Technical data

Manual
Double Sheet Detector R1000 series E20
Communication with the PLC
B0046991 / Rev. 1.6
84
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone [phone] · Fax [phone]
6.3.3 Sensor selection via external inputs (4P version only)
If system parameter “sensor selection“ has been configured to “external“, then the sensor selection
functions according to the following timing diagram.
OUT0
IN0
Enable
1 > 30ms > 1ms
2
IN9
IN10
IN1-8
Meas.
Start
Sensor-
select A
Sensor-
selectl B
3 4
 Check whether the output OUT0 “Enable“ has been switched to HIGH (ready for operation), otherwise there is a fault
condition.
 Before selecting a sensor all inputs must be switched to LOW for 30 milliseconds.
 Switch the inputs IN9 and IN10 for selecting the sensor according to the table.
 After >1 milliseconds the measurement can be started. (See timing diagram: Measurement Start/Stop)
Example:
 Check whether the output OUT0 “Enable“ has been switched to HIGH.
 All inputs should be on LOW for more than 30 milliseconds.
 For selecting sensor 2 switch IN9 to HIGH and IN10 to LOW.
 After >1 milliseconds the measurement can be started.
Sensor selection B (IN10) Sensor selection A (IN9) Selected sensor
0 0 S 1
0 1 S 2
1 0 S 3
1 1 S 4
Note High Level at the outputs means relay closed respectively opto
coupler low resistant. Low Level at the outputs means relay open
respectively opto coupler high resistant.