> For the complete documentation index, see [llms.txt](https://docs.videc.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.videc.de/acron-9.3/en/anlagenkonfiguration/verfahrensgroessen/extvg/register_allgemein.md).

# General tab

### Connection status

Display of the external process variable's connection status

### Output format / Output format - time values

Display of the data output/time format

### Key

Display of the entry that serves as a tool for filter conditions in the Form Designer, such as to hide or manipulate specific table rows.

### Type of calculation variable

Display of the type of calculation variable:

#### Standard calculation variable

This type essentially corresponds to the auto and manual variables. The value basis for the calculation is defined, as is/are the compression level(s) for which the result is to be delivered. The calculation results are stored on a physical medium.

#### Live calculation variable

This type enables calculations to be performed using values of external process variables. Multiple analysis levels can be selected for the data basis. No compression can be selected – the data basis and calculation result always belong to one compression level.

<details>

<summary></summary>

The calculation variable forms the average value for two process variables \[(PV\_1 + PV\_5)/2]

The selected analysis levels are Interval and Day.

The calculation variable for interval data and daily data is available in the Production data area of the Reporter. For interval data, the value of the calculation factor is the average of PV\_1.ival and PV\_5.ival; for daily data it is the average of PV\_1.dval and PV\_5.dval.

As the values of external process variables are only available when the connection to the remote plant is active, these calculation variables can only deliver results then.

</details>

Note

Live calculation variables cannot be used in other calculation variables.

### Connection properties <a href="#verbindungseigenschaften" id="verbindungseigenschaften"></a>

#### Identification

Display of the connection identification

#### Name

Display of the connection name

#### TCP/IP address

Display of the server TCP/IP address

#### Server TCP/IP port

Displays the server TCP/IP port


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