Veichi Electric AC60 series Manual page 184

END
5.2.3 Command code：08H,
Function: Send back the slave machine responding informations which are
identical with the host machine command information. It is used to check
whether the signal transmission between the host machine and slave machine
is regular or not. The checking code and the data can be set freely.
RTU Host machine command information
START
Slave machine address
Command code
Detecting code high-order
Detecting code low-order
Data high-order
Data low-order
CRC CHK low-order
CRC CHK high-order
END
RTU Slave machine responding information（normal）
START
Slave machine address
Command code
Detecting code high-order
Detecting code low-order
Data high-order
Data low-order
CRC CHK low-order
CRC CHK high-order
END
RTU Slave machine responding information（abnormal）
START
slave machine address
Transmission time of 3.5 bytes
circuit auto-detection
Transmission time of 3.5 bytes
Transmission time of 3.5 bytes
Transmission time of 3.5 bytes
Transmission time of 3.5 bytes
Transmission time of 3.5 bytes
180
01H
08H
00H
00H
13H
88H
EDH
5DH
01H
08H
00H
00H
13H
88H
EDH
5DH
01H