7i76e: MPG and Analog inputs with pncconf?

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02 Mar 2020 17:56 - 02 Mar 2020 17:58 #159000 by Arro
setting
sserial_port_0=10xxxx

I get a scaling (scalemax) for the input parameter



There should be parameters somewhere to set min and max for the raw input signal

where to find them ? (guess a correct variable definition is involved)
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Last edit: 02 Mar 2020 17:58 by Arro. Reason: complete post

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02 Mar 2020 17:58 - 02 Mar 2020 18:00 #159001 by PCW
halcmd show param hm2_7i76e.0.7i76*

There are no min or max parameters for analog inputs
Last edit: 02 Mar 2020 18:00 by PCW.

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02 Mar 2020 18:13 - 02 Mar 2020 18:14 #159002 by Arro
got it...

have some measurement on the input, with a max-scale of 36.3 Volts it gives a reasonable value



Thank you Peter and Andy !!
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Last edit: 02 Mar 2020 18:14 by Arro.

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02 Mar 2020 18:26 #159007 by cmorley

In fact I tried to set Manual Spindle CW as variable and "it works", I mean when I give the 24 Volts as input I get the signal = TRUE.
Moreover it's not possible to set the variable "Custom Signal"... it does not remain selected.

Anyway at least the raw signal should be readable somehow, noting the changing voltage value


You type in the combo box to make a custom signal name.
But as Peter says it only connects to the digital pin not the analog.

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02 Mar 2020 18:29 #159008 by cmorley

You would need to change
sserial_port_0=00xxxx
to
sserial_port_0=20xxxx
or
sserial_port_0=10xxxx

to get access to the 7I76E analog inputs


You can select mode 0 or 2 for the 7i76 in pncconf

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02 Mar 2020 19:10 #159012 by COFHAL
How are the two MPGs configured to work simultaneously? Could you share your HAL file?

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03 Mar 2020 02:07 #159057 by rodw

How are the two MPGs configured to work simultaneously? Could you share your HAL file?


I documented it here for the 7i76e (for one axis)
forum.linuxcnc.org/show-your-stuff/32029...utter-build?start=20

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07 Mar 2020 08:36 #159384 by Arro
Not using MPGs for the moment

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