Difference between revisions of "ModBus Arduino"
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Latest revision as of 17:40, 9 September 2021
Server and Client
Client send commands to control Server
Server poll to receive commands and do operations on LED
Commands from Client
- 01 05 00 00 00 00 CD CA <- client to toggle 0x00 at address 0x00
- 01 05 00 00 FF 00 8C 3A <- client to toggle 0xff at address 0x00
- 01 -- = device address
- -- 05 = modbus code
- CD CA = 2 bytes CRC