Introduction
In modern factory automation, the Human Machine Interface (HMI) serves as the critical link between operators and the automated processes they oversee. Effective HMI commissioning is essential for ensuring operators can interact with the system efficiently and maintain clear visibility into process statuses, alarms, and data trends. The Mitsubishi GOT2000 series, including models like the GS2110-WTBD-N GOT2000 HMI Display, offers advanced features that, when properly configured, can significantly enhance operational efficiency and system reliability.
This article provides a comprehensive guide for automation engineers tasked with commissioning Mitsubishi GOT2000 series HMI panels. We will cover the hardware specifications of the GOT2000 series, project setup using GT Designer3, PLC communication driver configuration, alarm screen design, and data logging implementation. Additionally, we will compare the GOT2000 series with other leading HMI platforms to highlight its advantages and potential limitations.
GOT2000 Series Hardware Overview
The Mitsubishi GOT2000 series is a versatile range of HMI panels designed to meet various industrial automation needs. Key models include:
GS2110-WTBD-N GOT2000 HMI Display
- Screen Size: 10.4 inches
- Display Type: TFT color LCD with LED backlight
- Resolution: 800 x 600 pixels
- Interfaces:
- Ethernet (10/100BASE-T)
- USB 2.0 (Host and Device)
- RS-422/485
- Mounting Options: Panel mount
- Operating Temperature: 0 to 50°C
- More details: GS2110-WTBD-N Product Page
GT27 Series
- Screen Sizes: 8.4, 10.4, 12.1, and 15 inches
- Display Type: High-resolution TFT color LCD with LED backlight
- Resolution: Up to 1024 x 768 pixels (depending on model)
- Interfaces:
- Ethernet (10/100/1000BASE-T)
- USB 2.0
- RS-422/485
- Additional Features: Support for SD card storage, enhanced graphics capabilities
GT25 Series
- Screen Sizes: 4.3, 7, and 10.4 inches
- Display Type: TFT color LCD with LED backlight
- Resolution: 480 x 272 pixels (4.3-inch model)
- Interfaces:
- Ethernet (10/100BASE-T)
- USB 2.0
- RS-422/485
- Cost-Effective: Suitable for applications with basic HMI requirements
These models offer a range of screen sizes and feature sets to accommodate different application requirements. The GS2110-WTBD-N is a popular choice for its balance of screen real estate and connectivity options.
GT Designer3 Project Setup
New Project Creation
To begin commissioning a GOT2000 HMI, launch GT Designer3 and create a new project. Select the appropriate HMI model (e.g., GS2110) from the device library to ensure compatibility with the hardware.
Screen Resolution and Font Selection
Configure the project settings to match the HMI’s screen resolution. For the GS2110, set the resolution to 800 x 600 pixels. Choose fonts that are legible on the chosen screen size, typically sans-serif fonts like Arial or Helvetica, with sizes between 10 and 14 points for optimal readability.
Object Placement
Arrange HMI objects (buttons, indicators, text fields) thoughtfully to enhance operator usability. Follow these guidelines:
- Consistency: Use consistent spacing and alignment for similar objects.
- Grouping: Group related objects together (e.g., all start/stop buttons in one area).
- Hierarchy: Use larger objects for more important functions and smaller ones for less critical information.
PLC Communication Driver Configuration
MELSEC Protocol
The GOT2000 series supports the MELSEC protocol, Mitsubishi’s proprietary communication protocol for PLCs. To configure the communication driver:
- Open the Communication Settings dialog in GT Designer3.
- Select “MELSEC” as the protocol.
- Enter the PLC’s IP address or node address.
- Set the communication parameters (baud rate, data bits, parity) to match the PLC configuration.
Ethernet/RS-422 Connection
For Ethernet connections:
- Use a standard CAT5/CAT6 cable.
- Ensure both the HMI and PLC are on the same subnet.
- Verify network settings (IP addresses, subnet masks) are correctly configured.
For RS-422 connections:
- Use the Mitsubishi GT15-75ABUS2L HMI Communication Module for reliable data transmission.
- Configure the module’s settings to match the PLC’s RS-422 parameters.
Refresh Settings
Configure refresh settings to determine how frequently the HMI polls the PLC for data. A common refresh rate is 500 milliseconds, but this can be adjusted based on the application’s requirements and the system’s communication capabilities.
Script Programming
Use GT Designer3’s built-in script editor to create custom communication scripts if needed. This allows for more complex data handling and communication sequences.
Alarm Screen Design and Configuration
Alarm Categories
Define alarm categories to organize alarms by type (e.g., mechanical, electrical, process). This categorization simplifies alarm management and response.
Priority Levels
Assign priority levels (e.g., low, medium, high) to alarms to help operators prioritize their responses. High-priority alarms should trigger immediate operator notifications.
Alarm History
Configure the HMI to log alarm events to the SD card or internal memory. This allows operators to review past alarms and analyze alarm trends.
Notification Methods
Implement multiple notification methods:
- Visual Alerts: Use flashing icons or color changes to indicate active alarms.
- Audible Alerts: Configure the HMI to play sounds for critical alarms.
- Remote Notifications: Use network capabilities to send alarm notifications to remote operators or systems.
Data Logging and Trend Recording
SD Card Logging
Leverage the GOT2000’s SD card slot for data logging. Configure the HMI to write process data, alarms, and system events to the SD card at specified intervals.
Sampling Interval
Set the sampling interval based on the required data granularity. For example, for fast-changing processes, a 100-millisecond interval might be appropriate, while for slower processes, a 1-second interval could suffice.
CSV Export
Enable CSV export functionality to allow operators to download logged data for analysis in external tools like Excel or statistical analysis software.
Trend Display Configuration
Configure trend displays to visualize logged data over time. Use GT Designer3’s trend graph objects to create customizable trend displays that operators can view in real-time or review historical trends.
Comparison Table: GOT2000 HMI vs Competing HMI Platforms
Analysis
- Screen Size Options: The GOT2000 series offers a wide range of screen sizes, comparable to the Delta DOP series and Siemens TP Series.
- Communication Protocols: The GOT2000 supports a comprehensive set of protocols, including Mitsubishi’s proprietary MELSEC and CC-Link, providing robust connectivity options.
- Data Logging Capability: All platforms offer similar data logging features, with SD card and internal memory options.
- Programming Software: GT Designer3 is a powerful tool, but engineers familiar with other platforms may find DOPSoft or WinCC more intuitive.
FAQ
Q1: Can I use the GOT2000 HMI with non-Mitsubishi PLCs?
Yes, the GOT2000 series supports multiple communication protocols, including Modbus TCP and Ethernet/IP, allowing integration with non-Mitsubishi PLCs.
Q2: How do I backup my HMI project?
Use GT Designer3’s project backup feature to create a backup file. Alternatively, you can copy the project files to an external storage device like a USB drive.
Q3: What is the maximum number of alarms I can configure on the GOT2000 HMI?
The maximum number of alarms depends on the model and the amount of memory available. For the GS2110, you can configure up to 10,000 alarms.
Conclusion
Commissioning a Mitsubishi GOT2000 HMI involves careful consideration of hardware specifications, project setup, communication protocols, alarm management, and data logging. By following the guidelines outlined in this article, automation engineers can ensure the HMI is configured to meet the operational needs of the factory floor.
The GOT2000 series, exemplified by the GS2110-WTBD-N, offers robust features and flexibility that make it a strong contender in the HMI market. However, engineers should weigh these benefits against the specific requirements of their applications and consider the comparative strengths of competing platforms like the Delta DOP series or Siemens TP Series.
For more information on Mitsubishi GOT2000 HMIs, visit the GS2110-WTBD-N Product Page. If you need to add communication capabilities, consider the Mitsubishi GT15-75ABUS2L HMI Communication Module.
—
Call to Action: If you’re looking to upgrade your HMI systems or need assistance with commissioning, contact our team of experts for personalized guidance and support.
