I am sorry @raph7454,
I overlooked the information that you have already installed the package. Unfortunatelly there is no example project for Codesys. If you doubleclick on the GPIO_UniPi, UniPi_Ai or UniPi_Relays you will get to the dialog where you can see available IOs and you can map them to the variables and then you can work with them in the program.

Martin

Hi @raph7454,
then you need to install this package as well: https://store.codesys.com/codesys-for-unipi.html
On this page, you can see a link to Product Datasheet, where you can find more information about how to use the IOs in Codesys.

Best regards,
Martin

Hi @rick3ry,
the evok only engages the pull up resistors via pygpio library. There is no other magic from our side, so you need to consult the behaviour of the diozero library with its authors.

Thank you for understanding,
Martin

Hello @raph7454,
what UniPi PLC do you have?

Best regards,
Martin

Hi @christian,
frankly, we don't use event based tasks at all, since it makes the program harder to read. What is your motivation to use them?

I must say that I don't understand the first example and from what I see it leads to oscillation:

For me, simply using the toggle in Freewheeling NormalOperationTask is straightforward and error free. We use it like this in many situations.

If you want to directly wire DI to DO/RO, take a look at our Direct Switch functionality: https://kb.unipi.technology/en:sw:01-mervis:advanced-modes-of-digital-inputs-hidden

Hello @rick3ry,
the digital inputs are directly connected to the GPIOs of the Raspberry. Please reffer to the technical documentation, mainly page 4.

Best regards,
Martin

Hello @cvrcejir,
unfortunately this is an error in the REST API, not the Evok's web interface. I forwarded this issue to the programmers and let you know once it is fixed.

Thank you for your patience,
Martin

Hello @christian,
yes, it is possible, but it requires to write your own parser of data in ST code. This is an excerpt from help files of how it could be done:

Sorry for the printscreen, but copying from help files loses the end of lines...

Martin

Hi @ntd,
the correct way is to use the Raspbian image and install the packages from our repository. Building from source code should work, but we would like you to avoid that because it can bring whole lot of extra variables into the problem. Also it seems the image is an older installation (based on the kernel version), so I advise to update it.

You can use our image, the UniPian, which is Raspbian with our packages preinstalled.

Hi @ntd,
we would need some log files, namely /var/log/syslog and /var/log/kern.log from the time when the neurontcp service doesn't respond. Also post the output of these commands (execute them as root):

• dpkg -l | egrep "neuron|unipi|raspberrypi-kernel"
• /opt/unipi-bin/fwspi -i 0
• /opt/unipi-bin/fwspi -i 1
• /opt/unipi-bin/fwspi -i 2

You can post it here, or to the support@unipi.technology.