2.5 Modbus RTU: Function codes
BU 0050 GB-3111 Subject to technical amendments 63
2.5.1 01h Read Coil
This function enables the readout of inverter bits. The addresses of the bits are listed in the "Coil List".
Example:
4 bits are queries from the address 0x0008 (Bus OUT bits 1 to 4). The bus OUT bits 1 and 2 are High and the
other two bits are Low.
Response (Slave Master)
2.5.2 05h Write Single Coils
Writes a single 1Bit value The addresses of the bits are listed in the Coil List.
The value 0x0000 is written if a bit is to be deleted. 0xFF00 is written if the bit is to be set.
Example:
Bus IN Bit 2 is set to the address 0x0001.
Response (Slave Master)
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