csharp-三菱PLC

这个 MX Component 组件 是 32 位的。要注意
需要安装 MELSOFT 官方提供的 MX Component 组件，并确保 PLC 设备已经使用 Communication Setup Utility 工具设置好站点号

project-add reference 选择 MITSUBISHI ActUtlType Controls

MELSECHelper.cs

using Serilog;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace fwHZUpload
{
    /*
     * 需要安装MELSOFT官方提供的MX Component组件，并确保PLC设备已经使用Communication Setup Utility工具设置好站点号
     */
    public class MELSECHelper
    {
        private ActUtlTypeLib.ActUtlType melsecUtl = new ActUtlTypeLib.ActUtlType();
        private int flag = 0;
        private int FLAG_OPEND = 0x01;

        public string plc_addr_allow_switch = "M3700";
        public string plc_addr_start_switch = "M3701";
        public string plc_addr_finish_switch = "M3702";
        public string plc_addr_heartbeat = "M3703";
        public string plc_addr_height = "D3700";
        public string plc_addr_innerRace = "D3702";
        public string plc_addr_outerRace = "D3704";
        // 内圈外径
        public string plc_addr_innerRace_outDiameter = "D3725";
        // 产品编号
        public string plc_addr_product_no = "D3706";
        // 产品型号 18*2 个字符
        public string plc_addr_product_type = "D3707";
        

        public int Open(int stationNo)
        {
            flag = 0;
            melsecUtl.ActLogicalStationNumber = stationNo;
            melsecUtl.ActPassword = "";
            int iRet = 0;
            try
            {
                iRet = melsecUtl.Open();
            } 
            //Exception processing
            catch (Exception ex)
            {
                Log.Error($"open melsec failed. msg={ex.Message}");
                return -2;
            }
            flag |= FLAG_OPEND;
            return iRet;
        }

        public int ReadBit(string addr, out int value)
        {
            value = 0;
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.GetDevice(addr, out value);
        }

        public int WriteBit(string addr, int value)
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.SetDevice(addr, value);
        }

        // 三菱PLC 存储是 小端模式
        public int ReadBlockShort(string addr,int count, ref short[] value)
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.ReadDeviceBlock2(addr, count, out value[0]); ;
        }

        public int WriteBlockShort(string addr, int count, ref short[] value)
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.WriteDeviceBlock2(addr,count, ref value[0]);
        }

        /*
         *  Int 相关操作尚未通过测试，暂时没用到。
         */
        public int ReadBlockInt(string addr, int count, ref int[] value)
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.ReadDeviceBlock(addr, count, out value[0]);
        }

        public int WriteBlockInt(string addr, int count, ref int[] value)
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.WriteDeviceBlock(addr, count, ref value[0]);
        }

        public int Close()
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            return melsecUtl.Close();
        }

        public int SetSwitch()
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            int bVal = 1;
            int iRet = WriteBit(plc_addr_allow_switch, bVal);
            if (iRet != 0)
            {
                Log.Error($"write plc heatbeat failed. code={iRet}");
                return -2;
            }
            return bVal;
        }

        public int AllowSwitch()
        {
            if (FLAG_OPEND != (flag & FLAG_OPEND))
            {
                return -1;
            }
            int bVal = 1;
            int iRet = ReadBit(plc_addr_allow_switch, out bVal);
            if (iRet != 0)
            {
                Log.Error($"read plc heatbeat failed. code={iRet}");
                return -2;
            }
            return bVal;
        }

    }

    /*
     * 
     *      MELSECHelper melsec = new MELSECHelper();
            int iRet = melsec.Open(1);
            if (iRet != 0)
            {
                MessageBox.Show("open plc failed.");
            }

            short[] sData = new short[20];
            sData[0] = 0x1111;
            sData[1] = 0x2222;
            sData[2] = 0x3333;
            string devs = "d0";
            iRet = melsec.WriteBlockShort(devs, 3, ref sData);
            sData[0] = 0;
            sData[1] = 0;
            sData[2] = 0;

            iRet = melsec.ReadBlockShort(devs, 3,ref sData);
            if (iRet != 0)
            {
                MessageBox.Show("open plc failed.");
            }

            int bVal = 1;
            iRet = melsec.WriteBit("M3700", bVal);
            if (iRet != 0)
            {
                MessageBox.Show("open plc failed.");
            }
            bVal = 0;
            iRet = melsec.ReadBit("M3700", out bVal);
            if (iRet != 0)
            {
                MessageBox.Show("open plc failed.");
            }
            if (bVal != 1)
            {
                MessageBox.Show("read bit failed.");
            }

            // 保存的数是 0x12345678
            short[] iValArr = new short[10];
            iValArr[0] = 0x5678;
            iValArr[1] = 0x1234;
            iRet = melsec.WriteBlockShort("D3700", 2, ref iValArr);
            if(iRet != 0)
            {
                Console.WriteLine("failed.");
            }
            iValArr[0] = 0;
            iValArr[1] = 0;
            iRet = melsec.ReadBlockShort("D3700", 2, ref iValArr);
            if (iRet != 0)
            {
                Console.WriteLine("failed.");
            }

     */

}

问题

安装程序后，运行时提示 80040154 Class not registered (0x80040154 (REGDB_E_CLASSNOTREG))

这个 MX Component 组件 是 32 位的。改成 32 位程序就可以了