Search found 1969 matches

by dirk
14 May 2024, 09:44
Forum: Software
Topic: Getting started
Replies: 3
Views: 567

Re: Getting started

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
by dirk
14 May 2024, 09:38
Forum: Hardware
Topic: AIO IN led red bliping
Replies: 4
Views: 1004

Re: AIO IN led red bliping

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...
by dirk
14 May 2024, 08:53
Forum: Software
Topic: Modbus RTU Slave delay to answer
Replies: 1
Views: 2266

Re: Modbus RTU Slave delay to answer

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...
by dirk
13 May 2024, 08:54
Forum: Hardware
Topic: RevPi Connect SE Sensor Connection
Replies: 6
Views: 4520

Re: RevPi Connect SE Sensor Connection

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
by dirk
13 May 2024, 08:48
Forum: Software
Topic: Modbus RTU MASTER
Replies: 3
Views: 483

Re: Modbus RTU MASTER

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.
by dirk
10 May 2024, 11:26
Forum: Software
Topic: Modbus RTU MASTER
Replies: 3
Views: 483

Re: Modbus RTU MASTER

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...
by dirk
08 May 2024, 15:39
Forum: Software
Topic: Revolution PI Web Server nutzen?
Replies: 1
Views: 434

Re: Revolution PI Web Server nutzen?

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...
by dirk
08 May 2024, 14:46
Forum: Connectivity
Topic: RevPi Connect 4 - Modbus /dev/ttyRS485 nicht vorhanden
Replies: 10
Views: 1551

Re: RevPi Connect 4 - Modbus /dev/ttyRS485 nicht vorhanden

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...
by dirk
08 May 2024, 08:36
Forum: RevPiModIO
Topic: DIO module simulation
Replies: 10
Views: 19112

Re: DIO module simulation

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...
by dirk
07 May 2024, 09:36
Forum: Software
Topic: Getting started
Replies: 3
Views: 567

Re: Getting started

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...