When a user logs in through Identity Manager, it logs in internally to PLC runtime and receives a handle (the so-called PLC Session ID). Identity Manager packs this PLC handle in the JWT (token). The user now is able to access the PLC by using this JWT, e.g. via the Datalayer. The format was changed from CODESYS 3.5.17.x to CODESYS 3.5.18.x.
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