Title: 32 Pumper modbuss teknisk data.pdf.pdf
This function is used for reading input registers from the slave. Input registers are read-only registers by definition. The request telegram specifies the starting address, that is the address of the first register to be read, and the number of holding registers to read. In the telegram, register addresses start from zero, meaning that registers numbered 0-16 are addressed as 0-15.Example of request from master to slaveFieldValueAddress0x01Function code0x04Start address HI0x10Start address LO0x10Quantity HI0x00Quantity LO0x03In the request, the slave with address 1 is asked to deliver three contiguous registers starting from address 0x1010: 4112, meaning register 4113.Example of response from slave to masterFieldValueAddress0x01Function code0x04Byte count0x06Register 4113 HI0x22Register 4113 LO0x22Register 4114 HI0x22Register 4114 LO0x22Register 4115 HI0x22Register 4115 LO0x22