Hi cerberus78, well, Modbus works like a charm with the Revolution Pi, just take a look at the video tutorials #20-23
https://revolutionpi.com/en/tutorials/v ... rials#VT20

Hi zairalm, Thank you for the detailed error report and the steps you have taken, this is a complete picture that gives me and us a good idea of what the problem is. At the beginning of the analogue world, there is a rustle :) So well, something between 0 and 1 on a floating analogue input is nothin...

Hello Jérôme, thank you very much for your patience and your report. We have gratefully accepted and discussed your ideas. Presently, I cannot tell you if and when we will be able to implement this parameter for delayed communication. Alternatively, you can always view the developments online or con...

Hello user123, thank you for your patience, so do you still need support? If so, please send me an SOS-Report - here is how this works:
https://kunbus-gmbh.atlassian.net/servi ... 2036400208

Hi cerberus78, the process image is accessed in kernel space. This access is therefore atomic, and that is one of the core revolutionary things about the Revolution Pi project.

Hi cerberus78, if you want to use C/C++ take a look at the video tutorial https://revolutionpi.com/en/tutorials/video-tutorials#VT13 You can use it as an idea for your own code. You can download the example code here: https://revolutionpi.com/en/tutorials/downloads#coding PiTest Demo with source cod...

Hi Frank, du kannst tun und lassen auf deinem Gerät, was du möchtest, du kannst mit "sudo ..." Super User Rechte erlangen. Du kannst mit "sudo chown www-data www-data file" eine Datei der Gruppe und Benutzer www-data zuordnen. Weiterhin kannst du dann mit "sudo chmod u+rw fi...

Hi danielz, danke für die ausführliche Schilderung deines Fehlerbildes und der tiefen Analyse, das ist spitze. Ich finde es merkwürdig dass das "/dev/ttyRS485" Gerät fehlt. Die Schritte, die Du ausgeführt hast, um Modbus RTU in Betrieb zu nehmen, sind perfekt. Möglicherweise ist Dein Syste...

Hi gypo, take a look at this: Tutorial 25 – Create your own RAP file Here you can read the documentation for the tutorial: https://revolutionpi.com/en/tutorials/was-ist-pictory-2/tutorial-rap-datei-selbst-erstellen-am-beispiel-revpitimer Take a look at this discussion: https://revolutionpi.com/forum...

Hello cerberus78, that sounds exciting, a school project. It's helpful to have a few good examples in stock. The best place to start is with the video tutorials #20, #21, #22 and 23 on Modbus: https://revolutionpi.com/en/tutorials/video-tutorials#VT20 Then of course you can work with C/C++ and use t...