GT2512-STBA is a 12.1-inch TFT LCD touchscreen Human Machine Interface from Mitsubishi Electric’s GOT2000 series, combining a 1024 × 768 XGA resolution display with a dual-core ARM processor, 57 MB user memory, and built-in Ethernet, RS-232, RS-422/485, and USB interfaces for comprehensive industrial HMI functionality. The GT2512-STBA operates on 24 V DC and supports direct connection to MELSEC-Q, iQ-R, iQ-F, FX, and L series PLCs as well as third-party controllers via its multi-protocol communication capability. In stock at Atlantech Drives. Request your quote within 24-48 hours with worldwide shipping and 12-month warranty.
What Is the GT2512-STBA?
The GT2512-STBA is a panel-mount HMI terminal in Mitsubishi Electric’s GOT2000 product family. The part number encodes the key specifications: «GT25» identifies the GOT2000 series mid-range platform, «12» indicates the 12.1-inch display size, «S» denotes the standard function set (as opposed to the advanced «A» variant), «T» specifies the TFT colour LCD display type, «B» indicates the bezel colour (black), and «A» is a regional specification suffix for the standard international version. The GT2512-STBA replaces the GOT1000 series GT1575 as the standard 12-inch HMI solution in Mitsubishi-based automation systems. It runs GT Works3 project files and is configured exclusively using GT Designer3 software, which provides a drag-and-drop screen development environment with a library of over 3,000 pre-built parts including gauges, trend graphs, alarm displays, and recipe management templates. The terminal supports up to 3,000 screens and 10,000 internal devices, with an SD card slot for project backup, data logging CSV export, and recipe data storage.
Key Technical Specifications
- Display Size: 12.1-inch TFT LCD
- Resolution: 1024 × 768 pixels (XGA)
- Colour Depth: 65,536 colours (16-bit)
- Backlight: LED (rated life: 50,000 hours)
- Touchscreen Type: Analog resistive (4-wire)
- CPU: Dual-core ARM (clock speed not published)
- User Memory: 57 MB (project + data storage)
- Built-in Interfaces: Ethernet (100BASE-TX), RS-232 (D-sub 9-pin), RS-422/485 (D-sub 9-pin), USB-A (host), USB-B (device/programming)
- SD Card Slot: SDHC up to 32 GB
- Power Supply: 24 V DC (20.4–26.4 V DC), approx. 17 W
- Panel Cutout: 304 × 228 mm
- IP Rating: IP67 (front panel), IP2X (rear)
- Operating Temperature: 0 °C to 55 °C
- Operating Humidity: 10–90% RH (non-condensing)
- Weight: Approx. 2.1 kg
Compatibility & System Integration
The GT2512-STBA communicates natively with the full range of Mitsubishi Electric PLC platforms via its built-in Ethernet and serial interfaces, including MELSEC iQ-R, iQ-F (FX5U), MELSEC-Q, MELSEC-L, and all FX series controllers. For MELSEC-Q and iQ-R systems, Ethernet connection using the MELSOFT GT connection protocol is the recommended interface, providing fast cyclic data refresh at network scan rates and eliminating the need for a dedicated serial communication module on the PLC side. The built-in RS-422/485 port supports connection to non-Mitsubishi PLCs using pre-installed communication drivers for Siemens S7-200/S7-300, Omron CJ/CS series, Allen-Bradley MicroLogix and SLC-500 (DF1 protocol), Modbus RTU, and over 100 additional third-party controllers — making the GT2512-STBA suitable for multi-vendor machine environments. The USB-A host port supports connection of USB barcode scanners and keyboards for operator data entry functions. Via the GT25’s CC-Link IE Field Network Basic function (available over Ethernet), the HMI can participate in a CC-Link IE network as a device station, enabling device-level network monitoring alongside Q-series master controllers. Up to 4 GOT units can be connected simultaneously to a single MELSEC-Q CPU via Ethernet for multi-panel machine architectures.
Installation Advice
The GT2512-STBA requires a panel cutout of 304 × 228 mm with a tolerance of +0.5/−0 mm — undersized cutouts prevent proper front-panel seating and compromise the IP67 front seal. Use Mitsubishi’s supplied mounting clamps (included in the box) positioned at the correct intervals specified in the GT2512 Hardware Manual (SH-080928); inadequate clamping force distributes panel stress unevenly and can distort the front bezel gasket, reducing IP protection. The 24 V DC power supply wiring should use a minimum conductor cross-section of 0.75 mm² and include a dedicated 2 A fuse per terminal on the supply line — do not share the GOT supply circuit with inductive loads such as solenoid valves or motor starters, as switching transients on a shared supply rail can cause random HMI resets. For Ethernet connection, use CAT5e or CAT6 shielded cable (STP) and connect the shield drain wire to the panel earth at the HMI end — the GT2512 Ethernet port is not isolated and requires a clean ground reference to avoid communication errors in electrically noisy enclosures. When mounting in high-vibration environments (above 4.9 m/s²), verify that the SD card is fully seated and the card door latch is closed — vibration-induced partial SD card ejection causes data logging interruptions that appear as HMI software faults rather than mechanical issues. Allow a minimum 50 mm clearance behind the rear of the HMI for cable bend radius and ventilation — the LED backlight life of 50,000 hours assumes ambient temperatures below 40 °C at the rear of the panel; temperatures above this reduce backlight life proportionally.
Frequently Asked Questions
Q: Can the GT2512-STBA display trend graphs of analogue data logged to the SD card over extended periods?
A: Yes. The GT2512-STBA includes a built-in data logging function that records device values (D registers, analogue module buffer values via auto-refresh) to CSV files on the SD card at configurable intervals from 1 second to 24 hours. The historical trend display object in GT Designer3 can read these CSV files and display logged data as a scrollable time-series graph on screen, providing on-HMI process history review without a separate SCADA system.
Q: Is the GT2512-STBA project format compatible with older GOT1000 series terminals?
A: No — project files are not directly interchangeable between GOT1000 and GOT2000 platforms. GT Works3 includes a project conversion utility that migrates GT Works2 (GOT1000) projects to GOT2000 format, but the conversion requires manual review of any screens using GOT1000-specific parts or communication settings that are not directly mapped in the GOT2000 object library. Allow sufficient engineering time for post-conversion testing, particularly for alarm and recipe management screens which frequently require manual adjustment after migration.
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