Category Archives: Allgemein

How to log OPC UA tag values to Apache Kafka…

Posted on 2. May 2021 by vogler

In this article we use the Frankenstein Automation Gateway to subscribe to one public available OPC UA server (milo.digitalpetri.com) and log tag values to Apache Kafka. Additionally we show how you can create a Stream in Apache Kafka based on … Continue reading →

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Automation Gateway with Apache IoTDB…

Posted on 28. April 2021 by vogler

The Frankenstein Automation Gateway can now write OPC UA tag values to the Apache IoTDB. Did some rough performance tests with 50 OPC UA servers and one IoTDB… the IoTDB is pretty impressive fast. Also the data model and terminology … Continue reading →

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Let’s Encrypt Certificate with WinCC OA on Windows

Posted on 23. April 2021 by vogler

This is a manual way to get and use Certificates from Letsencrypt with the Webserver (ULC UX) in WinCC Open Architecture. You have to update the certificate manually before it expires. Temporarily configure IIS (HTTP) to get a new certificate … Continue reading →

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MQTT and GraphQL Gateway for OPC UA

Posted on 13. February 2021 by vogler

Here is an OPC UA gateway with which you can access your OPC UA values via MQTT and GraphQL (HTTP). If you have an OPC UA server in your PLC, or a SCADA system with an OPC UA server, you … Continue reading →

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Flutter: iproxy cannot be opened because the developer cannot be verified

Posted on 14. December 2020 by vogler

sudo xattr -d com.apple.quarantine flutter/bin/cache/artifacts/usbmuxd/iproxy

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Mount Disk Image on Linux

Posted on 2. November 2020 by vogler

If you have created a backup of a disk with dd: dd if=/dev/sdb of=image.img bs=4096 then you can create loop back devices with partitions: losetup -f -P ./image.img  losetup -a then you can mount partition: Another hint: Copy files with … Continue reading →

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How to enable remote docker API…

Posted on 29. July 2020 by vogler

Create a file “override.conf” in /etc/systemd/system/docker.service.d Reload and restart the Docker daemon: Now you can connect for example the Siemens Industrial Edge Publisher to the Docker engine and create a Industrial App from images on your Docker host.

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Mount NFS share on Windows…

Posted on 29. May 2020 by vogler

Linux: /etc/exports add a line /home/vogler *(rw,no_subtree_check,insecure) exports -a In this example we do it very insecure… Windows: mount -o anon <hostname>:/home/vogler z:

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Simple GraphQL requests…

Posted on 6. May 2020 by vogler

A GraphQL server can also be queried with a simple GET request:

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SSH Keep Alive

Posted on 27. April 2020 by vogler

Lot of times my ssh session get broken because I didn’t do anything for a while. Sometimes I have started “top” just that the connection does not get broken because of inactivity. But this is not really what I wanna … Continue reading →

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