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The NotifyEventStr method generates system events. Events are sent to all kernels connected to the local kernel. An event is specified as a group of String arguments.
Method call syntax
function NotifyEventStr(objtype : String, id : String, event : String, param<value> [, param<value>] : String )
Method arguments:
- objtype – Required argument. The type of the object that the event should be generated for. It It takes the following values: Type – String, range – existing object types.
- id – Required argument. Identification number of the object of the type set in the objtype argument. It takes the following values: Type – String, range – existing identification numbers of the object of the specified type.
- event – Required argument. The event to be generated. It takes the following values: Type – String, range – available events for the objects of the specified type.
- param<value> – Required argument. Several arguments of this type can be specified. The parameters of the event.
One parameter has the following syntax:
"param<value>", where
param – name of the parameter;
value – value of the parameter.
Several parameters have the following syntax:
"param1<value1>,param2<value2>…".
Elements of the list are separated by commas with no white space. If no parameters need to be specified, an empty string is used:
DoReactStr("CAM","1","MD_START","");
The param argument can take the following values: Type – String, range – available parameters of the event. The value argument can take the following values: Type – String, range – depends on the parameter.
Note
Two types of system messages are available in the Axxon PSIM system: events and actions.
The events usually contain some information and are used as notifications sent to all Axxon PSIM kernels connected to each other during the system setup.
The actions are the control commands sent to specific objects. An action is transmitted only to the kernel where the related object belongs, and not to the whole system.
The DoReactStr and DoReact methods are used to generate actions. The NotifyEventStr and NotifyEvent methods are used to generate events.
Usage examples
Problem. When an alarm is received, send the “panic lock” event corresponding to the camera region. For camera identification numbers from 1 to 4, use region 1; for camera numbers from 5 to 10, use region 2.
if (Event.SourceType == "CAM" && Event.Action == "MD_START")
{
var regionid;
if (Event.SourceId <=4)
{
regionid = "1";
}
if ((Event.SourceId > 4) && (Event.SourceId <= 10))
{
regionid = "2";
}
NotifyEventStr("REGION", regionid, "PANIC_LOCK", "");
}
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