Many validated application require that Calibrations, Alarm Setting and User Access settings are secure and can not be altered without authorsation and traceability. SCAN1000 has a special encrypted database for protecting these critical settings.
Many applications, require secure
centralised management of key configuration variables (e.g. FDA, CFR21 and
Networked Systems).
Key configuration parameters include:
- Calibration settings
- Alarm Settings
- User Passwords
These facilities are provided in the ‘Security Database’.
The Security Database allows system critical properties stored in a
centralised security database, outside the configuration. By keeping
the properties separate from the configuration, with the correct access rights, it is possible to:
- Modify the properties while a system is running without needing to stop
or edit the main system.
- Share values between multiple installations, either on a single
computer or multiple computers
connected to a network
- Edit the properties outside the software environment
The Security Database creates three tables of secured parameters:
- Tags – contains values for Name, Scale, Offset and Filter
- Alarms – contains values for Name, Setpoint, Type and Delay Timers
- Users – contains values for Name , UserName, Password, Groups, CanChange,
MustChange,
Changed, Expiry and Timeout
When objects are included in a Security Database, these secure parameters are
no longer available for editing from the individual objects’ properties page. This is because they take on the values
from the central security database at runtime.
The Security database can be encrypted and password protected as required.
A secure stand-alone application, ‘Security Database Editor’, is supplied
with the software to support editing of the Security Databases created:
