Instruction Manual

B. Supplementary information
B−95
Festo P.BE−GDCP−SFC−LACI−PB−EN en 0812NH
Syntax of the read and write commands
Acc
1)
Command Reply
W
W
2)
=IIIISS:<Value><CR>
=IIIISS:<Value><PS><CR>
=IIIISS:<Value> <PS> <CR>
R
R
2)
?IIIISS<CR>
2)
?IIIISS<PS><CR>
=IIIISS:<Value> <PS> <CR>
1)
Access: W = write, R = read
2)
When checksum checking is activated (Object 20F3h)
Tab.B/14: Syntax of a CI command / CI reply
Syntax
Explanation
=", ?" Initial character for write or read commands
IIII Index in 4 hexadecimal digits
SS Subindex in 2 hexadecimal digits
If the addressed object does not have subindices,
<00> is specified.
:" Separating character
<Value> Data in a format depending on data type
<PS> Checksum in 2 hexadecimal digits
<CR> End character <Carriage Return> ($0D)
Tab.B/15: Syntax elements of a CI command / CI reply