SUTO S418-V, Instruction And Operation Manual

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15 Appendix B - Modbus communication example
16 (0x10) Write multiple registers
Request Response
Slave address 1 byte Slave address 1 byte
Function code 1 byte Function code 1 byte
Starting address
Hi 1 byte Starting address
Hi 1 byte
Starting address
Lo 1 byte Starting address
Lo 1 byte
No. of registers
Hi 1 byte No. of registers
Hi 1 byte
No. of registers
Lo 1 byte No. of registers
Lo 1 byte
Byte count 1 byte CRC 2 bytes
Data Hi 1 byte
Data Lo 1 byte
: :
Data Hi 1 byte
Data Lo 1 byte
CRC 2 bytes
17 (0x11) Report slave ID
Request Response
Slave address 1 byte Slave address 1 byte
Function code 1 byte Function code 1 byte
CRC 2 bytes Byte count 1 byte
Slave ID 2 bytes
Device run
indicator 2 bytes
Product code 2 bytes
Product name 20 bytes
CRC 2 bytes
26 S418-V