# ERSTATE System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).md) → [E](Help%20System/GSTARCAD/2027/System%20Variables/E/(E).md) ## Function Description: The ERSTATE system variable is used to indicate the "External Reference" palettes turns on or off. (Read-Only) | | | | --- | --- | | Type | Integer | | Saved in | Not saved | | Initial value | Unknown | | Range | 0,1 | ## System Variable Value: **0:**Off **1:**On --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/systemVariables_Egsv/ERSTATE.html) · © Gstarsoft Co., Ltd.