# ERSTATE System Variable [GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [System Variables](Help%20System/GSTARCAD/2017/System%20Variables/(System%20Variables).md) → [E](Help%20System/GSTARCAD/2017/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 --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/E/ERSTATE%20System%20Variable--a87cb67b6658.md) · [GstarCAD 2018](../../../2018/System%20Variables/E/ERSTATE%20System%20Variable--a87cb67b6658.md) · [GstarCAD 2019](../../../2019/System%20Variables/E/ERSTATE%20System%20Variable--a87cb67b6658.md) · [GstarCAD 2020](../../../2020/System%20Variables/E/ERSTATE%20System%20Variable--a87cb67b6658.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/E/ERSTATE%20System%20Variable--a87cb67b6658.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/E/ERSTATE%20System%20Variable--a87cb67b6658.md)