Roland R1000 Series Manual page 84

Communication with the PLC
6.3.8 Teach-In 1-sheet
The sensors used in the active program are teached.
BIN
Teach-In 1-sheet
BOUT
Function result)
BOUT
Function fault
BOUT
Ready
Fig. 35: Timing diagram for Teach-In 1-sheet
1)
In case of "Function fault" = 1 "Function result" will sometimes remain at 0.
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84
Double Sheet Detector R1000 series UDK20
with integrated fieldbus interface
Note During Teach-In one sheet of nominal thickness must be placed in front of
the sensor.
Note A zero adjust procedure must be executed immediately before the
Teach-In procedure.
1)
< 10ms
Note The uncorrected thickness (thickness taken from the curve) is issued via
the process channel. Should the thickness deviate more then 10 percent
(exceptions 20 percent) from the nominal thickness then the cause for
this deviation must be investigated. This could be: wrong sheet, wrong
thickness, bowed sheet, air gap between sensor and sheet.
Note The measured timing periods were determined with 12 Mbit- Profibus.
These timing periods can vary with different transmission rates and bus
systems. The cycle time of the PLC has not been taken into account.
Manual
„1" if fault
0V if fault
7 sec.
B0048191 / Rev. 1.5
< 10ms