TIA botu_ Concrete method of making analog input and output Global Library Based on SCL language

TIA Portal _ be based on SCL The concrete method of making the global library of analog input and output with

One 、 Analog input block ： establish FB, Define the interface of the block , As shown in the figure below ：

The program contains a high alarm , Low alarm , This variable is required for general upper computer alarm .
Polarity selection , Suitable for a wider range of applications .
Deadband width , Convenient filtering .

SCL The language program is shown in the figure below ：




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