... Coil
0x06 Write Single Register
0x07 Read Exception Status
0x08 Diagnostics
0x0B Get Comm Event Counter
0x0C Get Comm Event Log
0x0F Write Multiple Coils
0x10 Write Multiple Registers
0x11 Report Slave Id
0x14 Read File Record
0x15 Write File Record
0x16 Mask Write Register
0x17 Read Write Multiple Registers
0x18 Read Fifo Queue
0x2B Encapsulated Interface Transport (Read Device Identification interface)