getting the actual value of a halpin

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02 May 2022 15:10 #241854 by strahlensauger
For testing linear encoders I would like to show the position of the encoders on the right hand side of axis in a pyvcp.
I know I can view the values in Hal config, but I don't want to search each time I restart LCNC.
I didn't find an example, how to show pins like  [HMOT](CARD0).encoder.00.velocity or [HMOT](CARD0).encoder.00.position
in pyvcp. Could someone point me in the right direction?

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02 May 2022 17:30 #241860 by MaHa
A example

 

In .ini file

[DISPLAY]
PYVCP = vcp.xml

[HAL]
POSTGUI_HALFILE = pyvcp.hal

If the numbers to display are floatinpoint, the vcp.xml is ready for that format.

In pyvcp.hal  the entry signalname  must be replaced with the signalname linked to [HMOT](CARD0).encoder.00.velocity  and [HMOT](CARD0).encoder.00.position.
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02 May 2022 18:03 - 02 May 2022 18:03 #241861 by strahlensauger
Thank you very much, that is very helpful to me
Last edit: 02 May 2022 18:03 by strahlensauger.

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03 May 2022 21:50 #241948 by andypugh
If this is just a temporary measure you can add one or more lines like this to the HAL file:

loadusr halmeter -s pin [HMOT](CARD0).encoder.00.velocity

(the -s just makes it a smaller meter)
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