I use Raspberry pi3 B+ and CODESYS for TTL connection
PLC use: PiXtend
Can you provide more information

tehthoams forge@codesys.com 於 2021年2月2日 週二 上午12:37寫道：

Been a while but I wanted all to know I found the source of this issue and
the solution. The problem was initiating the serial communication caused
the arduino to reset. If serial communication started from the raspberry pi
before the arduino reset the messages would be lost and would not recover.
Putting a small delay before starting read/write reliably solved the
problem.

---

How to connect serial devices ?
https://forge.codesys.com/forge/talk/Runtime/thread/87506d2b8e/?limit=25&page=4#8485/f71f

---

Sent from forge.codesys.com because you indicated interest in
https://forge.codesys.com/forge/talk/Runtime/

To unsubscribe from further messages, please visit
https://forge.codesys.com/auth/subscriptions/

---

How to connect serial devices ?

---

Sent from forge.codesys.com because you indicated interest in https://forge.codesys.com/forge/talk/Runtime/

To unsubscribe from further messages, please visit https://forge.codesys.com/auth/subscriptions/