State information of a platform
At first it is tried at start up of the control to load the retain data record, stored during the last shut down. If this is not successful, it is tried to load the data record of the previous shut down of the control.
If a data record could be loaded, before taking over it is checked for valid data. The taking over of the retain data is started by a HLI command (see also chapter 13.1.2).
The read retain data record is valid | |
Description | The read data record contains valid retain data. |
Information flow | CNC -> PLC |
Unit | - |
ST path | pPlatform^.addr^.StatePlatform_Data.Retain_Data.RetainDataValid |
Data type | BOOL |
Access | PLC reads |
Last retain data record could been loaded. | |
Description | The read data record contains the retain data, which were stored during the last shut down of the control. |
Information flow | CNC -> PLC |
Unit | - |
ST path | pPlatform^.addr^.StatePlatform_Data.Retain_Data.ActDataPresent |
Data type | BOOL |
Access | PLC reads |
Previous retain data record could been loaded | |
Description | The read data record contains the retain data, which were stored during the previous shut down of the control. |
Information flow | CNC -> PLC |
Unit | - |
ST path | pPlatform^.addr^.StatePlatform_Data.Retain_Data.OldDataPresent |
Data type | BOOL |
Access | PLC reads |