MGR10 A/B/C - Revision : I (for 7.0 software revision)
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6-1- 6 How to trigger a measurement :
After setting up the unit as described here above and making the right connections ( see the diagram on
the following page ) , please follow the hereafter procedure to trigger a measurement cycle :
Select the memory number by setting the corresponding binary code on the N0 to N2 inputs. If
an empty memory is coded , the ERROR signal will be enabled .
Set the CTLIN input to the High logic state , the unit switches automatically into the remote
mode ( REM displayed on the LCD screen right corner) and the keyboard is locked .
Set the MES_DCH input to the High logic state during a time > 50 mSec. to trigger a
measurement. The output CTLOUT signal goes high to indicate that the unit is under the PLC
system remote control. If the MES_DCH signal stays high , the MGR10 will perform several
measurements until the MES_DCH signal goes low .
At the end of each measurement , the EOT output signal goes high to indicate the measurement
cycle end and that the PASS , FAIL HIGH et FAIL LOW signal are enabled . If an error occurs
during the measurement ( lead resistance too high , wire wrong connection , …..) the ERROR
signal will indicate that the measurement is not correct .
6-1-7 Analog output :
The MGR10-02 option provide also an analog output from 0 to 3 volts , corresponding to the measured
resistance ( value displayed in big characters ) . A 30 000 digits display matches to a 3.000 volts on the
analog output .
The analog output basic accuracy is 0,01% Full Scale.
To enable this feature , you must have the MGR10-02 option and follow the procedure :
Press on the MENU key
Press on Rem IO key
Select PLC
Enable the analog output by pressing ON key .
The analog output is available on the 11 and 24 pins of the 25 pins Sub-D connector on the rear panel (
refer to the board in section 6-1-4) .
NOTA : The analog output control request processor time , therefore it is recommanded , mainly in
the FAST mode , to inhibit this function if not used .
