Siemens SIMATIC S5 CP 521 Manual page 139

ASCII Mode
Table 7-8. Assignments for Parameter Block 2
Block Meaning
XON/XOFF protocol
2
XON/XOFF protocol
* only possible in interpretive ASCII mode
Table 7-9. Assignments for Parameter Block 7 - (Transparent ASCII Mode)
Block Meaning
Parameter block number and code
7
for "Transparent ASCII mode"
Character delay time
(four decimal digits)
Message length
(three decimal digits)
7-16
Value Range
XON character 00
no protocol FF
XOFF character 00
H
no protocol FF
Value Range
71
0001 to 3000
001 to 256
CP 521
Default Values
on the CP 521
to 7F
H H
FFFF
H H
(no XON/XOFF
to 7F protocol)
H
H
Default Values
on the CP 521
0: if memory sub-
module with
message texts
plugged in
1: without
memory
submodule
0001 : 100 ms
064
GWA 4NEB 812 6030-02b