How to Use X8-20: Examples, Pinouts, and Specs

The X8-20 is a versatile programmable logic controller (PLC) developed by Myactuator. It is designed for industrial automation and control applications, offering a robust and reliable solution for managing complex processes. The X8-20 features multiple input/output (I/O) channels, supports a variety of communication protocols, and is engineered for ease of programming and integration into existing systems.

• Industrial automation and process control
• Machine control and monitoring
• Building management systems (BMS)
• Conveyor systems and robotics
• Data acquisition and remote monitoring

The X8-20 is built to handle demanding industrial environments while maintaining high performance and flexibility. Below are its key technical specifications:

The X8-20 is designed for ease of use in industrial environments. Follow the steps below to integrate and program the device:

1. Connect a 24V DC power supply to the V+ and V- terminals.
2. Ensure the power supply is stable and within the specified voltage range.

• Digital Inputs: Connect sensors or switches to the DI1-DI8 terminals. Ensure the input voltage does not exceed 24V DC.
• Digital Outputs: Connect actuators, relays, or other devices to the DO1-DO8 terminals.
• Analog Inputs: Configure the AI1-AI4 channels for voltage (0-10V) or current (4-20mA) as required.
• Analog Outputs: Use AO1-AO2 for controlling devices like variable frequency drives (VFDs) or proportional valves.

• Use the RS-485 or Ethernet interface for communication with other devices or systems.
• Configure the communication protocol (e.g., Modbus RTU or TCP/IP) using the provided software.

1. Install the Myactuator programming software on your PC.
2. Connect the X8-20 to your PC via the USB port.
3. Use the graphical programming interface to create logic for your application.
4. Upload the program to the X8-20 and test its functionality.

The X8-20 can be interfaced with an Arduino UNO for additional control. Below is an example code to toggle a digital output on the X8-20:

// Example: Controlling X8-20 Digital Output with Arduino UNO
// Connect Arduino pin 7 to the X8-20's DO1 terminal

#define X8_20_DO1 7  // Define Arduino pin connected to X8-20 DO1

void setup() {
  pinMode(X8_20_DO1, OUTPUT);  // Set pin as output
}

void loop() {
  digitalWrite(X8_20_DO1, HIGH);  // Turn on the output
  delay(1000);                    // Wait for 1 second
  digitalWrite(X8_20_DO1, LOW);   // Turn off the output
  delay(1000);                    // Wait for 1 second
}

• Use proper shielding for communication cables to avoid interference.
• Ensure all connections are secure to prevent accidental disconnections.
• Regularly back up your programs and configurations.

1. Device Not Powering On

   • Check the power supply voltage and connections.
   • Ensure the polarity of the power supply is correct.

2. Communication Failure

   • Verify the communication protocol and settings (e.g., baud rate, parity).
   • Check the integrity of the communication cables.

3. Inputs/Outputs Not Responding

   • Ensure the connected devices are functioning properly.
   • Verify the configuration of the I/O channels in the programming software.

Q: Can the X8-20 be used in outdoor environments?
A: The X8-20 is not weatherproof. Use it in a controlled environment or within a protective enclosure.

Q: What programming languages are supported?
A: The X8-20 supports ladder logic and function block programming via the Myactuator software.

Q: How do I reset the X8-20 to factory settings?
A: Refer to the Myactuator user manual for detailed instructions on performing a factory reset.

Q: Can I expand the I/O channels?
A: Yes, the X8-20 supports expansion modules for additional I/O channels. Contact Myactuator for compatible modules.

By following this documentation, users can effectively integrate and operate the X8-20 in their automation projects.