Nord Drivesystems SK 700E Series - 0 Fh Write Multiple Coils

NORD USS and Modbus RTU Manual
64 Subject to technical amendments BU 0050 GB-3111
2.5.3 0Fh Write Multiple Coils
Via this access, all of the 8 writable coils can be switched simultaneously.
Master  Slave
Slave  Master
Function Code
1 Byte
0x0F
Function Code
1 Byte
0x0F
Start address
2 Byte
0x0000 to 0x0007
Start address
2 Byte
0x0000 to 0x0007
Number of Coils
2 Byte
0x0001 to 0x0008
Number of Coils
2 Byte
0x0001 to 0x0008
Number of bytes
1 Byte
1
Example:
Bus IN Bits 2, 4 and 5 are set from start address 0x0001.
Query (Master  Slave)
Response (Slave  Master)
Address
0x08
Address
0x08
Function Code
0x0F
Function Code
0x0F
Start address High
0x00
Start address High
0x00
Start address Low
0x01
Start address Low
0x01
Number of High Coils
0x00
Number of High Coils
0x00
Number of Low Coils
0x04
Number of Low Coils
0x04
Number of bytes
0x01
CRC High
0x05
Coil value
0x0D
CRC Low
0x51
CRC High
0x02
CRC Low
0xF9