a slim-body design requiring less depth clearance inside the cabinet. Project conversion is managed seamlessly through MELSOFT GT Works3 software.
When utilizing the logging and data backup functions, ensure that only industrial-grade SD cards are deployed. Standard consumer-grade SD cards face rapid write-cycle exhaustion under continuous parameter logging regimes, which can lead to file system corruption and system lockups. Ensure at least 100 mm of physical clearance at the rear and top of the unit for unrestricted cooling airflow.
For reliable performance in high-noise environments, the frame ground (FG) terminal must be wired directly to a dedicated Class D electrical ground with a resistance of 100 ohms or less. Avoid running the 24 VDC power lines in the same wire duct as high-voltage AC motor lines or VFD outputs to prevent electrical noise coupling into the sensitive logic boards.
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Returns & Warranty

Operating as a central visualization bridge in modern control architectures, the Mitsubishi Electric GT2508-STBD graphic operation terminal delivers reliable performance for machine-level monitoring. This high-performance HMI features an 8.4-inch TFT color display with SVGA resolution (640 x 480 pixels), providing clear system diagnostics and process representation in space-constrained industrial panels. Engineered for integration with MELSEC PLCs and third-party controllers, it incorporates multi-touch capabilities to allow gestures such as pinching, zooming, and scrolling. The unit operates on standard 24 VDC power, features a black bezel, and hosts extensive connectivity interfaces, including Ethernet, serial, and USB ports to handle high-speed data transfers and logging.
| Parameter | Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Identifier | GT2508-STBD |
| Series | GOT2000 / GT25 |
| Display Size | 8.4 Inches |
| Display Type | TFT Color LCD |
| Resolution | SVGA (640 x 480 pixels) |
| Backlight Unit | LED (Non-replaceable, long-life) |
| Rated Input Voltage | 24 VDC (+25%, -20%) |
| Frame Color | Black |
| Memory Capacity | User Memory: 32 MB |
| Panel Cutout Dimensions | 227 mm x 176 mm |
| Operating Temperature Range | 0 to 55 degC |
| Shipping Weight | 8.0 kg (including secure packaging) |
| Interface Port | Function / Connection Assignment |
|---|---|
| Ethernet Port | 1x RJ45, 100BASE-TX/10BASE-T for PLC communication and network configuration |
| RS-232 Port | 1x D-Sub 9-pin (Male) for legacy controller integration or barcode readers |
| RS-422/485 Port | 1x D-Sub 9-pin (Female) for high-speed differential serial networks |
| USB Host Port | 1x USB Type A (USB 2.0) for connecting external mice, keyboards, or storage |
| USB Device Port | 1x USB Mini-B (USB 2.0) for project upload/download via local PC connection |
The GT2508-STBD serves as a standard form-factor replacement for legacy GOT1000 Series 8.4-inch units. When migrating from older installations, note that while the unit matches standard panel cutout profiles (227 mm x 176 mm), it has a slim-body design requiring less depth clearance inside the cabinet. Project conversion is managed seamlessly through MELSOFT GT Works3 software.
When utilizing the logging and data backup functions, ensure that only industrial-grade SD cards are deployed. Standard consumer-grade SD cards face rapid write-cycle exhaustion under continuous parameter logging regimes, which can lead to file system corruption and system lockups. Ensure at least 100 mm of physical clearance at the rear and top of the unit for unrestricted cooling airflow.
For reliable performance in high-noise environments, the frame ground (FG) terminal must be wired directly to a dedicated Class D electrical ground with a resistance of 100 ohms or less. Avoid running the 24 VDC power lines in the same wire duct as high-voltage AC motor lines or VFD outputs to prevent electrical noise coupling into the sensitive logic boards.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|