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Appendix| EtherCAT
optoNCDT 2300
A 7.7.1.1 Synchronization off
In the mode FreeRun no synchronization of sensors occurs.
A 7.7.1.2 Slave
In the mode DC_Synchron xxxkHz the sensor is switched in the synchronization mode Slave.
Besides xxx means the measuring rate. The sensor measures with the rate selected by xxx.
A 7.7.1.3 Slave Alternating
The sensor is switched alternately in the synchronization mode Slave with the modes DC_Synchronous xxxkHz alt. 1 and DC_
Synchronous xxxkHz alt. 2. Besides xxx means the measuring rate, whereby it should be noted, that the laser is switched on
in the alternating mode only in every second cycle and a measurement value is entered.
That means, the effective measurement rate corresponds to half the selected rate. It makes sense to use this mode, if two sensors
“see” each other. For this case the first sensor is to be operated in the mode DC_Synchron xxxkHz alt. 1 and the second sensor
in the mode DC_Synchron xxxkHz alt. 2 or vice versa.
A 7.7.1.4 Apply Selected Settings
Once the required synchronization mode is selected using the drop-down-menu, it is applied with F4.
A 7.7.1.5 Setting Regardless of TwinCat
The setting of the synchronisation mode in EtherCAT occurs via the setting of the registers for the Distributed Clocks. You will find
details under www.beckhoff.de or www.ethercat.org. For reading the settings in the TwinCAT it is possible to display the requirements
of the XML file using the button Advanced Settings.
A 7.7.1.6 Error Message
The error „Inconsistent Settings“ can occur in DC mode, if the Sync0 frequency is not a valid sensor frequency.
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