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6.1.7 MULTIPLE USERS AND CAM ACCESS
The CAM Interface supports multiple users but not multiple sessions. This means that it is possible to access
the CAM Interface of the same CAM Module from different computers or browsers simultaneously, but users
cannot be on different levels of the menu. For this reason the CAM Interface is refreshed every 10 seconds to
request the current valid menu screen.
Due to this synchronization scheme the menu screen will change for all current users even if just one of them
interacts with the CAM Interface dialog.
Multiple users interacting with a single CAM Module can lead to synchronization errors. For instance, when
one user tries to access a menu that has not been refreshed after another user has interacted with it, a
synchronization error will occur. This will display a Status error. This and other errors are handled by the
CAM Interface to provide safe and consistent interaction.
6.1.8 ERROR HANDLING
When a situation results in an error and does not permit proper communication with the CAM Module, an
error message will be displayed. There are different conditions that can lead to errors. The table below lists
the possible error messages and their descriptions.
The status count value received from GUI is not the same as the one in the
CAM Interface. This means that the GUI could be in another level of the
menu which can lead to a non desired operation.
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