The GT1675-VNBA is a 15-inch TFT LCD graphic operator terminal from Mitsubishi Electric, part of the GOT1000 (GT16) series of human-machine interfaces. It features an 800×600 VGA resolution display, built-in Ethernet connectivity, and compatibility with the full range of Mitsubishi FA communication protocols. The GT1675-VNBA is available through Atlantech Drives — quote within 24–48 hours, worldwide express shipping, 12-month warranty.
What Is the Mitsubishi GT1675-VNBA?
The GT1675-VNBA belongs to the GT1670 sub-family within the GOT1000 GT16 series. The 15-inch panel size and VGA resolution make it suited for machine control stations, panel operator interfaces, and production line supervision displays where operator readability and screen real estate are priorities. The -VNBA suffix indicates the standard bezel colour (black), built-in Ethernet (10/100BASE-TX), and compatibility with the GOT1000 option unit expansion slot. The GT16 series uses GT Designer3 as its configuration software and supports multi-language display, alarm history, recipe management, and data logging functions natively without requiring additional software licences.
Key Technical Specifications
- Display size: 15.0 inch TFT LCD
- Resolution: 800 × 600 pixels (VGA)
- Colours: 65,536 colours
- Backlight: LED (no lamp replacement required)
- Built-in interfaces: Ethernet (10/100BASE-TX RJ-45), RS-232, USB host, USB device
- Memory: 57 MB user area (project + data storage)
- SD card slot: Yes (data logging, recipe, project transfer)
- Applicable controllers: MELSEC-Q, MELSEC-L, MELSEC-FX, MELSEC iQ-R, MELSEC iQ-F, third-party PLCs via optional communication units
- Communication protocols: MELSEC Ethernet (MC Protocol), SLMP, CC-Link IE Field (with option unit)
- Power supply: 24 V DC ±10%, approx. 1.8 A
- IP rating (front panel): IP67
- Operating temperature: 0 to 55°C
- Dimensions (W × H × D): 400 × 300 × 60 mm (approx., including mounting bracket)
Series Comparison & Selection Guide
Within the GOT1000 GT16 range, the GT1675-VNBA sits above the GT1665 (12.1″) and below the GT1695 (19″) in display size. Key distinctions within the GT16 sub-family relevant to selection:
- GT1675-VNBA vs GT1675M-VTBA: The -VTBA variant replaces the standard Ethernet interface with a multi-communication unit interface, offering greater protocol flexibility at the cost of requiring an option communication unit for network connectivity. Choose the -VNBA when standard MELSEC Ethernet is sufficient.
- GT1675-VNBA vs GT1685-VNBA: The GT1685 provides the same 15-inch panel with higher resolution (1024×768 XGA) for applications requiring finer graphical detail or denser data display. The GT1675 is adequate for most machine operator panels; the GT1685 is preferred for SCADA-style overview screens.
- Screen update performance: The GT1675-VNBA achieves a screen change time of approximately 0.3 seconds for standard projects, which is acceptable for operator panels but should be evaluated for high-speed display applications requiring sub-200ms transitions.
Maintenance Tips
- The GT1675-VNBA uses an LED backlight with a rated service life of 50,000 hours at 25°C. Unlike earlier CCFL-backlit GOT panels, no backlight replacement is required during normal service life. However, if the display dims noticeably before this threshold, check the ambient temperature at the panel — operation near the 55°C upper limit significantly accelerates LED lumen depreciation.
- Clean the touchscreen surface with a soft cloth dampened with water or isopropyl alcohol only. Solvent-based cleaners degrade the resistive touch coating and reduce touch sensitivity over time. Never use abrasive materials.
- Periodically back up the GOT project to SD card using the GT Designer3 «Write to GOT» function or the GOT’s own SD card utility. In the event of a panel failure, a replacement GT1675-VNBA can be restored to operational status by SD card restore without needing a PC connection on-site.
- Check the GOT’s system memory usage via the utility menu (Main Menu → Memory) annually. Large alarm history logs and data logging files accumulate over time and can reduce available project memory below the threshold required for project updates.
Frequently Asked Questions
Q: Can the GT1675-VNBA communicate directly with Allen-Bradley or Siemens PLCs?
A: Yes, but a compatible communication option unit must be installed in the GOT’s option slot. For Allen-Bradley, the GT15-J71E13-T (EtherNet/IP) unit enables connection to ControlLogix and CompactLogix systems. For Siemens S7, the GT15-J71S91 unit is used. Check the GOT1000 Connection Manual for the full third-party compatibility list.
Q: Is GT Designer3 software required for every project modification?
A: Yes. GT Designer3 (available free from Mitsubishi Electric FA) is the mandatory configuration tool for all GOT1000 GT16 series panels. Project modifications cannot be made directly on the GOT panel — all changes must be designed in GT Designer3 and transferred to the panel via USB, Ethernet, or SD card.
Q: What is the difference between USB host and USB device ports on the GT1675-VNBA?
A: The USB host port (Type A) is used for connecting USB memory sticks for project transfer, data logging export, and recipe management. The USB device port (Type B) connects the GOT to a PC running GT Designer3 for direct project download and monitoring — it functions as the primary PC connection interface when Ethernet is not used.
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