Siemens S7-400PLC Dokumentacja Strona 62

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Integrating FB20 in the PLC program
62 01.00|FB20|en
bii_1_ref_auto_asf = Automatic referencing
If a signal 1/True is present, referencing is started, even if the
axis is referenced. If the signal 0/FALSE appears while referenc-
ing, the axis goes into stop and referencing must be carried out
again.
bio_1_ref_io_fu = Drive referencing status
If the axis runs in the referencing are executed, the output will
be 1/True.
bio_1_ref_io_fb = FB referencing status
After the drive has been referenced (bio_1_ref_io_fb=1),
a movement may still be made after internal setting of the
drive (e.g. by moving X millimeters towards to the reference
point). Only when the drive stands still after X time (set by
rei_ref_auto_io_ev) for X time, a 1/True signal is output.
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