Bosch Rexroth SMART Flex Effector Manual page 51

51
The checksum calculated by the user can now be compared with the checksum sent by the SFE unit.
Examples:
Command Response from
SFE unit
GET;BAUD GET;BAUD;921600
! 37EF
GET;BAUD GET;BAUD;921601
! 37EF
19 Examples of calculated checksums
If the user sends commands to the SFE unit via the serial interface, they can add the checksum
Modbus CRC16 if they wish. The SFE unit then checks the transmitted data from the user for errors. If
there is a transmission error, the SFE unit responds with an error message. Examples:
Command from the user
including CRC checksum
GET;LOCK_MODE!FD83
GET;LOCK_MODE!FD83
20 Examples of calculated checksums for serial interfaces
en
Checksum calculated
by the user
crc_modbus(GET;BAUD;9
2 1600) = 0x37EF
crc_modbus(GET;BAUD;9
2 1601) = 0xF72E
Response from
SFE unit
GET;LOCK_
MODE;SERI
AL!811C
ERROR;CRC! D1C4
Interface description
Result of the check
The checksum calculated by the
user is identical to the
checksum sent by the SFE unit.
This means that the data
transfer was without error.
The checksum calculated by the
user does not match the
checksum sent by the SFE unit.
The data transfer contained an
error.
Result of the check
The checksum calculated by the user is
identical to the checksum calculated by the
SFE unit. This means that the data transfer
was without error.
The checksum calculated by the user does
not match the checksum calculated by the
SFE unit. The data transfer contained an
error.
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