The GT2508-VTBA is an 8.4-inch TFT LCD graphic operator terminal from Mitsubishi Electric, belonging to the GOT2000 GT25 series — the current-generation human-machine interface platform combining multi-interface connectivity, high-speed display processing, and enhanced security functions in a compact panel format. Atlantech Drives holds stock of the GT2508-VTBA. Contact us for fast worldwide delivery and competitive pricing.
What Is the Mitsubishi GT2508-VTBA?
The GT2508-VTBA belongs to the GT2508 sub-family within the GOT2000 GT25 series. The 8.4-inch panel size and 800×600 SVGA resolution make it suited to compact machine operator panels and equipment-mounted displays where a larger GOT2000 model would be physically impractical. The -VTBA suffix indicates the standard black bezel variant with built-in VGA-resolution display, multi-interface communication capability, and compatibility with the GOT2000 option unit expansion slot. The GT25 series uses GT Designer3 Version 1.230M or later as its configuration software and offers significantly enhanced performance over the predecessor GOT1000 GT15 series — faster screen rendering, built-in data logging, recipe management, alarm history, and remote monitoring via Ethernet are all standard without additional option software licences.
Key Technical Specifications
- Display size: 8.4 inch TFT LCD
- Resolution: 800 × 600 pixels (SVGA)
- Colours: 65,536 colours
- Backlight: LED (rated 50,000 hours at 25°C)
- Touch panel: Analog resistive
- Built-in interfaces: Ethernet (10/100BASE-TX), RS-232, RS-422/485, USB host, USB device
- Built-in memory: 57 MB user area
- SD card slot: Yes (data logging, recipe, project transfer, backup)
- Applicable controllers: MELSEC iQ-R, iQ-F, MELSEC-Q, MELSEC-L, MELSEC-F, third-party PLCs via option units
- Communication protocols: MELSEC Ethernet (MC Protocol), SLMP, CC-Link IE Field (with option unit)
- Power supply: 24 V DC ±10%, approx. 0.75 A
- IP rating (front panel): IP67
- Operating temperature: 0 to 55°C
- Dimensions (W × H × D): 243 × 192 × 56 mm (approx.)
Architecture & Design Overview
The GT2508-VTBA is built on the GOT2000 platform architecture, which separates the display rendering engine from the communication processing engine using a dual-processor design. This architecture ensures that screen update performance is not degraded by communication traffic — a common issue on single-processor HMI panels where heavy network communication directly impacts display refresh rate. The built-in Ethernet port supports simultaneous connections to multiple MELSEC controllers using MELSEC Ethernet protocol, and also provides the GOT2000’s remote monitoring function (GT SoftGOT2000 or web browser access via the built-in web server) without requiring a separate communication module. The GT25 series option unit slot accepts a range of expansion communication units — including CC-Link IE Field, PROFIBUS-DP, and EtherNet/IP interfaces — allowing the GT2508-VTBA to communicate with third-party PLCs and field networks beyond the built-in interface capability. The SD card slot enables background data logging at intervals down to 1 second without impacting display performance, with data stored in CSV or binary format for retrieval via network or physical card removal.
Expert Tips
- When connecting the GT2508-VTBA to a MELSEC iQ-R or MELSEC-Q CPU via Ethernet, use the MELSEC Ethernet (MC Protocol) connection type in GT Designer3 and configure the GOT IP address in the communication settings before downloading the project — the factory default GOT IP address is 192.168.3.18, which should be updated to match the site network scheme to avoid IP conflicts.
- The GT2508-VTBA’s built-in RS-422/485 port can be configured as either RS-422 (4-wire) or RS-485 (2-wire) in GT Designer3 communication settings. For long-distance serial connections to MELSEC-FX CPUs or third-party Modbus devices, RS-485 2-wire is typically used — verify termination resistor requirements at both ends of the RS-485 bus, as the GOT’s internal termination resistor is switchable via a DIP switch on the rear of the unit.
- Use the GOT2000’s Security function in GT Designer3 to implement operator-level access control — assign different security levels (1–15) to screen transitions and write operations to prevent unauthorised parameter changes on production equipment. Security level passwords are stored in the GOT and do not require PLC-side programming.
- For projects using the data logging function, enable the «Ring buffer» option to automatically overwrite the oldest log data when the SD card fills — without this setting, logging stops when the card is full, which can cause undetected gaps in production data records.
Frequently Asked Questions
Q: Is the GT2508-VTBA compatible with GOT1000 (GT15/GT16) projects created in GT Designer3?
A: GOT1000 projects can be converted to GOT2000 format using the GT Designer3 project conversion function. However, manual review and adjustment is required after conversion — screen layouts, object properties, and communication settings may need updating due to differences between the GOT1000 and GOT2000 platforms. Converted projects should be fully tested before deployment.
Q: Can the GT2508-VTBA display video or camera feeds?
A: No. The GT2508-VTBA does not support video input or camera feed display natively. For vision system integration, Mitsubishi offers the GOT2000 Video/RGB input option unit (GT25-VIDEOIF) which enables display of analogue video signals on compatible GT25 models — verify compatibility with the GT2508-VTBA specifically before specifying this option.
Q: What is the difference between GT2508-VTBA and GT2510-VTBA?
A: The GT2510-VTBA is a 10.4-inch model with the same communication interface configuration as the GT2508-VTBA. The GT2508 provides an 8.4-inch 800×600 display; the GT2510 provides a 10.4-inch 800×600 display. Choose based on panel cutout size constraints and required operator viewing distance — the GT2510 is preferable where operator viewing distance exceeds 1 metre.
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