Mitsubishi GT27 HMI Application Guide

MITSUBISHI ELECTRIC GT27 Series Multi Touch HMI: Function Analysis and Engineering Application Guide

Positioning and Overview: Multi touch Innovation of Industrial Tablets

The Mitsubishi Electric GT27 series is an upgraded version of the GT25, positioned as a flagship level graphic operating terminal (GOT), with screen sizes ranging from 5.7 inches to 15 inches and resolutions supporting XGA, SVGA, and VGA. Its biggest breakthrough is the introduction of multi touch and gesture operations in industrial HMI - users can control the device like operating a tablet through actions such as zooming and sliding with two fingers, significantly improving operational efficiency and intuitiveness.

The GT27 series is not only a touch screen, but also an industrial information platform that integrates data acquisition, remote monitoring, multimedia processing, and servo drive debugging. Its software and hardware configuration includes 57 MB ROM (for storing project files, recipes, etc.), 128 MB RAM (for running), and two front USB ports (one Host and one Device), supporting the connection of mice, keyboards, barcode scanners, RFID readers, and USB drives for project transfer and data recording.

This series supports multiple communication protocols (seamlessly integrated with Mitsubishi PLCs, inverters, servo drives, etc.), optional wireless modules, and built-in web servers (GOT Mobile function), allowing engineers to monitor production data in real time through smartphones, tablets, or PC browsers.

Multi touch and gesture operation: improving human-machine interaction efficiency

Traditional industrial touch screens are mostly resistive single touch, with slow operation response and no support for complex gestures. The GT27 adopts special simulated touch screen technology to achieve true multi touch and gesture recognition. Engineers or operators can:

Double finger zoom: Zoom in to view machine alarm details, process flow charts, or trend curves, and zoom out to have a global overview.

Slide and scroll: Quickly browse through long lists, alarm records, or recipe parameters without repeatedly clicking the up and down arrows.

Rotation gesture: can be used to adjust analog settings or control device orientation (such as camera gimbal).

These functions are highly valuable in complex production monitoring. For example, in the parameter setting interface of the injection molding machine, the operator can directly zoom in and out of the mold temperature curve with gestures to quickly locate abnormal points; On the conveyor line monitoring page, slide to switch between camera screens at different workstations.

Engineering tip: When using gesture function, enable "gesture events" for the screen or object in GT Designer 3, and assign corresponding scripts or actions for each gesture (such as Pinch, Flick). At the same time, it should be noted that gesture operations may conflict with the response logic of ordinary buttons, and design should avoid defining both touch buttons and gesture areas in the same area.

GOT Mobile: Web Server Solution for Remote Monitoring

GT27 has a built-in web server that can publish monitoring pages and support access through standard browsers. Users do not need to install a dedicated app, they only need to enter the IP address of GOT within the network to view device status, alarm information, production data, and even perform limited operations (with permission control) in real time from their mobile phones, tablets, or PCs.

Main features:

Real time data update: Through regular refreshing or WebSocket technology (depending on firmware version), the current value, motor speed, temperature, etc. of the PLC can be displayed.

Trend chart display: It can display historical data curves for remote fault analysis.

Multi language support: The browser can display different texts according to language settings.

Security: Supports user authentication and HTTPS encryption (optional) to prevent unauthorized access.

Typical application scenarios:

Factory management personnel check the OEE of the production line through the company's internal network in the office.

The maintenance engineer accessed the on-site GOT via VPN during a business trip to diagnose the cause of the malfunction.

Equipment manufacturers provide remote debugging support to customers without the need for on-site visits.

Configuration points:

In GT Designer 3, check the "GOT Mobile" function and set the web page layout (which can reuse HMI screens or design a simplified version separately).

Pay attention to network security: If connecting GOT to the public network, it is recommended to place it in an isolated industrial DMZ area and use a firewall to restrict access to IP addresses.

GOT Mobile does not occupy the running resources of GOT itself, and data collection is independently processed by the GOT backend.

Multimedia functions: recording, playback, and FTP transfer

The GT27 can be connected to a camera through an optional multimedia unit to achieve the following functions:

Record video: Save the live images captured by the camera directly to the storage area of GOT or an external USB drive. For example, installing a camera on the packaging machine can automatically trigger video recording when a malfunction occurs, saving the images before and after the accident for post analysis.