Burkert Type 8605 - Manual (Page 14)

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Serial Communication
Status 3.4.7.
Transferred only from the slave to the master in a response telegram. Consists of 2 bytes. The status bytes are
used to detect communication errors or for the operating status of the slave device.
Data 3.4.8.
data bytes, depending on the command. A maximum of 255 data bytes can be transferred. Ensure that the total
number of bytes of address + data cannot exceed 255.
checksum 3.4.9.
The checksum is an XOR (exclusive OR, anticoincidence) combination of all bytes from the starting byte (delimiter)
up to and including the last data byte.
An XOR combination is the logical combination function of two logical values ("0" and "1"). It yields a result of "1"
if one but not both of the two values is "1".
a B y = a XOr B
0 0 0
0 1 1
1 0 1
1 1 0
XOR combination Table 5:
english
Typ 8605