Festo Контроллер двигателя SFC-ST - Manual (Page 88)

A. Technical appendix
A−4
Festo P.BE−SFC−DC−PB−S7−E N en 0604NH
The SFC−DC does not support any automatic mode, i.e. no
user program. Records cannot be processed automatically
with a programmed logic. The drive cannot accomplish any
tasks sensibly with Stand Alone; close coupling to the PLC is
necessary.
Direct mode
In the direct mode positioning tasks are formulated directly in
the output data of the master.
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 senĆ
sible here to parametrize the record list again each time. The
positioning data are managed completely in the PLC and sent
directly to the SFC−DC.
Here also, close coupling between the PLC and the SFC−DC is
necessary.