13:sendData.Add((byte)FunctionCode.Read);//8.Function Code : 3 (Read Multiple Register) 14:sendData.AddRange(ValueHelper.Instance.GetBytes(StartingAddress));//9~10.起始地址 15:sendData.AddRange(ValueHelper.Instance.GetBytes((short)30));//11~12.需要读取的寄存器数量 16:this.socketWrapper.Write...
13、19:values.add(0);/7:unit identifier:this field is used for intra-system routing purpose.20:values.add(byte )functioncode.write);/8.function code : 16 (write multiple register)21:values.addrange(valuehelper.instance.getbytes(startingaddress);/910.起始地址22:values.addrange(valuehelper.ins...
【MODBUS】J2mod库对指令码的定义 在J2Mod库中,Modbus通信使用指令码来标识要执行的操作。指令码(Function Code)是Modbus协议中用于定义请求和响应类型的数字代码。不同的指令码表示不同的功能,例如读取保持寄存器、写入单个寄存器等。以下是一些常见的Modbus指令码及其用途: 读操作: READ_COILS (1): 读取线圈状态(...
Function SetupCoils (SlaveID As Integer, Address As Long, Quantity As Integer) As Integer返回值如果成功则为真。如果没有成功则为假参数SlaveID:从机地址 1 至 255地址:数据地址(基址 0)数量:数据数量。1 至 10000设置离散输入函数设置离散输入(SlaveID 作为整数,地址作为整数,数量作为整数)作为整数返回值...
This log captures the fields of the Modbusmask_write_registerfunction (function code 0x16) and logs them tomodbus_mask_write_register.log. FieldTypeDescription tstimeTimestamp uidstringUnique ID for this connection idconn_idDefault Zeek connection info (IP addresses, ports) ...
(byte)FunctionCode.Write);//Function Code : 16 (Write Multiple Register)values.AddRange(ValueHelper.Instance.GetBytes(StartingAddress));//9~10.起始地址values.AddRange(ValueHelper.Instance.GetBytes((short)(data.Length / 2)));//11~12.寄存器数量values.Add((byte)data.Length);//13.数据的Byte...
Field NameExample Value (Hex) Slave Address247 (F7) Function Code16 (10) Starting Register High Order0 (00) Starting Register Low Order0 (00) Number Of Registers High Order0 (00) Number Of Registers Low Order3 (03) Error Check (LRC or CRC)-- ...
of the message. The function code field already specifies a ‘holding register’ operation. Therefore the ‘4XXXX’ reference is implicit. 保持寄存器40108的报文地址为006B hex (十进制107) Holding register 40108 is addressed as register 006B hex (107 decimal). ...
namespace CSharpModBusExample { public enum FunctionCode : byte { /// /// Read Multiple Registers /// Read = 3, /// /// Write Multiple Registers /// Write = 16 } internal class ModBusTCPIPWrapper : ModBusWrapper, IDisposable
Data byte N 1 byte (coils) Response Format Address 1 byte Function 1 byte Coil Number 2 bytes Coil Value 2 bytes 6.9 Function 16: Write Multiple Registers Function Code 16 writes to multiple registers. Poll Format Address 1 byte Function 1 byte Start Item 2 bytes Num Items 2 bytes Byte...