> 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/benutzerverwaltung/benutzergruppe/zugriffsrechte_allgemein.md).
# General access privileges
## Block movement of main menu
Blocks movement of the main window in all modules. All applications to which the user has access are launched with the size and position settings of the last session, and can be neither moved nor minimized. They may be overlaid by other applications though.
## Windows always in foreground
ACRON windows are always displayed on top (in the foreground).
All ACRON modules to which the user in question has access are launched with the size and position settings of the last session, and are always displayed in the foreground.
Note
If an ACRON module was maximized during the last session, and you have additionally activated the "[Block movement of main menu](#verschieben-sperren)" option, the module always fills the screen, and can be neither minimized nor overlaid by other application windows. In such cases it is not possible to move another application, including the ACRON Online Help, into the foreground.
## Lock printer configuration
Prevents modification of the printer configuration in the ACRON modules.
## External call of all applications with login transfer
Allows starting ACRON modules by means of a login name transmitted by [command line parameter](/acron-9.3/en/kzp_mit_parameter_starten.md).
The advantage of this is that the usual user login when launching an [ACRON module](/acron-9.3/en/acron_der_anlagenchronist/die_acron_module.md#symbole) is not run through. This startup mode can be useful, for example, if you want to start ACRON via a control system with its own user administration and want to apply its user data.
Note
The ACRON Designer itself cannot be started with the transmitted login name, for security reasons.
## Restriction of data volume
You can limit the volume of requested data. This can be useful where there are very high volumes of data in order to cut query times and so speed up data output. The maximum time frames are set by default.
Note
These settings are used at all points where data are requested (e.g. data output, exports and reports in ACRON Reporter and ACRON Graph).
### Restricting the data volume for process data in hours
Time frame for which the user may retrieve data, up to maximum.
If user administration is not enabled, the default settings apply:
| | |
| ------------ | ----------- |
| | Maximum |
| Process data | 26400 hours |
Note
These settings are used at all points where data are requested (e.g. data output, exports and reports in ACRON Reporter and ACRON Graph).
### Restricting the data volume for interval data in days
Time frame for which the user may retrieve data, up to maximum.
If user administration is not enabled, the default settings apply:
| | |
| ------------- | --------- |
| | Maximum |
| Interval data | 1825 days |
Note
These settings are used at all points where data are requested (e.g. data output, exports and reports in ACRON Reporter and ACRON Graph).
### Restricting the data volume for day data in years
Time frame for which the user may retrieve data, up to maximum.
If user administration is not enabled, the default settings apply:
| | |
| ---------- | -------- |
| | Maximum |
| Daily data | 15 years |
Note
These settings are used at all points where data are requested (e.g. data output, exports and reports in ACRON Reporter and ACRON Graph).
### Restricting the data volume for week, month and year data in years
Time frame for which the user may retrieve data, up to maximum.
If user administration is not enabled, the default settings apply:
| | |
| -------------------------- | -------- |
| | Maximum |
| Weekly/monthly/annual data | 50 years |
Note
These settings are used at all points where data are requested (e.g. data output, exports and reports in ACRON Reporter and ACRON Graph).
## Access granted for
Display of objects to be available in the modules.
Access privileges (see also [Working with the checkbox tree)](/acron-9.3/en/erklaerung_zur_bedienung.md#checkboxtree) is possible for:
* Process variables (Write access is necessary in order to overwrite values and grant permissions in the Reporter)
* Reports
* Events
* Input masks (possibility only exists if access to all or individual process variables is also allowed)
* Alerts (only if the user does not have the right to [configure alerts](/acron-9.3/en/anlagenkonfiguration/benutzerverwaltung/benutzergruppe/zugriffsrechte_alert.md#alarmgruppen) and [edit alert groups](/acron-9.3/en/anlagenkonfiguration/benutzerverwaltung/benutzergruppe/zugriffsrechte_alert.md#alarmgruppen) in the Designer)
* Service
---
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