Time needed for updating is mainly depending on your setup.
As there were major changes between version 1.12 and 1.20 Some things need to be considered:
You will have to ctrlX WORKS 1.20 if you like to open your PLC project and do changes afterwards
It is recommended to update your PLC project to corresponding version
drive integrated ctrlX CORE system app version s need to fit to the ctrlX DRIVE runtime version. See e.g. topic "Drive runtime to use for ctrlX CORE 1.20 and 1.12"
Using an "old" configuration can lead to the need to reset the scheduler settings. See e.g. topic "Motion app hangs in Configuration/Running after booting".
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