> For the complete documentation index, see [llms.txt](https://wecon.gitbook.io/pistudio-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wecon.gitbook.io/pistudio-manual/13.tools/13.1-off-line.md).

# 13.1 Off-line

**Introduction**

\[Off-line] provides function to users for checking the HMI project display on PC.

**Requirement**

Project is compiled and .wmt file exists

**Operating procedure**

1\) Click \[Off-line] button;

2\) Check HMI project display and some functions in Off-line simulator;