Identification of an optional spindle (P-CHAN-00415)
| P-CHAN-00415 | Identify an optional spindle | 
| Description | If this parameter is assigned the value 1, a check is made at start-up whether this spindle is known in the system. If the check is positive, it is available in the NC channel after start-up. If the check is negative, this spindle is removed form the configuration data of the NC channel. It is not available after start-up and no interface is created to this spindle. | 
| Parameter | spindel[i].optional | 
| Data type | BOOLEAN | 
| Data range | 0/1 | 
| Dimension | ---- | 
| Default value | 0 | 
| Remarks | If the main spindle is marked as optional and the check is negative, no main spindle is available in the NC channel after start-up. This is indicated by a message. |