When registering a device, we need to fill 1.register name 2.register address 3.R/W method
The R/W method has read function 01,02,03,04 write function 05,06,15,16.
Can i know the details of the list of those R/W method?
thank you so much
Modbus and it's read write method are well documented. A simple Google search will reveal what these read write functions mean. E.g....
Function Code Register Type
1 Read Coil
2 Read Discrete Input
3 Read Holding Registers
4 Read Input Registers
5 Write Single Coil
6 Write Single Holding Register
15 Write Multiple Coils
16 Write Multiple Holding Registers
Taken from...
https://www.csimn.com/CSI_pages/Modbus101.html
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