Mitsubishi GOT1000 to GOT2000 Migration Guide

Overview

The Mitsubishi Electric GOT1000 Human-Machine Interface (HMI) family—including the GT10, GT11, GT12, GT14, GT15, and GT16 series—has reached its end-of-life (EOL) cycle. As spare parts become scarce and component degradation poses operational risks, industrial operations must migrate to the active GOT2000 platform. The GOT2000 series (comprising the GT21, GT23, GT25, and GT27 lines) delivers superior processing capability, advanced graphic rendering, and modern Ethernet-based physical layers.

This migration guide provides design engineers, systems integrators, and maintenance personnel with the technical specifications, direct hardware crossovers, mechanical changes, and software conversion procedures required to execute a seamless upgrade with minimal production downtime.

Legacy Product Information

The GOT1000 family spanned several performance tiers, utilizing legacy communication hardware and proprietary screen-design databases. Key legacy series include:

• GT10 Series: Low-end, small-format monochrome or basic color displays (3.7" to 5.7") with limited memory and RS-232/RS-422 sub-D or terminal block ports.
• GT11 Series: Basic hand-held and panel-mount 5.7" units, using STN color or monochrome displays.
• GT12 Series: Mid-range 8.4" and 10.4" screens optimized for basic visualization with integrated RS-232 and RS-422/485 serial buses.
• GT14 Series: Advanced micro-HMIs (5.7") that introduced early Ethernet capability, USB host/device connections, and basic data logging.
• GT15 Series: High-performance, modular HMIs (5.7" to 15") featuring expansion slots for specialized bus networks (MELSECNET/10, CC-Link, Q-Bus) and CompactFlash (CF) card slots.
• GT16 Series: Premium multimedia HMIs featuring high-speed processors, video input/output modules, audio interfaces, and built-in Ethernet.

Legacy communication topologies relied heavily on serial protocols, dedicated network interface cards (such as the GT15-C30BS for CC-Link), or direct CPU bus units (GT15-QCBL cables connecting to Q-series PLCs).

Recommended Replacements

When migrating from the GOT1000 to the GOT2000 series, hardware selection should be made based on screen resolution, communication needs, and advanced processing requirements. The following mapping guide lists legacy models alongside their direct modern replacements:

• Legacy: GT1020 / GT1030 (3.7")
  • Replacement: GT2103-PMBDS2 (3-inch TFT) or GT2104-PMBDS2 (4.3-inch widescreen). Both offer improved pixel density, multi-color LED backlights, and integrated serial configurations.
• Legacy: GT1150 / GT1455 (5.7" QVGA)
  • Replacement: GT2505-VTBD (5.7" VGA color TFT) or GT2107-WTSD (7" WVGA). The GT2505 provides a significant resolution bump from QVGA (320x240) to VGA (640x480) within a highly similar physical footprint.
• Legacy: GT1575 / GT1675 (10.4" VGA)
  • Replacement: GT2710-VTBA (AC Powered) or GT2710-VTBD (DC Powered). These models match the physical panel cutout of the legacy 10.4" screens exactly, making them direct plug-and-play mechanical replacements.
• Legacy: GT1585 / GT1685 (12.1" SVGA)
  • Replacement: GT2712-STBA (AC) or GT2712-STBD (DC). These high-end units match the legacy 800x600 resolution but utilize modern LED backlights with triple the lifespan.
• Legacy: GT1595 / GT1695 (15" XGA)
  • Replacement: GT2715-XTBA (AC) or GT2715-XTBD (DC) offering 1024x768 native display resolution, high-speed multi-touch gestures, and dual Ethernet ports.

Compatibility Considerations

1. Panel Cutout Dimensions

Mitsubishi designed several GOT2000 models to maintain physical compatibility with legacy cutouts. For instance, the transition from a GT1575 (10.4") to a GT2710 (10.4") requires no sheet-metal modifications as both require a panel cutout of 289mm x 200mm.

However, migrating from legacy 5.7" models to modern widescreen models (such as the 7" GT2107-W) will require physical panel modifications. If replacing smaller legacy units with compact GOT2000 modules, legacy adapter plates (e.g., GT05-90PMB for 5.7" transitions) must be sourced to adapt smaller bezels to larger legacy cutouts.

2. Supply Voltage and Terminals

Verify the suffix of your existing model to match energy profiles:

• -A denotes 100-240VAC input.
• -D denotes 24VDC input. Terminal blocks on GOT2000 series may use alternative screw alignments or push-in tension clamp terminals rather than traditional M3 fork-terminal screw systems found on GOT1000 units. Ensure wiring harnesses have sufficient slack to accommodate terminal changes.

3. Expansion Units and Networks

GOT1000 modules relied heavily on back-side expansion modules for networking. Legacy modules such as the GT15-75J61BT13 (CC-Link Communication Unit) or Q-Bus flat cables are physically incompatible with the backplane of GOT2000 HMIs. When migrating, you must purchase GOT2000-specific communication units, such as the GT25-CO-SET for CC-Link IE Field Basic networks, or migrate direct bus-connections to standard TCP/IP Ethernet using SLMP (Seamless Message Protocol).

4. Software and Database Conversion

GOT1000 projects were designed within GT Designer2 or early versions of GT Designer3. To migrate:

1. Open GT Designer3 (GOT2000 Edition).
2. Select Project -> Open and load your .g2p (GT Designer2) or .g3p (GT Designer3 Classic) source files.
3. Implement the conversion wizard. Change the target system under Common -> GOT Type Setting to your new GOT2000 model.
4. Select the image scaling option: "Adjust size to match GOT" scales resolution automatically, though manual inspection of text overlapping and custom bitmaps is required.

Upgrade Benefits

• Processing Speeds: GOT2000 features advanced processing cores that render graphics up to five times faster than the GT16 series, virtually eliminating screen transition lag.
• Memory Depth: User-accessible flash memory has expanded significantly (up to 128MB on the GT27), enabling detailed historical alarm storage, trending databases, and document viewers (PDF/CAD drawings) to be hosted directly on the terminal.
• Expanded Interfaces: Built-in SD Card slots replace obsolete CompactFlash (CF) interfaces. Integrated USB host and device ports (both Type A and Mini-B) enable direct programming, keyboard/mouse integration, and external barcode scanner interfacing.
• Advanced Diagnostics: Upgraded HMIs can act as transparent gateways, allowing programmers to connect their laptops directly to the HMI's USB or Ethernet ports and pass through programming lines directly to Mitsubishi MELSEC Q, L, or iQ-R series PLCs.

Common Migration Challenges

• Legacy Serial Communication Cabling: GOT1000 units often used RS-422 round 8-pin mini-DIN ports (e.g., associated with the GT10-C30R4-8PC cable). Many GOT2000 panels utilize standard D-sub 9-pin connections or RJ45 ports for serial networks. Custom pin-out adapters or replacement cables (such as the GT09-C30R4-6P transition line) must be planned ahead of installation.
• Data Conversion Errors: Complex script macros (written in older structured text or C-like commands under GT Designer2) may flag compilation errors inside GT Designer3. Check all conditional statements involving device address conversions, specifically peripheral memory addresses (GD and GB registers).
• Resolution Aspect Ratio Shift: Standard 4:3 ratios (VGA, SVGA) do not map directly to 16:9 widescreen formats (WVGA) without horizontal stretching of circular dials and rectangular boundaries. When converting to widescreen units like the GT2107-W, screen elements must be manually adjusted or realigned using the grid tool inside GT Designer3 to ensure intuitive operator visualization.

FAQ

Q: Can I run my old GT Designer2 software to program a GOT2000 HMI?

No. GT Designer2 does not contain the device definition files, firmware drivers, or compiler targets for the GOT2000 series. You must use GT Designer3 (which is included in the IQ Works and GT Works3 software suites).

Q: Are the communication modules from my GT15 or GT16 reusable on a GT25 or GT27?

No. The electrical interface and mechanical mounting slots on the back of GOT2000 terminals are completely redesigned. Legacy modules such as the GT15-C30BS (CC-Link) and GT15-QBUS interface boards will not physically fit or interface with the GOT2000 mainboard.

Q: What should I do if my legacy GOT1000 screen is communicating via CC-Link to an A or Q Series PLC?

Mitsubishi provides specific serial and network modules for the GOT2000 line to preserve communication pathways. If your PLC network cannot be changed, you can install the GT25-CO-SET (CC-Link unit) onto a GT25 or GT27 terminal to directly replace physical nodes without needing to modify register maps on the host PLC.

Q: Are memory cards transferable directly from GOT1000 to GOT2000?

No. GOT1000 HMIs mainly used PCMCIA or CompactFlash (CF) cards, whereas the GOT2000 series uses standard SD and SDHC cards. Logging, recipe, and system backup files on an existing CF card must be backed up to a computer and copied onto a FAT32-formatted SD card before insertion into the GOT2000 HMI.