Roland R1000 Series Manual page 98

Communication with the PLC
6.5.1 Explanation of summary output 0-sheet, 1-sheet and 2-sheet:
If the unit is used in sequencer-mode (more than 1 sensor in a program e.g. 1+3+4), the
measurement result is formed as summary output. The priorities are:
2-sheet is issued if at least one sensor detects 2-sheet.
1-sheet is issued if all sensors detect 1-sheet.
0-sheet is issued if no 2-sheet is detected but at least one sensor detects 0-sheet.
Truth table for summary output
Sensor 1
2-sheet is issued if:
2-sheet
any condition
1-sheet is issued if:
1-sheet
0-sheet is issued if:
0-sheet
0-sheet / 1-sheet
The results of the separate sensors are available in the bytes 12-23 and can be used as required.
6.5.2 Signal "Enable"
The signal "ENABLE" corresponds with the two process channel signals BOUT "Ready" and BOUT
"Function fault" according to the following Boolean logic.
ENABLE = BOUT Ready
BOUT
Ready
BOUT
Function fault
Fig. 51: Boolean function "ENABLE"
If the signal BOUT "Ready" is reset, then a fault has occurred, which requires a user intervention at
the control unit. Possible causes: memory faults, missing or too low voltages.
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
98
Double Sheet Detector R1000 series E20
with integrated fieldbus interface
Sensor 2
2-sheet
any condition
any condition
1-sheet
0-sheet
0-sheet / 1-sheet
0-sheet / 1-sheet
BOUT Function fault
&
ENABLE
Note The timing diagrams in the sections "6.5.4" and "6.5.5" do not contain an
explicit chart of the signal "ENABLE".
Manual
Sensor 3
any condition
any condition
2-sheet any condition
1-sheet
0-sheet / 1-sheet
0-sheet / 1-sheet
0-sheet 0-sheet / 1-sheet
B0046191 / Rev. 1.12
Sensor 4
2-sheet
1-sheet
0-sheet