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Forte v1.9 with open62541 on RPI [message #1786683]

Wed, 09 May 2018 05:24

Eclipse User

Hello guys,

Was wondering if anybody had successfully compiled and tested forte v1.9.0 with open62541 v0.3 for the raspberry pi?

I've been trying to cross-compile from windows but that was unsuccessful. So I changed to ubuntu for cross-compilation which compiled successfully but now i face an error on the RPI. While trying to run forte on the RPI, I have the following message "./forte: /usr/lib/arm-linux-gnueabihf/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by ./forte)" but libstdc has already been installed.

I'm using raspbian based on Jessie Lite.

Thanks.

Regards,
Daniel

Re: Forte v1.9 with open62541 on RPI [message #1786698 is a reply to message #1786683]

Wed, 09 May 2018 10:52

Eclipse User

Hi,

you do need libstdc++ installed, libstc is a different library.

You could also try to compile direct on the Raspberry Pi to check if that works.

Best regards,
Martin

Re: Forte v1.9 with open62541 on RPI [message #1786716 is a reply to message #1786698]

Wed, 09 May 2018 14:17

Eclipse User

I think invoking sudo apt-get install libstdc++6 should solve this issue on the pi.

Re: Forte v1.9 with open62541 on RPI [message #1786739 is a reply to message #1786716]

Thu, 10 May 2018 07:35

Eclipse User

Dear all,

libstdc++6 was already installed but it didn't work either for jessie.

I've managed to get forte to run now by changing the OS to Raspbian Stretch.

So... to carry on with the OPC-UA tutorial. I went about doing the flipflop app and I realise the monitoring function isn't working on the RPI. All the values show N/A. I replicated the same app on windows running forte as a localhost and monitoring works fine.

Did i miss out on any extra steps to activate monitoring for the RPI? I've double checked "FORTE_SUPPORT_MONITORING" for cmake options and its set to ON by default.

Monitoring used to work for me on forte v1.8.4 for the RPI. Can't remember if there was anything special that was needed to enable monitoring.

Thanks for the help!

Regards,
Daniel

Re: Forte v1.9 with open62541 on RPI [message #1786790 is a reply to message #1786739]

Fri, 11 May 2018 11:26

Eclipse User

when you are cross compiling you need to ensure that the cross environment usese the same library versions then your target system. Jesse and Stretch are quite appart and Ubuntu is always quite on the most recent lib versions. I assume that this was then the problem.

Regarding your monitoring issue: If you can deploy and have "FORTE_SUPPORT_MONITORING" enabled monitroing should work. I don't know of anything special.

Re: Forte v1.9 with open62541 on RPI [message #1786949 is a reply to message #1786790]

Wed, 16 May 2018 04:49

Eclipse User

Dear Dr. Alois,

What I've done is to compile forte natively on the RPI right now.

I think there might be some issues for the monitoring mechanism on V1.9 for the RPI. I've tried compiling on both Jessie and Stretch Raspian, with and without the OPCUA library and it still shows up as N/A when i try to monitor remotely from a Win10 machine.

v1.8.4's monitoring works fine on both Jessie and Stretch.

Please let me know if there's anyway i can help to debug this.

Regards,
Daniel

Re: Forte v1.9 with open62541 on RPI [message #1786957 is a reply to message #1786949]

Wed, 16 May 2018 07:26

Eclipse User

Hi Daniel,

this is really strange. Thanks a lot for your offer in helping us to track this down.

Could you provide us a screenshot of your system configuration. Do you have two devices with the same ip configured in it? This is now a problem. Could you get us your .log file from your workspace?

Cheers,
Alois

Re: Forte v1.9 with open62541 on RPI [message #1787476 is a reply to message #1786957]

Sat, 26 May 2018 01:34

Eclipse User

Dear Dr. Alois,

Sorry for the late reply. Attached are the details you requested.

There's only one RPI running on the same IP address. Seems like from the log, there is no viable address to monitor from but the application deployment to the RPI is actually successful as i could see those OPCUA variables from UaExpert.

Regards,
Daniel

Attachment: Sys_config.PNG
(Size: 18.65KB, Downloaded 124 times)
Attachment: Application_Flipflop.PNG
(Size: 65.00KB, Downloaded 142 times)
Attachment: RPI_log.txt
(Size: 176.64KB, Downloaded 137 times)

Re: Forte v1.9 with open62541 on RPI [message #1787495 is a reply to message #1787476]

Sat, 26 May 2018 15:20

Eclipse User

Dear Daniel,

thanks for all the infos. I'm not sure how to interpret the log. But I see that you have a double quote at the end of your MGR_ID config value. This is an invalid value. It looks like that the deployment handles this more gracefully compared to the monitoring. Could you try to remove the double quote at the end and check if it is then working?

Cheers,
Alois

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