Implementation as PLC library

To access the HLI, a PLC library is provided for use by the PLC application developer. This library is implemented specifically for various PLC systems. The table below contains the names of the libraries for the supported PLC systems.

PLC system	KW	3S	TwinCAT 2	TwinCAT 3
HLI PLC library	hli.zwt	hli.lib	TcCncHli.lib	Tc2_CncHli

The following is implemented in this library...

data structures which are components of the HLI.
global variables that are used to access the elements of the HLI
function blocks which are used to initialise global pointers