Search found 1033 matches

by volker
20 Aug 2018, 13:38
Forum: Software
Topic: RevPi + Codesys = high performance PLC?
Replies: 3
Views: 1978

Re: RevPi + Codesys = high performance PLC?

Hier eine Vorgehensweise zur Priorisierung der Codesys-Projekte: Mit "ps aux |grep -i code" die beiden Codesysprojekt-pid suchen (z.B. 1463 und 1502) Mit "psr |grep code" die prozesse auf ihre priorität prüfen (in der Prio Spalte sollte erst mal nichts stehen) Mit "sudo chrt --pid 20 1463" und "sudo...
by volker
20 Aug 2018, 13:30
Forum: Software
Topic: Core 3 Diskspace
Replies: 12
Views: 3735

Re: Core 3 Diskspace

We're sorry but this is not a question of RevPi but these are the limits given by Raspberry CM3. There will be variants coming up with more eMMC but the foundation has not yet given any information about their time line.
by volker
19 Aug 2018, 17:48
Forum: Hardware
Topic: Why do DI/DO have 16 and not 28 I/O?
Replies: 4
Views: 1333

Re: Why do DI/DO have 16 and not 28 I/O?

If you are planning a mixed IO system with inputs and outputs then you should always use DIO modules because the cost per channel is less than with DI/DO combinations. But there are people out there, who only need inputs or who do need much more inputs than outputs. Those people can save over 20% (1...
by volker
17 Aug 2018, 14:41
Forum: Software
Topic: Straton-PLC for Raspberry PI
Replies: 1
Views: 1086

Re: Straton-PLC for Raspberry PI

Thanks for this information which is basically Raspberry Pi related. Revolution Pi uses a completely different IO access so I fear our users will have to reduce their ambitions to use Ethernet and USB connectivity only with this soft PLC (which is rarely useful in a control application). If you are ...
by volker
17 Aug 2018, 14:36
Forum: Software
Topic: Seriennummer etc. auslesen
Replies: 11
Views: 2318

Re: Seriennummer etc. auslesen

Wenn Du uns mal genauer sagst, was Du eigentlich vor hast, dann können wir besser weiterhelfen. Was genau vermutest Du denn hinter diesen "V1.2" Angaben und wofür brauchst Du sie? Es handelt sich hierbei zum Beispiel nicht um die aufgedruckte Versionsnummer der Hardware. Auf dem home-Verzeichnis all...
by volker
16 Aug 2018, 13:05
Forum: Hardware
Topic: AIO - Sampling rate
Replies: 6
Views: 1919

Re: AIO - Sampling rate

Please read the technical data sheet: https://revolution.kunbus.de/wp-content/uploads/manuell/datenblatt/Datasheet_RevPi_AIO.pdf (can be found in our shop at the AIO product page). There you can read: Input conversion time (data rate in process image): 8…1000 ms (adjustable) Therefore your aimed sig...
by volker
16 Aug 2018, 12:45
Forum: Software
Topic: Core CPU Temperature Precision
Replies: 1
Views: 819

Re: Core CPU Temperature Precision

Google "how to display Raspi CPU temperature" will show you dozens of websites explaining methods in all kind of applications. Basically the Broadcom SoC gives you a 1/10 °C precision. So if you need it more precise you could use the following system command: vcgencmd measure_temp We only use the in...
by volker
09 Aug 2018, 15:24
Forum: Hardware
Topic: Controlling the LED
Replies: 8
Views: 2790

Re: Controlling the LED

@lms: Think there is a misunderstanding: No ports, no direct addressing! On a RevPi System all IOs are operated by the kernel driver piControl, this includes the two bi-colour LEDs. You need to call this driver by opening it like a file and write to a certain offset your control byte which is settin...
by volker
09 Aug 2018, 00:19
Forum: RevPiModIO
Topic: Was RevPiModIO ist: Direktzugriff auf IOs mit Python!
Replies: 6
Views: 4670

Re: RevPiModIO - Python3 Direktzugriff auf IOs

Super Sven, dass Du so schnell bereits die Connect Features in die Bibliothek aufgenommen hast. Bitte lest aber auch mal hier: https://revolution.kunbus.de/forum/viewtopic.php?f=3&t=862 Bei der Verwendung des automatischen Resets vom watchdog ("triggern" tut man den WD nicht, das macht er selber wen...
by volker
09 Aug 2018, 00:19
Forum: Mein Projekt
Topic: RevPiModIO - Python3 Direktzugriff auf IOs
Replies: 38
Views: 18717

Re: RevPiModIO - Python3 Direktzugriff auf IOs

Super Sven, dass Du so schnell bereits die Connect Features in die Bibliothek aufgenommen hast. Bitte lest aber auch mal hier: https://revolution.kunbus.de/forum/viewtopic.php?f=3&t=862 Bei der Verwendung des automatischen Resets vom watchdog ("triggern" tut man den WD nicht, das macht er selber wen...