Manual
Double Sheet Detector R1000 series UDK20
B0048991 / Rev. 1.3
Communication with the PLC
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
71
6.3.2 Measurement menu selection
All 255 measuring programs can be selected via the PLC inputs.
For this the inputs IN0 to IN8 are used.
Note
The inputs IN1-3 and IN5 are used also for functions other then the
selection of the measuring programs. This means that the sequence
in the timing diagram has to be followed exactly.
IN0
OUT1, 2, 3
Enable
IN1-8
Meas. menu
Selection
Bit0-7
2-1-0-sheet
1
6
4
5
7
3
>=0ms
>=0ms
2
8
Complete switching time max. 270 / 570 / 330 ms
(depending on the material measured and the new material to be measured)
max. 180 ms for FE to FE, NF to NF or NF to FE
max. 480 ms for FE to NF (for same sensor)
max. 240 ms for FE to NF (for different sensors / SSB)
*
*
> 30ms
<= 60ms
> 60ms
Check whether the output OUT0 „Enable“ has switched to HIGH (ready for operation), otherwise there is a fault
condition.
Before selecting a measurement program, all inputs must be LOW for 30 ms.
Switch the input IN0 „Menu selection“ to HIGH.
Simultaneously with
(or delayed) switch the binary values to IN1-8.
Within 60 ms after switching IN0 "Menu selection", the outputs OUT1-3 have switched to LOW.
After the binary value has been present for a minimum of 60 ms, switch the input IN0 „Menu selection“ to LOW.
Simultaneously with
(or delayed) switch back the binary value at IN1-8 (switch IN1-8 to LOW).
After a maximum time of 180 / 480 / 240 ms (depending on the material measured last and the new type of material
to be measured) all outputs OUT1-3 have switched to HIGH. If the configuration „Demo mode“ was selected,
measurement will start automatically again (provided a valid program has been selected). If the configuration
„Measurement external“ was selected, the operation of the unit it is performed via the PLC.
