# Array for data structures of the AXES_GROUP_REF type

The data structure AXES_GROUP_REF must exist for each axis group, and must be available in all programs pertaining to the PLC project's tasks. To ensure this, all AXES_GROUP_REF structures are managed in an array named gAxesGroupRef.

For PLC applications based on the CoDeSys (3S) environment the array gAxesGroupRef is provided by the library McpBase.lib as global variable.