Mitsubishi GT27 HMI Application Guide

Video playback: Play pre stored video files directly on the HMI screen (such as device operation tutorials, safety instructions, maintenance guidance). This is more intuitive than traditional text alarms, especially suitable for training new employees.

FTP file transfer: GOT has built-in FTP server/client function, which can automatically upload recorded video files to the upper computer or server for centralized archiving.

Engineering implementation:

Multimedia unit (model such as GT27-MMU) and supported USB camera need to be configured.

Create video display objects in GT Designer 3 and set recording trigger conditions (such as through PLC internal variables or screen buttons).

Set the FTP destination address, username, password, and upload time (such as automatically transferring the previous day's video every morning).

Application value: For unmanned stations such as pump stations and distribution rooms, the video recording function provides post event visual evidence, reducing on-site inspection costs.

GOT Drive: Integrated debugging and diagnosis of servo amplifier

A major feature of GT27 is its direct connection to Mitsubishi MR-J4 and MR-JE series servo drives, enabling the setting, trial operation, fault diagnosis, and monitoring of servo parameters without the need for a personal computer or specialized software (such as MR Configurator2).

Functional details:

Parameter setting: Modify the electronic gear ratio, gain, position command mode and other parameters of the servo amplifier through the GOT screen, and backup the parameters to the GOT ROM.

Trial operation: Rotate the servo motor at low speed in a jog manner, check the wiring and load conditions.

Status monitoring: Real time display of servo motor current, speed, position deviation, alarm codes, and other information.

Fault diagnosis: When the servo alarm occurs, GOT directly displays the alarm content and suggested countermeasures, and supports historical alarm query.

Advantage:

Reduce tool dependency: on-site debugging only requires HMI, no need to carry a laptop.

Reduce training costs: The user interface is unified, and electricians can quickly complete servo debugging.

Improve maintenance efficiency: In the event of a malfunction, operators can immediately view diagnostic information, reducing downtime.

Connection method: Connect the GOT to the servo drive through a dedicated communication cable (or via the CC Link IE field network of the PLC). Select the "MELSERVO" driver protocol in GT Designer 3 and configure the station number.

Human body sensor: automatic wake-up and energy saving

The front panel of GT27 is equipped with a human sensor. When the operator approaches the GOT, the sensor automatically detects human body heat or movement, and the GOT will wake up from standby mode and light up the screen. After personnel leave for a period of time, the screen automatically dims or turns off to extend backlight life and save energy.

Engineering setup:

The sensing distance and sensitivity can be adjusted through the extended settings menu of GOT.

The initial screen after wake-up can be customized (such as the main menu or recent operation screen).

In clean rooms or explosion-proof areas, human sensors can reduce physical contact and lower the risk of contamination.

Attention: Sensors are sensitive to environmental temperature and should not be installed near direct sunlight or heat sources, otherwise they may trigger incorrectly. In low-temperature environments, the infrared detection distance may be shortened.

Expand storage and data management

The GT27 has 57 MB ROM and 128 MB RAM. ROM is used to store engineering files, recipe data, alarm history, scripts, etc; RAM is used for program execution. For applications that require a large amount of data recording, such as long-term trend collection, formula management, and production statistics, users can expand through the following methods:

USB storage: The front USB Host port can be connected to a USB flash drive (FAT32 format) for data log export, recipe upload and download, and screen update.

SD card (optional): The GT27 can be installed with an SD storage card (with an optional expansion unit), with a capacity of over 32 GB, suitable for long-term data archiving.

FTP server: Regularly uploads data to a central server through the network.

Backup and Recovery: With the maintenance platform function of GOT, all system settings, engineering files, and parameters can be backed up to storage media, and one click recovery is supported. This is very useful when replacing spare parts - inserting a new GOT into the storage card can restore it to its original device state, reducing reconfiguration time.

Communication and network capabilities

GT27 supports multiple industrial communication protocols and physical interfaces:

Serial communication: RS-232/422/485, capable of connecting Mitsubishi FX series PLCs, frequency converters, temperature controllers, etc.

Ethernet: Standard RJ45 interface, supports TCP/IP, UDP, SLMP, MELSEC communication protocols, and can also be used to connect to upper computers, SQL databases, MES systems.

CC Link: Can serve as a CC Link intelligent device station, directly participating in fieldbus data exchange.