And the length of ACK must be 12, and format is
Z0_072+0025Z
Byte 1: Always ‘Z’
Byte 2: ACK
Byte 3: Always ‘_’
Byte 4~6: function code
Byte 7: sign byte, ‘+’ or
Byte 8~11: the current value after writing
Byte 12: Always ‘Z’
And ‘ACK’ value is
0:Right command and function
1:Illegal Format
2:Illegal Function
3:Illegal Action,
4:Illegal Adjusted Situation,
5.Written value is over up limit,
6.Written value is over down limit
If the ACK is 0, 5, 6, program will deal this command. If ACK = 5, program writes the legal maximum value to the setting. If ACK = 6, writes the legal minimum value to the setting.
68
