[C#] 使用HslCommunication访问施耐德寄存器

如下访问关系示例

施耐德地址	Hsl访问方法	Hsl地址参数
MW5037	ReadUint16	5037
MX16102.0	ReadUint16	8051
MD2242	ReadUint16	4484
MB40440	ReadString	20220

 

 MW5037：直接过滤字符，使用Hsl访问5037即可，不需要额外加40000

MX16102.0：属于Byte类型，仅有0~7；按Byte与Uint16关系换算为8051，读取8051值后按Bit位得出T/F值；8051.0~7对应16102.0~7，8051.8~F对应16103.0~7

MD2242：属于Uint32类型，按Uint32与Uint16关系换算为4484

MB40440：属于Byte类型，施耐德字符串以ascii形式存储在MB寄存器中， 按Byte与Uint16关系换算为20220；读取MW20220得到MB40440+MB40441；如果地址为MB40441，需要读取20220后截取低八位

 

MD类型实际测试发现问题，按图例理解：

施耐德		HslCommunication
地址	值	ReadUint16(20216,2)	ReadUint32(20216,1)
MD10108	3	[3,0]	[196608]
MD10108	65538	[2,1]	[65538]

 

 

一段格式转换方法

        public class SoMacAddr
        {
            public string type;//MW
            public string value;//8051
            public int rate;//长度倍率
            public int bit_pos;//指示是否访问bit位
        }

        /// <summary>
        /// 将寄存器地址MW000转换为Modbus_Tcp地址
        /// </summary>
        public SoMacAddr GetTcpAddr(string addr)
        {
            var res = new SoMacAddr();
            if(int.TryParse(addr,out res.rate))//是40100格式地址
            {
                res.value = addr;
                res.rate = 1;
                res.bit_pos = 0;
                return res;
            }

            if (addr.Length < 3)
                throw new Exception($"访问Modbus Tcp地址错误！");

            res.type = addr.Substring(0, 2).ToUpper();
            res.value = addr.Substring(2);
            res.rate = 1;
            res.bit_pos = -1;
            
            int dot_pos = res.value.IndexOf(".");
            if (dot_pos > 0)//有逗点格式
            {
                string bit_tmp = res.value.Substring(dot_pos + 1);
                if(!int.TryParse(bit_tmp, out res.bit_pos))
                    throw new Exception($"访问Modbus Tcp地址错误！");
                res.value = res.value.Substring(0, dot_pos);
            }

            int value_tmp;
            if (!int.TryParse(res.value, out value_tmp))
                throw new Exception($"访问Modbus Tcp地址错误！");
            switch (res.type)
            {
                //case "MD":
                //    res.rate = 2;
                //    res.value = (value_tmp * 2).ToString();
                //    break;
                case "MW":
                    res.value = (value_tmp).ToString();
                    break;
                case "MX":
                case "ML":
                    if (1 == value_tmp % 2)
                        res.bit_pos += 8;
                    value_tmp /= 2;//舍弃余数
                    res.value = value_tmp.ToString();
                    break;
                default:
                    throw new Exception($"不支持的地址！");
            }
            return res;
        }

 

Hsl访问示例（使用ModbusTcpNet）

        private ModbusTcpNet plc_Modbus = null;
        private string plc_Ip;
        private int plc_Port = 502;

        public SoMacHelper(string ip, int port)
        {
            plc_Ip = ip;
            plc_Port = port;
            plc_Modbus = new ModbusTcpNet(plc_Ip, plc_Port);
        }

        public override bool Open()
        {
            var res = false;
            plc_Modbus.ConnectTimeOut = 800;
            var plc_Result = plc_Modbus.ConnectServer();
            res = plc_Result.IsSuccess;
            return res;
        }

        public override bool ReadUint16(string addr, int lenth, out UInt16[] value)
        {
            bool res = false;
            value = null;
            var opera_addr = GetTcpAddr(addr);
            OperateResult<UInt16[]> r = plc_Modbus.ReadUInt16(opera_addr.value, (UInt16)(lenth * opera_addr.rate));
            if (r.IsSuccess)
            {
                 value = r.Content;
            }
            res = r.IsSuccess; 
            return res;
        }