Owner manual

Doors.NET Reference Manual
- 473 -
NOTE: If the Situation Manager is configured to be Hardware Driven then the following
could occur:
1. A controller that is offline has a number of events stored that involve Global Lock or
Global Unlock. When that controller comes online, those events will be process by
the Application Server. If they are older than the time specified by the Situation
Manager’s Ignore Older Events field, then nothing happens to the current state. If
they are not older, they will be processed as normal events. This may or may not
change the current Global Lock/Unlock state depending on if another input had
already placed the system into a Global Lock/Unlock state and which state has pre-
cedence. If the system is in the Normal State when the controller comes back
online and started uploading its transaction buffer, and those events are not con-
sidered “old,” the system state may change rapidly.
2. A controller that has a Global Lock or Global Unlock input that is active is now off-
line. In this condition, the state will not restore to Normal until that controller comes
back online and reports that the input is now normal. This is by design and is one
of the reasons why the mixed-mode of hardware/software precedence is allowed.