Name of the external operating system semaphore (P-RTCF-00005)
| P-RTCF-00005 | Name of the external operating system semaphore | 
| Description | The parameter defines the name of the semaphore for P-RTCF-00001 (interrupt source). | 
| Parameter | external_object_name | 
| Data type | STRING | 
| Data range | Maximum name length dependent on operating system | 
| Dimension | ---- | 
| Default value | * | 
| Remarks | * Note: The default value of variables is a blank string. This parameter is used only if interrupt_source = 3. |