CODESYS - the IEC 61131-3 automation software

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PostPosted: Mon Sep 17, 2018 9:45 pm 
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Joined: Mon Jun 04, 2018 12:04 am
Posts: 8
Hi guys I have sorted out the communication between a PC _ USB TTL and raspberry pi onboard TTL serial port, I'm able to send and receive data ( hex or ASCII).
The Receiving side on the raspberry is tricky, I dont get all the data bytes in one PLC cycle all the time . Using CAA Serial Library , if I use some example projects from pixend or others using the receiving bytes converted to ASCII, basically I receive 2 or 3 strings instead of one .
Is there a solution for this ?
Any ideas or projects to share will be more then welcome guys.


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