# ID 21342

Memory for external variables is not configured.
Description | The CNC was instructed by the PLC or another process (e.g. Object Browser) to provide the description of the memory allocation for the external variables. During this operation, it is detected that there is no memory allocated for using external variables.
Response | Class | 2 | The description of the memory allocation for the external variables is not provided.
Solution | Class | 7 | Parameter P-STUP-00037 must be assigned a value > 0.
Error type | -