E_IED_STATE

Operating mode of the server.

TYPE E_IED_STATE :
(
    eIED_STATE_IDLE := 0,
    eIED_STATE_INITIALIZING,
    eIED_STATE_PREOP,
    eIED_STATE_OPERATIONAL,
    eIED_STATE_STOPPING
);
END_TYPE

The server is in the IDLE state after the server-code has been downloaded onto the target device and none of the server-actions (A_INIT oder A_OPERATE) have been called.
At the call of the action A_INIT the server changes into the INITIALIZING state. In this phase the internal database will be initialized (the instances of the common data classes, attributes, logical nodes, ... will be generated). After that the server changes into the PREOP state. In this state more application-dependent data classes can be generated in the database, for example data sets. When all of the data sets have been configurated the OPERATIONAL state can be changed by calling the action A_OPERATE. In this state the server can build a connection to the client and can change data actively.

Requirements