Memory size for external variables (P-STUP-00037)
| P-STUP-00037 | Memory size for external variables | 
| Description | This parameter dimensions the memory area available for the external variables of each channel on the HLI. A separate memory area of this size is created for global external variables. The number defined here determines the number of 24-byte blocks of which each of these V.E. memory areas consists. | 
| Parameter | ext_var_max | 
| Data type | UNS16 | 
| Data range | 0 ... MAX(UNS16) | 
| Dimension | ---- | 
| Default value | 0 | 
| Remarks | This parameter is used automatically in TwinCAT systems. |