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- HMIG5U22
- Base Unit
- France
- 188 × 45 × 131 mm
- 0.9 kg
- Xiamen, China
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Product Overview
The Schneider Electric HMIG5U22 is an open-box base unit for the Harmony GTU modular HMI platform. Rather than combining the processor and screen in a single enclosure, this configuration separates the computing hardware from the operator display. The base unit runs the HMI application, manages communication with connected automation equipment, and supplies the processing resources required by a compatible Harmony GTU display module.
One practical application is a packaging line where operators need to switch production recipes, monitor machine status, acknowledge alarms, and review operating data. The HMIG5U22 executes the configured HMI project while communicating with the PLC over Ethernet or a supported serial interface. Operators interact with the project through a compatible display module, while the base unit handles application execution and data exchange.
A key distinction of the HMIG5U22 is its Windows 10 IoT Enterprise 32-bit operating environment. The unit comes with HMI runtime software installed and supports both Vijeo Designer Runtime and EcoStruxure Operator Terminal Expert Runtime. It also includes a 4 GB internal RAM configuration and a 32 GB CFast card, making the operating environment and application-storage arrangement relevant when planning a replacement or transferring an existing HMI project.
The communication interfaces allow the base unit to connect to different parts of an automation system. Two Ethernet ports support industrial network connections, while the serial interfaces accommodate equipment using RS-485, RS-232C, or RS-422, depending on the selected port. USB ports, a DVI-D output, and an auxiliary terminal connection provide additional integration options.
When selecting the HMIG5U22 for an existing machine, the operating system and runtime environment deserve particular attention. A project created for another Harmony GTU base unit may require compatibility checks before it can be transferred. Display-module compatibility, CFast storage, network settings, serial communication parameters, and any installed fieldbus expansion hardware should also be considered before commissioning.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model | HMIG5U22 |
| Product Family | Harmony GTU |
| Product Type | Base Unit |
| Device Short Name | Open Box |
| Platform | Modular HMI |
| Processor | Intel Atom E3825, 1.33 GHz dual-core |
| Internal RAM | 4 GB |
| Storage | 32 GB CFast Card |
| Backup Memory | 512 KB NVRAM |
| Rated Supply Voltage | 12–24 V DC |
| Operating System | Windows 10 IoT Enterprise 32-bit |
| Supported HMI Runtime | Vijeo Designer Runtime; EcoStruxure Operator Terminal Expert Runtime |
| Ethernet | 2 × RJ45, 10BASE-T/100BASE-TX/1000BASE-T |
| COM1 | RJ45, RS-485 |
| COM2 | 9-pin D-Sub, RS-232C/RS-422/RS-485 |
| USB Type-A | 3 × USB 2.0 |
| USB Mini-B | 1 × USB 2.0 |
| Video Interface | DVI-D |
| Auxiliary Interface | Terminal block |
| Audio Interface | Microphone mini-jack |
| Communication Protocols | Modbus, Modbus TCP/IP, Uni-Telway |
| Memory Card Slots | 1 SD card slot; 2 CFast card slots |
| Fieldbus Expansion | 1 slot |
| Cooling Method | Natural convection |
| Operating Temperature | 0–60°C |
| Storage Temperature | -20–60°C |
| Dimensions | 188 × 45 × 131 mm |
| Weight | 0.9 kg |
Product Features
- Windows 10 IoT Enterprise platform: Runs the specified 32-bit operating environment for the HMIG5U22 hardware configuration.
- Dual HMI runtime support: Supports Vijeo Designer Runtime and EcoStruxure Operator Terminal Expert Runtime, subject to project compatibility.
- 4 GB internal RAM: Provides memory for the operating environment and running HMI applications.
- 32 GB CFast storage: Supplies the specified storage medium for system and application files.
- Dual Ethernet ports: Supports network connections to compatible PLCs, industrial devices, and plant networks.
- Multiple serial interfaces: Accommodates supported RS-485, RS-232C, and RS-422 communication arrangements.
- DVI-D video output: Supports compatible external video-display arrangements.
- USB connectivity: Provides Type-A and Mini-B USB interfaces for supported peripheral and service functions.
- Fieldbus expansion slot: Allows a compatible expansion interface where required by the application.
- Fanless cooling: Uses natural convection, avoiding the need for a forced-air cooling fan.
Working Principle
The HMIG5U22 operates as the computing unit of a modular HMI terminal. When DC power is applied, the unit starts its Windows 10 IoT Enterprise environment and loads the configured HMI runtime. The runtime executes the project that contains the operator screens, communication settings, alarm displays, and interactive controls.
A typical control arrangement follows this path:
PLC or Machine Controller → Ethernet or Serial Communication → HMIG5U22 Base Unit → Compatible Harmony GTU Display → Operator
During normal operation, the HMI application exchanges data with connected controllers. The controller supplies process values and machine status, which the HMI presents as numerical readings, status indicators, trends, or alarms. When an operator selects a permitted command, the application sends the corresponding request through the configured communication channel.
The HMIG5U22 supports Modbus TCP/IP over a compatible Ethernet network, as well as supported serial communication arrangements. Serial devices must be matched to the appropriate port and electrical standard. Correct addressing, baud rate, parity, wiring, and protocol settings are necessary for stable data exchange.
The Windows 10 IoT Enterprise environment is particularly relevant when maintaining or migrating an HMI application. The unit supports Vijeo Designer Runtime and EcoStruxure Operator Terminal Expert Runtime, but the presence of both runtime environments does not mean every project is interchangeable. The original project format, runtime version, display configuration, and connected-device drivers must be checked before transferring an application.
The 32 GB CFast card provides the specified storage medium, while the 4 GB RAM supports the operating system and application execution. The additional SD and CFast card slots support compatible storage arrangements, subject to the intended system configuration.
The base unit does not directly perform the machine’s control logic in place of the PLC. It provides the operator interface, application processing, and communication functions through which personnel monitor and interact with the control system. Machine interlocks and control sequences remain dependent on the connected controller and the overall automation design.
Role in an Industrial HMI Architecture
The HMIG5U22 sits between the operator-facing display and the machine control network. It executes the HMI project and exchanges data with controllers, while the compatible display module presents the information and controls used by plant personnel.
PLC / Machine Controller → Industrial Network → HMIG5U22 Base Unit → Harmony GTU Display Module → Operator
| System Element | Function |
|---|---|
| HMIG5U22 Base Unit | Runs the Windows environment and configured HMI runtime |
| Compatible Harmony GTU Display Module | Presents operator screens, process values, alarms, and controls |
| PLC or Machine Controller | Executes machine logic and exchanges process data with the HMI |
| Ethernet Network | Carries supported network communication between the HMI and connected devices |
| Serial Devices | Communicate through the configured RS-485, RS-232C, or RS-422 interface |
| CFast Storage | Holds the specified storage medium and relevant system or application files |
| Fieldbus Expansion Unit | Adds a supported fieldbus interface when required |
| Plant Network | Supports broader monitoring and data exchange where the application permits |
Industrial Applications
| Application | Typical Use |
|---|---|
| Packaging Machinery | Displaying production status, operating modes, recipes, and alarm messages |
| Automated Assembly Lines | Providing operator access to station status, cycle information, and permitted commands |
| Process Equipment | Displaying process variables received from PLCs and other connected controllers |
| Material Handling Systems | Supervising conveyors, transfer stations, and automated handling sequences |
| Industrial Machine Tools | Presenting machine status and operator functions through a compatible HMI project |
| Utilities and Plant Equipment | Monitoring connected equipment over supported communication interfaces |
| Machine Retrofit Projects | Replacing a compatible HMI base unit while retaining a suitable display arrangement |
| Production Monitoring Stations | Presenting operational information and alarm history to operators |
| Networked Automation Systems | Exchanging process data through Ethernet or serial connections |
| Maintenance Workstations | Supporting diagnostic screens and maintenance functions included in the HMI application |
Installation and Maintenance
- Verify the model number: Confirm that the replacement is HMIG5U22 and that the application requires its Windows 10 IoT Enterprise configuration.
- Check display compatibility: Verify that the existing Harmony GTU display module is supported by the HMIG5U22 and that the connecting interface is suitable.
- Confirm the DC supply: Ensure that the power supply meets the specified 12–24 V DC input requirement and follows the installation instructions for the equipment.
- Inspect the mounting arrangement: Secure the base unit correctly and leave sufficient clearance for natural convection cooling.
- Review Ethernet connections: Identify the correct network ports and confirm cable condition, link status, addressing, and the intended network configuration.
- Check serial communication settings: Match the selected port to the device’s RS-485, RS-232C, or RS-422 interface and verify the required protocol parameters.
- Inspect USB and peripheral connections: Confirm that attached peripherals are supported by the installed operating environment and application.
- Verify CFast storage: Check that the required storage medium is installed and that the necessary system and application files are available before startup.
- Validate runtime compatibility: Confirm the HMI project format, runtime version, communication drivers, and display settings before loading the application.
- Test controller communication: Verify that process values update correctly and that permitted operator commands reach the intended controller.
- Review startup and runtime diagnostics: Check system messages, communication status, application behavior, and reported hardware or software faults after installation.
- Document the commissioned system: Record the base-unit model, display module, operating environment, runtime version, storage arrangement, network settings, serial parameters, and test results.
Compatible System Components
| Component | Function |
|---|---|
| Compatible Harmony GTU Display Modules | Provide the operator-facing interface when supported by the HMIG5U22 |
| PLCs with Modbus TCP/IP Support | Exchange process data over a compatible Ethernet network |
| PLCs and Devices with RS-485 Interfaces | Connect through the supported serial interface and matching communication settings |
| Devices with RS-232C or RS-422 Interfaces | Communicate through COM2 when the wiring and protocol configuration are suitable |
| 32 GB CFast Card | Provides the specified storage medium for the base-unit configuration |
| Compatible SD or CFast Storage Media | Support additional storage arrangements where permitted by the system configuration |
| Compatible Fieldbus Expansion Unit | Adds a supported fieldbus connection through the expansion slot |
| Ethernet Cables | Connect the base unit to controllers and industrial networks |
| USB Peripherals | Support compatible peripheral and service functions |
| DVI-D Display Equipment | Provides a video connection for supported external-display arrangements |
| Compatible DC Power Supply | Supplies the required DC input within the specified operating range |
Recommended Related Models
| Model | Product Type | Selection Consideration |
|---|---|---|
| Schneider HMIG5U21 | Harmony GTU Base Unit | Compare runtime licensing, operating-system configuration, and application requirements |
| Schneider HMIG5U2 | Harmony GTU Base Unit | Check the Windows Embedded Standard 7 environment against the HMIG5U22’s Windows 10-based configuration |
| Schneider HMIG5U | Harmony GTU Base Unit | Verify storage capacity, operating environment, display compatibility, and interface requirements |
| Schneider HMIDT952 | Harmony GTU Display Module | Confirm the supported base-unit pairing and required display connection |
| Schneider HMIDT752 | Harmony GTU Display Module | Check the display model’s compatibility with the intended base unit |
| Schneider HMIDT542 | Harmony GTU Display Module | Verify the required display resolution and base-unit video compatibility |
Key Advantages
- Runs a Windows 10 IoT Enterprise 32-bit operating environment.
- Supports Vijeo Designer Runtime and EcoStruxure Operator Terminal Expert Runtime.
- Includes 4 GB RAM and a 32 GB CFast storage configuration.
- Provides dual Ethernet ports and multiple serial communication options.
- Supports a modular display arrangement for compatible Harmony GTU systems.
- Uses natural convection cooling without a forced-air fan.
Technical FAQs
What is the main difference between the HMIG5U22 and HMIG5U2?
The HMIG5U22 uses Windows 10 IoT Enterprise 32-bit and has 4 GB of internal RAM. The HMIG5U2 uses an earlier Windows Embedded Standard 7 environment and has a different memory configuration. Runtime compatibility and application requirements should be checked before substituting one for the other.
Can the HMIG5U22 run both Vijeo Designer and EcoStruxure Operator Terminal Expert projects?
The unit supports both Vijeo Designer Runtime and EcoStruxure Operator Terminal Expert Runtime. However, each project must be compatible with its intended runtime version, display configuration, and communication drivers. The presence of both runtime environments does not guarantee that a project created for one environment can run in the other.
What should be checked when migrating an existing HMIG5U22 application?
Back up the project and relevant configuration data, then verify the runtime version, controller drivers, network settings, display model, and CFast storage contents. Test the application and controller communication before returning the machine to normal operation.
Can the HMIG5U22 communicate with equipment that uses serial rather than Ethernet connections?
Yes. The base unit has an RS-485 interface through COM1 and a COM2 interface that supports RS-232C, RS-422, or RS-485 configurations. The selected interface, wiring, protocol, and communication parameters must match the connected equipment.