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License check 

License check  General information In case of a chargeable app, a license check should be integrated into the app. The license check verifies the presence of a license on the device or on a LIC SD card located in the device. The license must first be… Read More

Folders and PLCnext Technology environment variables

Folders and PLCnext Technology environment variables The following table lists environment variables on the controller, representing directories that are required for app administration. The values of these environment variables are set to the defaults shown below, using information in the file /etc/plcnext/Device.acf.settings. These default values do not need to be… Read More

PLCnext Technology Extensions

PLCnext Technology Extensions Extensions of the runtime can be integrated into a system in the form of an app. With a PLCnext Technology Extension, the runtime can be extended by the following elements: A process dependent on the runtime (process) A component (component) A Shared Library (library), which usually… Read More