An extension of the Alarm model where a server can interact with a client. The client does not need to be programmed to the specific action of the Server, but can just be configured to use the standard information provided by this Alarm 7 condition type.
They are typically used when a Server has entered some state that requires intervention by a Client. For example, a Server monitoring a paper machine indicates that a roll of paper has been wound and is ready for inspection. The Server would activate a Dialog Condition indicating to the user that an inspection is required. Once the inspection has taken place the user responds by informing the Server of an accepted or unaccepted inspection allowing the process to continue. All accomplished via a standard Dialog.