Siemens SIMATIC S5 Manual page 109

IP 267
The new value is written into QB 90 of the PIQ as byte 2 ( Table 6-3.).
The following applies for this example: QB 90 =
Table 6-3. Configuration Message Frame for the Paths A to B and B to C
Byte Address
0 QB 88
Limit switch configuration
1 QB 89
2 QB 90
3 QB 91
EWA 4NEB 812 6061-02a
General meaning
Multiplier for the
start/stop rate (SS),
SS can assume values
from 1 to 255
"STOP" mode
Time interval (TI) for
frequency change
TI can assume values
from 1 to 255
Base value (BV) for the
frequency
Application Examples
0001 0000 = 10
Configuration data for
paths A to B and B to C
SS = 4
QB 88 = 0000 0100
QB 88 = 04
H
EK = 1
BA1=0, BA0=0
QB 89 = 0000 0010
QB 89 = 02
H
TI = 16
QB 90 = 0001 0000
QB 90 = 10
H
BV = 20
QB 91 = 0000 0101
QB 91 = 05
H
H
6
6-33