1. Introduction
The Coolmay EX3G Series HMI/PLC All-in-One device integrates a Human Machine Interface (HMI) and a Programmable Logic Controller (PLC) into a single unit, offering a compact and efficient solution for industrial automation. This manual provides essential information for the installation, setup, operation, and maintenance of your EX3G series device, specifically focusing on the EX3G-100HA-44MT model.
The EX3G series features TFT displays with 60K colors and supports various digital and analog inputs/outputs, along with communication options like RS485, RS232, USB, and optional Ethernet ports, utilizing Modbus protocol.
2. Product Features
The Coolmay EX3G series combines HMI and PLC functionalities, offering a versatile control solution. Key features include:
- Integrated HMI and PLC for streamlined control systems.
- TFT display with 60K colors for clear visualization.
- Support for various digital inputs (DI) and digital outputs (DO).
- Analog input (AI) and analog output (AO) capabilities.
- Multiple communication interfaces: RS485, RS232, USB, and optional Ethernet.
- High-speed counting and pulse output functionalities.
- Modbus protocol support for industrial communication.
2.1. Model Naming Rule
Understanding the model naming convention helps in identifying the specific configuration of your EX3G device. The diagram below illustrates the breakdown of the model number:
| Article | Description |
|---|---|
| 1. Series | EX3G |
| 2. HMI | 43HB/43HA/43KHB: 4.3", 50KHB: 5", 70KHA/70KHB: 7", 100HA: 10", 150HA: 15" |
| 3. Digital Input/Output (DI/DO) | e.g., 10 (5DI/5DO), 24 (12DI/12DO), 44 (24DI/20DO), 60 (30DI/30DO) |
| 4. Module Type | M - Main module of universal controller |
| 5. Digital Output (DO) Type | R - Relay, T - Transistor, RT - Both relay and transistor |
| 6. Analog Input (AD) | 4 channels for 43H, 12 for 70H/100H |
| 7. Analog Output (DA) | 2 channels for 43H, 8 for 70H/100H |
| 8. AI Type | EK (thermocouple), PT (Pt100), NTC (thermistor), A0 (0-20mA), A4 (4-20mA), V (0-10V), V5 (0-5V) |
| 9. AO Type | A0 (0-20mA), A4 (4-20mA), V (0-10V), V5 (0-5V) |
| 10. High Speed Counting | C1 (single phase), C2 (AB phase), C3 (ABZ phase). Customizable channels and frequencies. |
| 11. High Speed Pulse | P (100KHz pulse). Commonly 8 channels (Y0-Y3 100KHz, Y4-Y7 10KHz). Customizable. |
| 12. Optional COM Port | 485P/232P (PLC port), 485H/232H (HMI port). Various configurations available depending on model. |
3. Specifications
| Attribute | Value |
|---|---|
| Model Number | EX3G-100HA-44MT |
| Brand Name | Coolmay |
| DIY Supplies | Electrical |
| Origin | Mainland China (Guangdong) |
| Digital Input/Output (DI/DO) | Up to 30DI/30DO (Specific model: 24DI/20DO) |
| Digital Output Type | Transistor |
| Analog Input/Output (AD/DA) | Up to 16AI/8AO |
| Condition | 100% Original |
| Certificate | CE Certification |
| High-concerned chemical | None |
| Quality | 100% Brand |
4. Installation
The EX3G series HMI/PLC units are designed for panel mounting. Ensure you have the correct cutout dimensions for your specific model before proceeding with installation.
4.1. Cutout Dimensions
Refer to the table and diagrams below for the required panel cutout sizes for different EX3G models:
| Model | Cutout Size (W x H) |
|---|---|
| EX3G-43HA/HB | 119mm x 93mm |
| EX3G-43(50)KHA/KHB | 143mm x 86mm |
| EX3G-70KHA/KHB | 218mm x 153mm |
| EX3G-100HA/HB | 261mm x 180mm |
4.2. Mounting Procedure
- Cut an opening in the control panel according to the specified cutout dimensions for your model.
- Insert the HMI/PLC unit into the cutout from the front of the panel.
- Secure the unit using the provided mounting clips or screws from the rear of the panel. Ensure the unit is firmly seated and the gasket provides a proper seal.
5. Setup
Before powering on the device, ensure all necessary connections are made correctly.
5.1. Power Connection
Connect a stable DC 24V power supply to the designated power terminals on the rear of the unit. Observe polarity carefully to prevent damage.
5.2. I/O Wiring
Connect your digital inputs (DI), digital outputs (DO), analog inputs (AI), and analog outputs (AO) to the respective terminals. Refer to the wiring diagrams in the detailed product documentation for specific pin assignments and safety guidelines.
5.3. Communication Ports
The EX3G series supports various communication interfaces:
- USB Ports: Use for programming the PLC and HMI, or for data transfer.
- RS232/RS485 Ports: Connect to other industrial devices for serial communication (e.g., Modbus RTU).
- Ethernet Port (Optional): Connect to a network for Modbus TCP/IP communication or remote access.
Ensure proper cabling and termination for all communication lines to avoid interference.
5.4. Software Configuration
The HMI and PLC require programming using Coolmay's dedicated software. Install the software on your PC and connect the EX3G unit via USB or Ethernet to upload your HMI screens and PLC logic programs. Configure communication parameters (e.g., Modbus addresses, baud rates) within the software to match your system requirements.
6. Operating
Once the unit is installed, wired, and programmed, it is ready for operation.
6.1. Power On
Apply power to the unit. The HMI display should light up, and the PLC will begin executing its program. Observe the status indicators (RUN, COM, PWR) on the front panel:
- PWR: Indicates power supply status.
- RUN: Indicates PLC program execution status.
- COM: Indicates communication activity.
6.2. HMI Interaction
Interact with the HMI using the touch screen. Navigate through screens, input data, and monitor process variables as designed in your HMI project.
6.3. PLC Operation
The PLC will continuously execute the loaded program, controlling connected devices based on inputs and logic. Monitor the system's behavior and ensure it operates as expected.
7. Maintenance
Regular maintenance ensures the longevity and reliable operation of your EX3G HMI/PLC unit.
- Cleaning: Keep the display and casing clean using a soft, dry cloth. Avoid abrasive cleaners or solvents.
- Environmental Conditions: Ensure the operating environment remains within specified temperature and humidity ranges. Protect the unit from excessive dust, moisture, and corrosive gases.
- Firmware Updates: Periodically check for firmware updates from Coolmay to ensure optimal performance and access to new features. Follow the provided instructions carefully when performing updates.
- Connection Checks: Regularly inspect all wiring connections for tightness and signs of wear or corrosion.
8. Troubleshooting
This section provides general guidance for common issues. For detailed troubleshooting, refer to the comprehensive product manual or contact technical support.
- No Power: Check the DC 24V power supply connection and ensure it is providing the correct voltage. Verify power supply fuses if applicable.
- Display Not Working: If the PWR indicator is on but the display is blank, check HMI software settings or contact support.
- PLC Not Running: If the RUN indicator is off, check for programming errors, ensure the PLC is in RUN mode via software, or verify input signals.
- Communication Errors: Check wiring for RS232/RS485/Ethernet. Verify communication parameters (baud rate, parity, data bits, stop bits, Modbus address) in both the HMI/PLC and the connected device. Ensure proper termination resistors are used for RS485.
- I/O Malfunction: Verify wiring to sensors and actuators. Check I/O status in the programming software. Ensure correct addressing in the PLC program.
9. User Tips
- Always back up your HMI and PLC programs regularly to prevent data loss.
- When connecting to a PC for programming, ensure the correct USB drivers are installed.
- For complex applications, consider using a dedicated power supply for the HMI/PLC and separate power for high-current outputs to minimize electrical noise.
- Familiarize yourself with the Modbus protocol if integrating with other devices, paying close attention to register addresses and data types.
10. Warranty and Support
The Coolmay EX3G Series HMI/PLC All-in-One unit comes with a 180-day warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
For technical assistance, troubleshooting, or warranty inquiries, please contact your vendor or Coolmay customer support. Provide your product model number and a detailed description of the issue to facilitate faster service.
