Manual
Double Sheet Detector R1000 series UDK20
B0048991 / Rev. 1.3
Communication with the PLC
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6.2.1 Explanation of “summary output“ for 0-sheet, 1-sheet and 2-sheet:
If the unit is used in sequencer mode (program with two sensors), the measurement result is
formed as summary output. The priorities are:
1.
If one or more sensors detect double sheet, the summary output is 2-sheet.
2.
If all sensors detect 1-sheet, the summary output is 1-sheet.
3.
Otherwise the summary output is 0-sheet.
Tabular presentation of the switching states
Sensor 1
Sensor 2
Output
0-sheet
0-sheet
0-sheet
0-sheet
1-sheet
0-sheet
0-sheet
2-sheet
2-sheet
1-sheet
0-sheet
0-sheet
1-sheet
1-sheet
1-sheet
1-sheet
2-sheet
2-sheet
2-sheet
0-sheet
2-sheet
2-sheet
1-sheet
2-sheet
2-sheet
2-sheet
2-sheet
6.2.2 Signal „Enable“
The signal ENABLE is always 24V active
The signal is LOW (0V)
•
during system operation via keyboard
•
in case of system fault
•
during a system test
The signal is HIGH (24V)
6.3
Timing diagrams
Notes for the following diagrams and descriptions:
For all the following diagrams and explanations, in the configuration menu item 11 „Level 0-1-2“ the
setting „0V“ was selected.
If „24V“ was selected, the outputs OUT1, OUT2 and OUT3 become inverted. Enable OUT0 will not
be affected by this.
HIGH Level at the outputs means „relay contacts closed“ respectively „opto coupler low resistive“.
LOW Level at the outputs means „relay contacts open“ respectively „opto coupler high resistive“.
