how to link the analog input in mode1 of qtplasmaq

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29 Jan 2024 23:28 #291941 by Thayloreing
Good evening everyone, my question is how can I link an analogue input to the hal, I'm reading this input through a plc via Modbus, I wanted to know where I have to link it for the thc to work in mode 1 of qtplasmac, I'm using Linuxcnc 2.9.2 , thank you in advance, I apologize if it's difficult to understand, I'm Brazilian and I'm using a translator

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30 Jan 2024 02:01 #291950 by grijalvap
the pin you are looking for should be,    arc_voltage_in however not sure if modbus will be fast enought for the plasmac THC control loop,
if you are working in a "conventional"  plasma machine, the recomendation is to use MESA THCAD card to read the voltage. 

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30 Jan 2024 02:45 #291951 by Thayloreing
I also wanted to be able to use a table, but in Brazil it is not so easy to get a plate like that

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