Setra System SRCM - Manual (Page 34)

34
Event Log
The SRCM can be enabled with an audit trail of changes made to the configurations/
modes of the system by Supervisor and Operator. When the Supervisor / Opera-
tor changes any configuration through the menu, the action is captured and stored
in a string covering the User profile, Screen name where the parameter is changed.
Parameter name and Value to which it is changed. There will be 5 such instances
stored in non-volatile memory of the unit. Any power failure in the unit will lose the
data and it will be the responsibility of BMS system to log these strings after polling
from the RCM unit through BACnet. RCM unit will store these strings as different
instances of Character String Object.
The value to which the parameter is changed will not be logged for parameters like
User Defined Condition Banner text, Room Label, Message Text, etc., which needs
more memory. Other parameters whose variables are enumerated, real and integer
will be logged till the value to which it is changed.
The string length of each instance of configuration change will be 50 Bytes in data
memory area of the controller.