1016 * Expected data is unavailable for the requested time range due to an un-mounted volume, an off-line archive or tape, or similar reason for temporary unavailability.
1031 * The client requested history using a timestamp format the server does not support (i.e requested ServerTimestamp when server only supports SourceTimestamp).
1126 * The related EngineeringUnit has been changed but this change has not been applied to the device. The Variable Value is still dependent on the previous unit but its status is currently Bad.
1171 * It is delivered with a dependent Variable value when a dominant Variable has changed, the value is not legal and the change has not been applied.
1181 * It is delivered with a dependent Variable value when a dominant or dependent Variable has changed, the value is not legal and the change has not been applied.