REXROTH Fv Series - Page 232

Example 1: Start 01# frequency converter for forward rotation at frequency of 50.00Hz (represented by 5000 internally)
Slave address
Function
code
Start address
Number of
address
Bytes of data Data content CRC code
Request 0x01 0x10 0x4000 0x0002 0x04 0x0001,0x1388 0xFA9E
Response 0x01 0x10 0x4000 0x0002 N/A N/A 0x0854
Example 2: Read the output voltage of 01# frequency converter and set frequency
Slave address
Function
code
Start address
Number of
address
Bytes of data Data content CRC code
Request 0x01 0x03 0x5001 0x0002 N/A N/A 0xCB84
Response 0x01 0x03 N/A N/A 0x04 0x1388, 0x1388 0xCB73
Example 3: Stop 01# frequency converter according to the stop mode set with the function code
Slave address
Function
code
Start address
Number of
address
Bytes of data Data content CRC code
Request 0x01 0x06 0x4000 N/A N/A 0x0008 0xCC9D
Response 0x01 0x06 0x4000 N/A N/A 0x0008 0xCC9D
Tab. 12-19: Example of Modbus communication
Bosch Rexroth AG DOK-RCON02-FV*********-IB08-EN-P230/259
Rexroth Frequency Converter Fv
Communication Protocols