CODESYS - the IEC 61131-3 automation software

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PostPosted: Sun Jun 09, 2019 3:05 pm 
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Joined: Mon Jan 08, 2018 12:46 am
Posts: 13
Hi all

I'm looking for a very low latency communication option between raspberry pi running codesys and arduino, I know that spi is fast but i dont know how to setup spi com in codesys, anyone with experience doing so I would love some advice, my setup contains 2x teensy 3.6 slaves and 1 raspberry pi master.

I'm currently using modbus TCP to do my comunication but so far my average latency for a round trip around 10 -20 ms and as my project size increases I expect this latency also to increase, so any suggestions to get lower latency ?

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