Indicates the execution system in which a VI runs.
| Name | Value | Description | 
|---|---|---|
| eESysInvalid | 0 | Invalid execution system | 
| eESysUserInterface | 1 | User interface | 
| eESysNormal | 2 | Standard | 
| eESysInstrIO | 3 | Instrument I/O | 
| eESysDAQ | 4 | Data acquisition (DAQ) | 
| eESysOther1 | 5 | Other 1 | 
| eESysOther2 | 6 | Other 2 | 
| eESysSameAsCaller | 7 | Same as caller |