# FIELDEVAL System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).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. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/FIELDEVAL.html) · © Gstarsoft Co., Ltd.