Festo Контроллер двигателя SFC-ST - Manual (Page 48)

3. Control block
3−4
Festo P.BE−SFC−DC−PB−S7−E N en 0604NH
3.1.1 Description of method of operation
The block enables the drive functions of the SFC−DC to be
controlled by the field bus. It enables comfortable access to
the control bits.
System functions used
For data exchange the block uses internally the system funcĆ
tions SFC14/SFC15.
The correct logical input and output addresses of the slave
projected in the Hardware Manager must be entered for the
data exchange.
Position factor
All position specifications are always saved internally in
increments in the SFC−DC.
In the control block the conversion between increments and
the desired measuring system takes place via a position facĆ
tor. The position factor is defined by a counter and a denomiĆ
nator value.
Unit of length Parameter SLTE−10 SLTE−16
Increments Pos_Faktor_nummerator:
Pos_Faktor_denummerator: ă1 000 000
ă1 000 000 ă1 000 000
ă1 000 000
Ģm Pos_Faktor_nummerator:
Pos_Faktor_denummerator: ă1 795 938 (default)
ă1 000 000 ă2 338 461
ă1 000 000
ĢInch Pos_Faktor_nummerator:
Pos_Faktor_denummerator: 45 616 836
ă1 000 000 59 396 923
ă1 000 000
Tab. 3/1: SFC−DC position factors with the electric mini−slide type SLTE