1. Introduction
The Coolmay EX3S-8043H-24MRT is an advanced 4.3-inch Human Machine Interface (HMI) and Programmable Logic Controller (PLC) all-in-one unit, designed for industrial automation applications. This compact device integrates logic control, HMI functionality, analog I/O, temperature control, and weighing modules into a single, space-saving unit. It offers enhanced performance with high-speed I/O and flexible communication options, making it suitable for a wide range of smart manufacturing environments.
2. Technical Specifications
The following table details the technical specifications of the EX3S-8043H-24MRT model:
| Specification | Description |
|---|---|
| Parameter | EX3S-8043H-24MRT |
| Dimensions | 4.3 inch |
| Maximum I/O Points | 12DI/12DO |
| Digital Input | 12DI |
| Digital Output | 6 Transistor, 6 Relay |
| Analog Input | 4AD (2 x 0-10V, 2 x 0-20mA) |
| Analog Output | 2DA (0-10V and 0-20mA) |
| Working Environment Temperature | -20°C ~ 60°C (no freezing) |
| Working Environment Humidity | 20% ~ 90% (non-condensing) |
| Serial Interface | RS485*2 |
| PLC Programming Port | 2 x RS485 |
| Certificate | CE |
| Warranty | 18 Months |
3. Setup and Installation
3.1 Package Contents
Before installation, ensure all components are present:
- Coolmay EX3S-8043H-24MRT HMI/PLC Unit
- Mounting hardware (if included)
- USB programming cable (if included)
- Documentation (this manual, software guides)
3.2 Physical Installation
The EX3S-8043H-24MRT is designed for panel mounting. Ensure adequate space for ventilation and cable routing. Refer to the product dimensions for precise cutout requirements.
3.3 Wiring and Connections
Carefully connect power, I/O, and communication cables as described below. Always ensure power is disconnected before making any connections.
- Power Supply: Connect a stable 24V DC power source to the designated power terminals (typically labeled DC24V and GND).
- Digital Inputs (DI): Connect your input devices (sensors, switches) to the 'X' terminals (X00-X11).
- Digital Outputs (DO): Connect your output devices (relays, indicators) to the 'Y' terminals (Y00-Y11). Note that outputs are a mix of transistor and relay types.
- Analog Inputs (AD): Connect analog sensors (0-10V or 0-20mA) to the AD terminals (AD0-AD3).
- Analog Outputs (DA): Connect analog actuators (0-10V or 0-20mA) to the DA terminals.
- Communication Ports:
- RS485 (COM1/COM2): Use the two RS485 ports for serial communication with other devices.
- LAN (Ethernet): Connect an Ethernet cable for network communication and programming.
- USB1/HOST: For program download and configuration updates via USB drive.
- USB (Programming Port): A dedicated USB port for connecting to a PC for programming.
The unit features plug-in terminals for easy and efficient wire replacement, reducing maintenance time.
4. Operation
4.1 Powering On
Once all connections are secure, apply 24V DC power. The HMI screen should illuminate, and the system will boot up. Observe the 'RUN', 'COM', and 'PWR' indicators on the unit for status.
4.2 HMI Interface
The 4.3-inch touch screen provides the Human Machine Interface. Navigate through screens, input data, and monitor processes as designed in your HMI project.
4.3 PLC Programming
The integrated PLC is programmed using Coolmay's dedicated software. Programs can be downloaded to the unit via:
- USB: Connect your PC to the USB programming port.
- Ethernet: Connect your PC to the LAN port.
- USB Drive: For configuration updates, load the update file onto a USB drive and insert it into the USB1/HOST port.
The PLC supports high-speed pulse outputs (up to 100 kHz) and high-speed inputs (up to 100 kHz), enabling precise control for demanding applications.
5. Maintenance
5.1 Environmental Conditions
To ensure optimal performance and longevity, operate the EX3S-8043H-24MRT within the specified environmental conditions:
- Temperature: -20°C to 60°C (avoid freezing conditions).
- Humidity: 20% to 90% RH (non-condensing).
Avoid exposure to direct sunlight, excessive dust, corrosive gases, and strong electromagnetic interference.
5.2 Cleaning
Clean the HMI screen and exterior casing with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the surface.
5.3 Terminal Replacement
The unit features plug-in terminals for easy wiring and replacement. If a terminal needs to be replaced or rewired, ensure power is off, then carefully remove the plug-in terminal block, make the necessary changes, and reinsert it. This design significantly reduces maintenance time.
6. Troubleshooting
This section provides basic troubleshooting steps for common issues. For more complex problems, please refer to the detailed software manuals or contact Coolmay technical support.
- Unit does not power on:
- Verify the 24V DC power supply is connected correctly and providing the correct voltage.
- Check power cable connections for looseness or damage.
- HMI screen is blank or unresponsive:
- Ensure the unit is powered on.
- If the screen is blank but the power indicator is on, try restarting the unit.
- If unresponsive to touch, check if the HMI project is running correctly.
- PLC program not running or I/O not responding:
- Verify the PLC program has been successfully downloaded and is in RUN mode.
- Check wiring for all I/O points.
- Ensure sensors and actuators are correctly powered and functioning.
- Review the PLC program logic for errors.
- Communication issues (RS485, Ethernet, USB):
- Check physical cable connections.
- Verify communication parameters (baud rate, parity, IP address) match between devices.
- Ensure correct drivers are installed for USB connections on your PC.
7. User Tips
- Backup Your Projects: Regularly back up your HMI and PLC projects to prevent data loss.
- Software Updates: Keep your programming software and device firmware updated to the latest versions for improved features and stability.
- Grounding: Ensure proper grounding of the unit and connected equipment to minimize electrical noise and ensure stable operation.
- Documentation: Maintain detailed documentation of your HMI screens, PLC programs, and wiring diagrams for easier maintenance and future modifications.
8. Warranty and Technical Support
8.1 Manufacturer Warranty
The Coolmay EX3S-8043H-24MRT comes with an 18-month manufacturer warranty. This warranty covers hardware defects and system malfunctions under normal use conditions. Please retain your proof of purchase for warranty claims.
8.2 Lifetime Technical Support
Coolmay provides lifetime technical support for its products. This includes remote assistance for configuration, firmware updates, and integration guidance. For support, documentation, or firmware files, please contact us.
8.3 Contact Information
Our technical support team is available to assist you. We aim to respond within 24 hours.
- WhatsApp: +86 199-2529-1353
- WeChat: +86 199-2529-1353
