Siemens SINUMERIK 840Di sl Function Manual page 89

Calculating master value
From a synchronized action it is possible to calculate a concrete master value for a slave
value on the basis of a curve table.
Example
... DO $R18=CTABINV(FW, aprLW, n, degree)
where:
FW
aprLW
n
degrees
The functions CTAB and CTABINV can be programmed both in conditions and in the action
section of synchronized actions.
LEADON Axis master value coupling from synchronized actions
The coupling between following axis FA and leading axis LA based on the stored curve table
with number NR is called in the action section of synchronized actions as follows:
... DO LEADON(FA; LA, NR)
where:
FA
LA
NR
LEADOF Deactivate axis coupling from synchronized action
If the axis master value coupling must be canceled again on the fulfillment of another
condition, then the action is:
... DO LEADOF(FA, LA) or
... DO LEADOF(FA) in abbreviated form
System variables
The system variables of the master value coupling as specified in the list of system variables
can be read/written from the part program and synchronized actions.
References:
/PGA1/ Parameter Manual, System Variables
Synchronized actions
Function Manual, 11/2006, 6FC5397-5BP10-2BA0
Slave value
approximated master value, with which a unique LW can be determined in
case of multi-valued inverse function of the curve table
Number of curve table
Pitch parameters, result:
2 more options parameters for scaling:
- Following axis
- Leading axis
Following axis
Leading axis
Number of curve table
Detailed description
2.4 Actions in synchronized actions
89