# FIELDEVAL System Variable [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [System Variables](Help%20System/GSTARCAD/2018/System%20Variables/(System%20Variables).md) → [F](Help%20System/GSTARCAD/2018/System%20Variables/F/(F).md) ## Function Description: The FIELDEVAL system variable is used to control how fields updates. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 31 | | Range | 0 \~ 31 | ## System Variable Value: **0:**Do not update **1:** update when open it **2:** update when save it **4:** update when plot it **8:** update when eTransmit it **16:** update when regenerate it **Note：**the "date" field is updated by UPDATEFIELD system variable, it will not automatically update based on DIELDEVAL system variable. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/F/FIELDEVAL%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/F/FIELDEVAL%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/F/FIELDEVAL%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/F/FIELDEVAL%20System%20Variable.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/F/FIELDEVAL%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/F/FIELDEVAL%20System%20Variable.md)