# Status information of a platform

PLC present
Description | The PLC signals that it is present by setting the value to TRUE.
ST path | gpPform^.plc_present_w
Data type | BOOL
Value range | [TRUE = PLC present, FALSE]
Access | PLC is writing

## Notice

Only if this value is set to TRUE can the PLC influence the NC kernel by platform-specific control units.

Version identifier PLC → CNC
Description | PLC writes the version identifier string of its HLI definition in this element.
ST path | gpPform^.nc_config.hli_version_w.zeichen
Data type | STRING(HLI_INTF_VERSION_NAME_LAENGE)
Access | PLC is writing

Version identifier CNC → PLC
Description | CNC writes the version identifier string of its HLI definition in this element.
ST path | gpPform^.nc_config.hli_version_r.zeichen
Data type | STRING(HLI_INTF_VERSION_NAME_LAENGE)
Access | PLC is reading

Version identifier CNC → PLC
Description | CNC writes the NC kernel version in this element.
ST path | gpPform^.nc_config.nc_kernel_version_r.zeichen
Data type | STRING(HLI_VERSION_NAME_LAENGE)
Access | PLC is reading

Data of the start-up parameter P-STUP-00120
Description | Data configured by the user in the start-up list with the parameter P-STUP-00120 are available on the HLI.
Signal flow | CNC -> PLC
ST path | gpPform^.nc_config.customer_val_r[ ]
Data type | ARRAY [0..HLI_PLATFORM_CUSTOM_MAXIDX] OF UDINT
Access | PLC is reading