Festo SFC-LAC CO Series, Manual, Page: 124 / 328

5. Commissioning
5−34
Festo P.BE−SFC−LAC−CO−EN en 0708NH
The SFC−LAC cannot function independently, i.e. it does not
have its own user program. However, a sequence of records
can be defined via the further record switching.
There are also three records with special functions (which
cannot be executed in Record Select mode):
Record 32 contains the parameters for the Jog mode.
Record 33 contains the parameters for Direct mode.
Record 34 is the direct record for the FCT software.
Direct mode
In direct mode positioning tasks are formulated directly in the
output data of the master.
Positioning mode The typical application calculates dynamically the nominal
target values for each task or just for some tasks. Adaption to
different work item sizes is therefore possible. It is not sen
sible here to parametrize the record list again each time. The
positioning data are managed completely in the PLC and sent
to the SFC−LAC. Here also, close coupling between the PLC
and the SFC−LAC is necessary.
Force control Alternatively, nominal values relative to the rated motor
currennt can be specified as direct mode. A force therefore
results with linear motors (force control).
FHPP continuous mode Continuous nominal value adjustment
Specifying changeable position values in millisecond
intervals.