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Mitsubishi PLC Protocol Library

This Go library provides an implementation of Mitsubishi PLC communication protocols, specifically the A_1E and Qna_3E protocols. The library currently supports reading and writing methods for these protocols. Batch read/write methods and support for the 4E protocol are planned but not yet implemented.

Features

  • A_1E Protocol: Implemented methods for reading and writing data.
  • Qna_3E Protocol: Implemented methods for reading and writing data.
  • Batch Operations: Planned for future implementation.
  • 4E Protocol: Planned for future implementation.

Installation

To install this library, you can use the following go get command:

go get -u github.com/wang-laoban/mcprotocol

Usage

Below is an example of how to use this library to connect to a Mitsubishi PLC using the Qna_3E protocol, read a boolean value from a specific memory address, and print the result.

package main

import (
	"fmt"
	mc "github.com/wang-laoban/mcprotocol"
)

func main() {
	// Initialize a new Mitsubishi client for the Qna_3E protocol
	client, err := mc.NewMitsubishiClient(mc.Qna_3E, "127.0.0.1", 6000, 0)
	if err != nil {
		panic(err)
	}

	fmt.Println("Start Connecting")
	err = client.Connect()
	if err != nil {
		panic(err)
	}

	// Read a boolean value from memory address M100
	v, err := client.ReadBool("M100")
	if err != nil {
		panic(err)
	}

	fmt.Println("Read bool:", v)
}

Functions and Methods

Connecting to PLC

  • NewMitsubishiClient(protocol string, ip string, port int, timeout int): Initializes a new Mitsubishi client with the specified protocol, IP address, port, and timeout.
  • Connect() error: Establishes a connection to the PLC.

Reading and Writing Data

  • ReadBool(address string) (bool, error): Reads a boolean value from the specified memory address.

  • WriteBool(address string, value bool) error: Writes a boolean value to the specified memory address.

Contribution

Contributions to the library are welcome. If you find any issues or have suggestions for improvements, feel free to open an issue or submit a pull request.

License

This project is licensed under the MIT License. See the LICENSE file for details.