Leuze electronic GmbH + Co. KG
In der Braike 1 D-73277 Owen
Synchronization of multiple DMU318 ultrasonic sensors
If adjacent ultrasonic sensors receive the signals of other sensors, so-called crosstalk occurs, which leads to faulty measurement results.
Through temporal synchronization of the adjacent sensors, this can be avoided. Via the
Sync/MUX
input, the DMU318 ultrasonic
sensors can be synchronized in 2 different ways:
Synchronous operation
In this operating mode the mutual interference of adjacent sensors can be avoided. For this purpose, up to 6 sensors of the same type
are wired together in a network according to the following diagram.
The devices work in synchronous operation with a
simultaneous transmission pulse
. The response time of the individual sensors in
the network corresponds approximately to that of a single sensor. However, an additional delay time of approx. 20ms occurs in
comparison to the specified response time in standard operation.
Synchronous operation wiring schematic
Sensor 2
Sensor 1
Sensor n
NOTE
Please make certain that the wiring is performed according to the connection diagram.
Sync/MUX
pin 5 on all sensors in the network must be connected to one another. Generation
of the synchronization signal for all sensors in the network occurs automatically.
DMU318…W
90° angled ultrasonic sensors with analog and switching output
