Post by martinlithlith on CODESYS Control for Raspberry Pi SL on Raspberry Pi 4b
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Feedback: I have a raspberry pi 4 (not + as in original question). It works fine to run the CODESYS Control for Raspberry Pi SL license on a pi 4.
Last updated: 2023-10-17
RPI How to login for a copy of the SD image
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RPI How to login for a copy of the SD image
Last updated: 2023-10-18
Library Search not working
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Library Search not working
Last updated: 2023-10-17
Post by mondinmr on Jitter problems on imx8
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We are experiencing serious jitter issues on an ARM64 imx8. Until now, on rpi and beaglebone derivatives, and on Intel, we never encountered jitter issues unless they were already present on the device. In this case, as can be seen from the attached graph, we have excellent maximum latency. The cyclictest on the isolated core dedicated to IEC CODESYS tasks shows a latency of 37µs, with an average of 14µs. Usually, on all other devices, with an RT kernel, with the appropriate parameters to avoid frequency throttling, with properly managed IRQs, and with the disabling of large page sizes, the jitter measured by CODESYS is very close to the cyclictest latency. However, on this imx8, we are noticing a fluctuating value of +/- 300µs that seems to be added to this latency, as if something occasionally miscalculates the sleep times by exactly +/- 300µs. Two screenshoot attached. - Result of cyclictest - Jitter on CODESYS Tasks are assigned to isolated core!
Last updated: 2023-10-18
Post by davidbo on RPI How to login for a copy of the SD image
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I had one RPI device where I could login. I copied the SD-flash over to another SC-flash. This new SD-flash was inserted in the new device. I can boot the new device but I cannot login why? How can I install an application on this new device? Control 4.4.0.0 cat os-release PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)" NAME="Raspbian GNU/Linux" VERSION_ID="11" VERSION="11 (bullseye)" VERSION_CODENAME=bullseye ID=raspbian ID_LIKE=debian HOME_URL="http://www.raspbian.org/" SUPPORT_URL="http://www.raspbian.org/RaspbianForums" BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
Last updated: 2023-10-18
Post by tehthoams on Library Search not working
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Also, Codesys 3.5.19.30 64 bit.
Last updated: 2023-10-17
AWS IoT Core connection using AWS certificates
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AWS IoT Core connection using AWS certificates
Last updated: 2023-10-18
Post by matthew on Persistence Manager Backup
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Hi, Is there a process to restore Persistence Manager files? I have backups of persistence variables used in a machine that is currently operating and tuned and all set points adjusted. There are about 500 persistence variables, they are building another identical machine. I would like to use Persistence Manager files from the first machine in the second also. I have tried copying the files and replacing them on the new RPI but then the Persistence Manager gets errors and then they are all reset to 0 etc I have tried adjusting the times to match. Instead of replacing whole file, I tried just changing the contents inside the file, but still does not work. I may be missing something here, but surely there must be a way to load a backup. Thanks!
Last updated: 2023-10-18
Post by ltrinta on AWS IoT Core connection using AWS certificates
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Can someone help? Regards, Leonardo
Last updated: 2023-10-18
Post by davidbo on RPI is license server down
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I try to install license on server license.codesys.com.
Last updated: 2023-10-18
Post by eschwellinger on Persistence Manager Backup
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you need at them moment a download once (for the configuration files generated including addresses) then stop the plc - exchange the persistence file ( without the config file) This will be improved to 3.5.18.6 and 3.5.20.0. (possible then to generate offline bootproject including full persistenmanager files) - this is if you have not 100% the same bootapplication on the devices. In case you copy the whole Application (PLCLogic) directory it should work out of the box - but only with 100% same bootprojects as mentioned above. By the CODESYS Automation Server would help solve this too.
Last updated: 2023-10-19
Post by davidbo on RPI is license server down
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It was but is running again
Last updated: 2023-10-19
Verhalten bei zu kurz gesetzter Task-Zyklus-Zeit
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Verhalten bei zu kurz gesetzter Task-Zyklus-Zeit
Last updated: 2023-10-19
Post by markusef3 on Verhalten bei zu kurz gesetzter Task-Zyklus-Zeit
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Hallo zusammen, ich habe eine Frage bezüglich dem Verhalten der Tasks. In der Hilfe und hier im Forum sowei im Internet konnte ich diesbezüglich leider nichts finden. Wie genau verhält sich Codesys wenn mehrere zyklische Task eingestellt sind und bei einem ab und zu die Abarbeitung des angehängten Programmes länger dauert als das Aufrufintervall eingestellt ist. D.H. der nächste Aufruf würde "theoretisch" erfolgen bevor alles im Program abgearbeitet ist. Z.B. Intervall ist 1ms, Abarbeitung dauert manchmel 1,1ms oder länger. (Watchdog ist zwar eingeschaltet, aber größer gewählt als das Zyklische Intervall zum Aufruf. Watchdog soll jetzt auch nicht das Thema sein). Was passiert in so einem Fall? - Wird das Programm zuerst zu Ende abgearbeitet und dann der nächste Aufruf gestartet? - Wird das Programm "mittendrin" unterbrochen und dann neu gestartet? - wie genau muss ich mir das vorstellen wenn dem so ist? - ...... - ...... Ich konnte überall nur Anleitungen finden wie die Tasks zu konfigurieren sind, jedoch nichts dazu was im oben genannten Fall genau passieren wird. Gruss Markus
Last updated: 2023-10-19
Jitter problems on imx8
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Jitter problems on imx8
Last updated: 2023-10-19
Post by mondinmr on Jitter problems on imx8
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SOLVED!!! In this imx8 max_cstate=1 in kernel boot parameters is not working! We found a workaround: #include <stdio.h> #include <fcntl.h> #include <unistd.h> #include <stdint.h> int main(void) { int fd; uint32_t value = 0; fd = open("/dev/cpu_dma_latency", O_WRONLY); if (fd < 0) { perror("Error opening /dev/cpu_dma_latency"); return 1; } if (write(fd, &value, sizeof(value)) != sizeof(value)) { perror("Error writing to /dev/cpu_dma_latency"); close(fd); return 1; } while (1) { pause(); } } This simple code launched before CODESYS do the same work! Now jitter is identical as measured by cyclictest!
Last updated: 2023-10-19
I don't know if this is where I should ask this, but I'm trying to get a Codesys OPC UA Client set up with a Kepware OPC UA Server
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I don't know if this is where I should ask this, but I'm trying to get a Codesys OPC UA Client set up with a Kepware OPC UA Server
Last updated: 2023-10-19
Post by john-martin on RPI is license server down
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In this moment the server is down.
Last updated: 2023-10-19
Post by romrot on I don't know if this is where I should ask this, but I'm trying to get a Codesys OPC UA Client set up with a Kepware OPC UA Server
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Trying to create a Data Source under Data source manager, but I'm having issues with security. I get "BadUserAcessDenied" I don't know if there is something special I need to do on the Kepware server to make this work or what.
Last updated: 2023-10-19
Post by arnaud on eCockpit - unable to start simulation
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Thanks for your help. Seems like one of these libraries are the root cause indeed.
Last updated: 2023-10-20
CAN Problem unter CODESYS Control auf BeagleBone Black
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CAN Problem unter CODESYS Control auf BeagleBone Black
Last updated: 2023-10-20
ESC-Regler über PWM Signal steuern
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ESC-Regler über PWM Signal steuern
Last updated: 2023-10-20
creationg on dynamic widgets
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creationg on dynamic widgets
Last updated: 2023-10-20
eCockpit - unable to start simulation
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eCockpit - unable to start simulation
Last updated: 2023-10-20
Post by mawaloc on creationg on dynamic widgets
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Hello, Is there is any way to create a different dynamic widget than what can be found on codesys. I would like to create similar with adding things like limits etcc. in codesys I just see 180 deg or 360 deg. and shape are differents Any tutorial on it. ThankYou
Last updated: 2023-10-20
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