Implementation as PLC library

To access the HLI a PLC library is available for use by PLC application developer. These library is implemented for several PLC systems specifically. The following table contains the name of the library for each of the supported PLC systems.

The library contains

• data structure definitions, which are components of the HLI
• global variable definitions, that are used to access the elements of the HLI
• function blocks, which are used to initialize global pointers to the elements of the HLI