1. Introduction
The Coolmay EX3G-8070H-24MT is an advanced 7-inch industrial controller that seamlessly integrates PLC (Programmable Logic Controller) and HMI (Human Machine Interface) functionalities into a single, compact unit. Designed for a wide range of industrial automation applications, this device offers robust control capabilities, intuitive human-machine interaction, and versatile communication options including RS485 and RS232. Its all-in-one design simplifies system architecture, reduces wiring, and enhances overall efficiency in industrial environments.
2. Setup
2.1 Physical Installation
The Coolmay EX3G-8070H-24MT is designed for embedded installation. Ensure adequate space for ventilation and access to ports. The unit features lock screw holes for secure mounting into a panel cutout.
2.2 Wiring
Connect the necessary power supply, input/output devices, and communication cables to the appropriate terminals on the rear of the unit. The device supports various interfaces for flexible integration into your system.
2.3 Software Installation
To program the PLC and HMI, you will need to install the compatible programming software. The EX3G-8070H-24MT is compatible with:
- Coolmay Vcool
- GX Developer8.86Q
- GX Works2
Connect the device to your computer using the Type-C (HMI download port) or USB 2.0 port for programming and data transfer.
3. Operating Instructions
3.1 HMI Operation
The 7-inch resistive touch screen provides an intuitive interface for monitoring and controlling your industrial processes. Navigate through screens, input data, and trigger actions directly from the touch panel. The display supports 16.77 million true colors and can be displayed vertically or horizontally.
3.2 PLC Programming
Utilize the compatible programming software (Coolmay Vcool, GX Developer8.86Q, or GX Works2) to develop and upload your PLC logic. The device supports advanced features such as high-speed counting inputs (6 channels single phase 60KHz or 2 channels AB (Z) phase 30KHz + 1 channel AB phase 5KHz) and high-speed pulse outputs (8 channels: Y0-Y3 is 100KHz, Y4-Y7 is 10KHz, total transmission not exceeding 480KHz).
3.3 Communication
The device includes default RS232 and RS485 communication ports. These can be used to connect to other industrial devices, sensors, or control systems. Optional CAN port, network port, and WIFI modules are available for enhanced connectivity.
4. Maintenance
To ensure optimal performance and longevity of your Coolmay EX3G-8070H-24MT, follow these maintenance guidelines:
- Cleaning: Regularly clean the touch screen and exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Ventilation: Ensure that the ventilation openings are clear of dust and debris to prevent overheating.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion.
- Software Updates: Keep the HMI and PLC firmware updated to the latest versions provided by Coolmay to benefit from performance improvements and new features.
5. Troubleshooting
This section provides solutions to common issues you might encounter:
- Device not powering on: Verify the power supply connection and ensure the voltage is within the specified range. Check for any blown fuses.
- HMI display not responding: Ensure the touch screen is clean and free from obstructions. If the issue persists, try restarting the device.
- Communication errors: Check the cable connections for RS232/RS485. Verify the communication settings (baud rate, parity, data bits, stop bits) in both the HMI/PLC and the connected device. Ensure the correct communication protocol is selected in your programming software.
- PLC program not running: Check the PLC status indicators (RUN/COM/PWR). Ensure the program has been successfully uploaded and the PLC is in RUN mode. Review your program logic for errors.
- I/O not responding: Verify wiring to input/output devices. Check the status of I/O points on the HMI or through the programming software. Ensure the I/O addresses in your program match the physical connections.
6. Specifications
| Category | Feature | Specification (EX3G-8070H/HD) |
|---|---|---|
| HMI | Dimension | 200*146*36mm |
| Cutout size | 192*138mm | |
| Power Consumption | 6-7W | |
| Display type | 7.0"TFT | |
| Resolution (pixels) | 800*480/1024*600 | |
| RAM/ROM | 128MB/256MB NAND Flash | |
| PLC | I/O | Max 24DI/20DO (16MR, Y20-Y23 are fixed as MT) |
| I/O levels | Input: Passive NPN, common terminal isolated; Output MT: low level NPN, COM connected to negative; Output MR: Normally open dry contact; | |
| DO type and load | Relay MR/Transistor MT (Y0-Y3 are MOS tubes)/Mixed output MRT; MOS tube: 2A/point, 4A/4 points COM; MT: 0.5A/point, 0.8A/4 points COM, 1.6A/8 points COM; MR: 2A/point, 4A/4 points COM, 5A/8 points COM, 5A/12 o’clock COM. | |
| High-speed counting input | Conventional 6 channels single phase 60KHz or 2 channels AB (Z) phase 30KHz + 1 channel AB phase 5KHz | |
| High-speed pulse output | Conventional 8 channels: Y0-Y3 is 100KHz, Y4-Y7 is 10KHz; high-speed counting + high-speed pulse total transmission cannot exceed 480KHz | |
| Analog Input Type | EKSTJ type thermocouple (can support negative temperature E_K_S_T_J_)/PT100/PT1000/NTC10K/NTC50K/NTC100K/0-10V/0-5V/-5V~5V/-10V~10V/0-20mA/4-20mA or mixed type and other special specifications | |
| Analog Output Type | 0-10V/ 0-5V/0-20mA/4-20mA/-5-5V/-10-10V (1 negative voltage accounts for 2 DA) | |
| Communication | COM Port (USB) | Type-C (HMI download port); 1 USB 2.0 port |
| COM Port (Other) | Comes with 1 RS232 or optional 1 RS485 | |
| Ethernet | Optional 1 network port (cannot coexist with PLC network port) | |
| Software | Programming software | Coolmay Vcool, GX Developer8.86Q, GX Works2 |
7. User Tips
- Advanced Motion Control: Utilize the device's support for 4 encoders and 4 servos to implement precise and complex motion control in your automation projects.
- Software Preparation: Before starting any programming, ensure you have the correct programming software (GX Developer8.86Q or GX Works2) and necessary drivers installed on your computer.
- Customization: Explore the hardware, appearance, function, and software customization options offered by Coolmay to tailor the controller to your specific application needs.
8. Frequently Asked Questions (FAQ)
- Q: What programming software is compatible with this device?
- A: The Coolmay EX3G-8070H-24MT is compatible with Coolmay Vcool, GX Developer8.86Q, and GX Works2.
- Q: Can the HMI display be mounted vertically?
- A: Yes, the 16.77 million true color resistive touch screen supports both horizontal and vertical display orientations.
- Q: What communication interfaces are available?
- A: The device includes a Type-C programming port, 1 USB 2.0 port, 1 RS232, and 1 RS485 by default. Optional CAN port, network port, and WIFI are also available for specific configurations.
9. Warranty and Support
Coolmay provides comprehensive technical support for its products. For any technical assistance, troubleshooting, or warranty inquiries, please contact Coolmay customer service directly. The manufacturer is committed to resolving any issues quickly and professionally.
10. Company Overview
Coolmay is an automation expert with over 20 years of experience in providing industrial automation solutions. The company holds over 100 certificates and 60 patents, demonstrating its commitment to quality and innovation. Their manufacturing process includes advanced SMT production lines, rigorous testing, and careful assembly to ensure high-quality products.
