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Measuring Setup and Commissioning
optoNCDT 22xx
Synchronization
6.7
For thickness measurement with two sensors it is essential that the two sensors measure at the same time. A
time delay during the recording of the measurement corresponds to a displacement of the measurement ob-
ject, that means the sensors measure at different positions. The validity of the thickness measurement object
is then questionable.
If two or more optoNCDT 22xx measure against the same target, the controller can be synchronized.
Connect the output
Sync out
of controller 1 with the input
Sync in
of controller 2.
The controller 1 (master) synchronizes the controller 2.
Other systems can be added by cascading them.
All synchronization inputs are DC decoupled with optocouplers.
Use screened cables for synchronization.
Sync out+
GND
Sync in+
Sync in -
Controller 1
Pin
19
6
20
7
25-pin. Sub. D
Controller 2
Pin
19
6
20
7
25-pin. Sub. D
Controller n
Pin
19
6
20
7
25-pin. Sub. D
Synchronization of optoNCDT‘s
Fig. 20
