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The following figure shows the preset value in the
“module parameters” in TIA portal.
The preset value can be set to a value unequal 0. To do this no program, PLC function block or similar things
are necessary. If one of the PROFIdrive telegrams 81 to 83 is used and a preset is triggered (in operation)
the value in PNU 65000 is used as preset value.
This functionality is for example very useful if the desired preset value does not change during operation.
6.6.3. Preset using the Push Button
Depending on encoder type, the encoder may have a screw cap located where connectors and LEDs are
located as well. After removing the screw cap, the preset / reset push button is visible.
While the encoder is connected to the PROFINET a preset can be performed using the push button. The
preset sets the encoder position to the value held in parameter PNU 65000. The contained position value will
be interpreted absolute, as a relative preset is not possible using the push button.
Note:
Prior to using the push button it is strictly recommended to execute a potential equalization between operator
and encoder (touching the encoder housing) in order to eliminate the danger of damaging the encoder by
electrostatic discharge (ESD).
For firmware version 1.2.x this has to be considered:
In order to perform a preset the push button must be pressed for a duration of at least three seconds and
longest five seconds.
Since firmware version 1.3.0 this has to be considered:
-
In order to perform a preset the push button must be pressed (LEDs blinking red). The button has to
be released when the LEDs change from red blinking to green blinking.
-
It is possible to set the preset value (PNU 65000) in the “module parameters”. This means that the
PLC writes PNU 65000 during startup of the encoder. Details can be found in chapter
in PROFIdrive telegrams 81 to 83
”.
To be able to use this functionality the following GSDML file has to be used:
“GSDML-V2.32-Baumer-EAx580_PN-20190715.xml”.
