WCS_Pedestal/WCS.Service/PLCAccessors/MelsecPLC.cs

using HslCommunication.Profinet.Melsec;
using System;

namespace WCS.Service.PLCAccessors
{
    public class MelsecPLC : MelsecMcNet
    {
        private MelsecMcNet plc;

        public MelsecPLC(string ip, int port)
        {
            plc = new MelsecMcNet(ip, port);
            plc.ConnectTimeOut = 3000;
            plc.ConnectServer();
        }

        public byte[] ReadBytes(ushort db, ushort address, ushort length)
        {
            var res = plc.Read("D" + db, length);
            if (res.IsSuccess)
                return res.Content;
            throw new Exception("读取PLC数据失败:" + res.Message);
        }

        public void WriteBytes(ushort db, ushort address, byte[] data)
        {
            var start = db + address / 2;
            var res = plc.Write("D" + start, data);
            if (!res.IsSuccess)
                throw new Exception("写入PLC数据失败:" + res.Message);
        }
    }
}