Siemens SIMATIC FM 351 Manual page 110

Modes and Jobs
Data Used in the Channel DB
Address Name
35.7 AVAL_EN
84.0 AVAL
Effects of the Job
Based on the example "set actual value" to 300 mm, you can see how the job
projects the working range to a particular position of the axis. It produces the
following effects:
The actual position is set to the value of the actual value coordinate.
The working range is offset on the axis.
The individual points (for example software limit switch end) within the working
range retain their original value, are located, however, at new positions.
Table 9-4 Offset of the Working Range on the Axis by "Set Actual Value"
SLS
–500
–500
SLS
Canceling the Job (cancel set actual value)
With the "cancel set actual value" job, you reset all the working range offsets
caused by "set actual value".
The sum of the working range offsets must not exceed the travel range for the job
to be executed correctly.
Data Used in the Channel DB
Address Name
35.3 AVALREM_EN
9-24
Type Initial Value
BOOL FALSE
DINT L#0
set actual value.
Old coordinate system
SLE
ACT
500
0
100
Projection of
the working
range by set range by set
actual value to
300 mm
300
0
500
New coordinate system
ACT SLE
Type Initial Value
BOOL FALSE
Comment
1 = set actual value
Coordinate for "set actual value"
SLS ACT
[mm]
-400 100
-400 300
Comment
1 = cancel set actual value
FM 351 Positioning Module
C79000-G7076-C351-02
SLE
400
400