https://forge.codesys.com/forge/talk/Runtime/thread/a3617e9a11/2020-02-27T17:12:10.460000ZRecent posts to Raspberry pi master Arduino slave2020-02-27T17:12:10.460000Z2020-02-27T17:12:10.460000Zalvermanhttps://forge.codesys.com/u/alverman/https://forge.codesys.com53528f84a4e5fbc29843354e051c03b610ffd537

<div class="markdown_content"><p>Sorry but to check arduino from serial you want some paid library or not?</p> <p>But then can you handle inputs and outputs from codesys via PI?</p> <p>Can you explain how to run from scratch to control from arduino serial?</p> <p>Thank you, Alberto</p></div>

2020-02-27T17:12:07.755000Z2020-02-27T17:12:07.755000ZRodneyChttps://forge.codesys.com/u/rodneyc/https://forge.codesys.com8d6f9cb9aa26653751fd59a64103d17c82d9d7a1

<div class="markdown_content"><blockquote> <p><strong>Mstanley hat geschrieben:</strong><br/> I'm currently using usb from the raspberry pi to the serial port on the arduino.</p> </blockquote> <p>Then you need to edit /etc/CODESYSControl.cfg and add the following: </p> <p><span>[SysCom]</span><br/> Linux.Devicefile=/dev/ttyUSB<br/> portnum := COM.SysCom.SYS_COMPORT1;</p> <p>I used the modbusino library to set up my arduino as slave, works a treat.</p></div>

2020-02-27T17:12:06.790000Z2020-02-27T17:12:06.790000ZMstanleyhttps://forge.codesys.com/u/mstanley/https://forge.codesys.com66018450177e18d423b90400f8d061e21b17d9b6

<div class="markdown_content"><p>I'm currently using usb from the raspberry pi to the serial port on the arduino.</p></div>

2020-02-27T17:12:04.080000Z2020-02-27T17:12:04.080000ZRodneyChttps://forge.codesys.com/u/rodneyc/https://forge.codesys.com5c9abeebd5042091cc2bdd7ac1590194ca87b700

<div class="markdown_content"><p>Are you using MODBUS RTU? What serial bus? What serial cable, usb?</p></div>

2020-02-27T17:12:03.114000Z2020-02-27T17:12:03.114000ZMstanleyhttps://forge.codesys.com/u/mstanley/https://forge.codesys.com353ebba7b5db30a0b40bbf76b9681b5ddf2b2f25

<div class="markdown_content"><p>Hi there,</p> <p>I'm currently working on having my raspberry pi as a master and my arduino as the slave. Currently I'm getting a "not running" on the slave when I login. I'm not sure if I have my channels set correctly for my arduino. Can anyone point me in the right direction for what channels are need on the arduino slave? Thank you.</p></div>