Siemens SIMATIC S5 CP 521 Manual page 115

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Table 6-21. PIQ in the Case of the "Setting the Serial Interface Parameters"Job
Byte Meaning
0 Job
1 Number of the parameter block
2 Baud rate
3 Parity
"mark" (parity bit always "1")
"space" (parity bit always "0")
4 BUSY signal
5 Interface
6 Data format
7 HW handshake
6-58
Value Range
90
H
00
H
110 Bd 01
H
200 Bd 02
H
300 Bd 03
H
600 Bd 04
H
1200 Bd 05
H
2400 Bd 06
H
4800 Bd 07
H
9600 Bd 08
H
even 00
H
odd 01
H
02
H
03
H
None 04
H
No 00
H
Yes 01
H
TTY 00
H
RS-232-C (V.24) 01
H
7 data bits 00
H
8 data bits 01
H
OFF 00
H
ON 01
H
CP 521
Default Values
on the CP 521
-
-
04
H
00
H
00
H
00
H
00
H
00
H
GWA 4NEB 812 6030-02b