Technical data

Manual
Double Sheet Detector R1000 series E20
Communication with the PLC
B0046991 / Rev. 1.6
88
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 Check whether the output OUT0 “Enable“ has been switched to HIGH (ready for operation), otherwise there is a fault
condition.
 Before starting a measurement all inputs must be switched to LOW for 30 milliseconds.
 Switch the input IN0 “Measurement Start“ to HIGH.
 After 30 milliseconds the outputs OUT1-3 are switched to LOW for the duration of the measurement (systems reaction
time see chapter 2.6).
 The measurement result is available after the systems reaction time t
s
at the outputs OUT1-3 and measurement starts
again.
 The measurement result of the second measurement is available at the outputs. The measurement starts again.
 Switch the input IN1 “Measurement Start“ to LOW. The measurement is aborted, the last measurement result is now
available at the outputs OUT1-3. The measurement result is frozen until a new cycle is initiated.
Example with “fast“ PLC/BUS cycle time (smaller 20 milliseconds):
 Check whether the output OUT0 “Enable“ is switched to HIGH.
 All the inputs must be in the LOW status for more then 30 milliseconds.
 After that switch input IN0 “Measurement Start“ to HIGH.
 Check whether all outputs OUT1-3 switch within 30 milliseconds to LOW.
 Continue to interrogate the outputs OUT1-3 until (after the systems reaction time t
s
) the measurement result is
available.
 If required interrogate several measurements.
 Afterwards switch input IN0 to LOW.
The measurement is aborted, the last measurement result is now available at the outputs OUT1-3.
The measurement result is frozen until a new cycle is initiated.
Example with “slow“ PLC/BUS cycle time (larger 20 milliseconds):
 Check whether the output OUT0 “Enable“ is switched to HIGH.
 All the inputs must be in the LOW status for more then 30 milliseconds.
 After that switch input IN0 “Measurement Start“ to HIGH.
 Continue to interrogate the outputs OUT1-3 until (after the systems reaction time t
s
) the measurement result is
available.
 If required interrogate several measurements.
 Afterwards switch input IN0 to LOW.
The measurement is aborted, the last measurement result is now available at the outputs OUT1-3.
The measurement result is frozen until a new cycle is initiated.