Manual
Double Sheet Detector R1000 series E20
with integrated fieldbus interface
Communication with the PLC
B0046191 / Rev. 1.12
98
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
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
Sensor 2
Sensor 3
Sensor 4
2-sheet is issued if:
2-sheet any
condition
any condition
2-sheet any
condition
any condition
2-sheet any
condition
any condition
2-sheet
1-sheet is issued if:
1-sheet
1-sheet
1-sheet
1-sheet
0-sheet is issued if:
0-sheet
0-sheet / 1-sheet
0-sheet / 1-sheet
0-sheet
0-sheet / 1-sheet
0-sheet / 1-sheet
0-sheet
0-sheet / 1-sheet
0-sheet / 1-sheet
0-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.
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.
Note
The timing diagrams in the sections “6.5.4“ and “6.5.5“ do not contain an
explicit chart of the signal “ENABLE“.
&
BOUT
Ready
BOUT
Function fault
ENABLE
ENABLE = BOUT Ready BOUT Function fault