# Station Display

URL: https://irs.systems/en/docs/ltt/documentation/ltt-gui-manual/lttgui/mainwindow/stationdisplay

The test station display is the central part of the main window and shows the configured test stations as a rectangle, which contains various information about the individual test stations.

> A **test station** represents the physical location where a **device under test** (DUT) can be connected to the LTT. The LTT may have more than one test station.

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![Station](/docs/assets/ltt/assets/station.png)

1. test station number ([more info](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/f3projectwizard/teststationconfiguration))
2. DUT type and name ([more info](../Dialogs/F11testconfiguration/))
3. runtime values ([more info](/en/docs/ltt/documentation/ltt-gui-manual/teststand/customsteptypes/sendvaluestringvalue))
4. requested state (e.g. _start requested_, _stop requested_)
5. custom status message or error text ([more info](/en/docs/ltt/documentation/ltt-gui-manual/teststand/customsteptypes/sendstatus))
6. current runtime | cycle counter | error counter(s) ([more info](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/errorstatuscolors))

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A test station display can have the following appearances:

![Station Off](/docs/assets/ltt/assets/station-off.png) **Stopped test station** Status text is "OFF". Runtime values are not displayed.

![Station Running](/docs/assets/ltt/assets/station-running.png) **Running test station** Status text und runtime values are updated from TestStand. Runtime gets updated periodically.

![Station Limit Error](/docs/assets/ltt/assets/station-limit-error.png) **Error limit reached** Status text is "error limit reached \[nnnn]", where \[nnnn] is the error number ([more info](../Dialogs/F5limitconfiguration/)) of the corresponding limit test, whose error limit is reached. A test station stops if a limit test has reached its error limit. Details can be found in [history log](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/altf10historydata).

![Station Limit Not Found](/docs/assets/ltt/assets/station-limit-not-found.png) **Limit not found** Status text is "limit not found". The test station stops if a limit test step cannot find its limit. Details can be found in [history log](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/altf10historydata). See [troubleshooting](/en/docs/ltt/documentation/ltt-gui-manual/troubleshooting/limitnotfound) for further explanations.

![Station TS Error](/docs/assets/ltt/assets/station-ts-error.png) **Testplan error** Status text is "testplan error". The test station stops if there is an error during TestStand execution (e.g. syntax error). The exact error reason is shown as a tooltip if the mouse pointer is moved over the status text. Further details can be found in [history log](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/altf10historydata). See [troubleshooting](/en/docs/ltt/documentation/ltt-gui-manual/troubleshooting/testplanerror) for further explanations.

![Station GUI Error](/docs/assets/ltt/assets/station-gui-error.png) **GUI error** The test station stops if there is an error in GUI software. This can be due to a software bug but also due to invalid data sent from TestStand to GUI. The exact error reason is shown as a tooltip if the mouse pointer is moved over the status text. Further details can be found in [history log](/en/docs/ltt/documentation/ltt-gui-manual/lttgui/dialogs/altf10historydata). See [troubleshooting](/en/docs/ltt/documentation/ltt-gui-manual/troubleshooting/guierror) for further explanations.