Analog inputs through MODBUS to control overrides?

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Analog inputs through MODBUS to control overrides?

Postby eMTea » Wed Nov 23, 2022 6:37 pm

Hi!
Is it possible to use analog inputs through modbus, to control feed/speed/rapid overrides?
Or use a rotary encoder, maybe through a micro controller, to do the adjustments or simulate + - button presses?
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Re: Analog inputs through MODBUS to control overrides?

Postby dezsoe » Wed Nov 23, 2022 10:28 pm

You can use any Modbus device. For serial Modbus I use Arduino Nano, for Ethernet the Mega is needed. (The Nano does not have enough memory for Ethernet Modbus.)
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Re: Analog inputs through MODBUS to control overrides?

Postby eMTea » Thu Nov 24, 2022 12:04 pm

OK!
But in the UCCNC software, can I map the analog values to a VAR, and attach that var to the overrides?
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Re: Analog inputs through MODBUS to control overrides?

Postby dezsoe » Thu Nov 24, 2022 12:58 pm

It's more easy. If you use an Arduino then it will return you 0..1023 from the analog input. You need a macroloop which scales this 0..1023 to 0..300 and write the value into the FRO or SRO field. That's all.
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Re: Analog inputs through MODBUS to control overrides?

Postby eMTea » Thu Nov 24, 2022 2:44 pm

Great! Thank you!
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