Issue a message with format parameters

Its possible to transfer one or more variables with a message. This example shows how to do it.

1. Create a PLC Project like in the previous Sample
2. Add following variables to the variable configuration:
3. The value 'value' will be transferred; The string 'format' describes the data format.
4. value     : DWORD    := 0;
   format    : STRING   := '%d';
3. Now Change the configuration for the Event:
4. (* Event 2 *)
   CfgEvent2.Prio := 0;
   CfgEvent2.bQuitRequired := TRUE;
   CfgEvent2.Flags := TCEVENTFLAG_LOG OR TCEVENTFLAG_SRCID;
   CfgEvent2.StreamType := TCEVENTSTREAM_SIMPLE;
   CfgEvent2.ProgId := 'TcEventFormatter.TcXmlFormatter';
   CfgEvent2.Id := 2; (* Meldung 2*)
   CfgEvent2.SourceId := 17001; (* 17001: Achsregelung *)
   CfgEvent2.DataFormatStrAddress := ADR(format);
   CfgEvent2.Class := TCEVENTCLASS_ALARM;
   
   event2(
   NETID:= '',
   PORT:= 110,
   Event:= bSetEvent2,
   EventQuit:= bQuitEvent2,
   EventConfigData:= CfgEvent2,
   EventDataAddress := ADR(value),
   EventDataLength := SIZEOF(value),
   TMOUT:= t#10s);
   
4. Trigger the event

You can transfer multiple variables by wrapping them inside a structure. Then the format string must define the order of the variables inside the struct.

When a string is transferred with the eventdata, this string must be the last element in the structure. Only one string at a time may be transferred.

(*data types*)
TYPE ST_EventData1 :
STRUCT
    axis   : UDINT;
    pos    : LREAL;
    text   : STRING;
END_STRUCT
END_TYPE

(*variable-declaration*)
...
format     : STRING := '%d%f%s'
Eventdata1 : ST_EventData1;
... 

(*PLC ode*)
...
EventDataAddress    := ADR(Eventdata1),
EventDataLength     :=SIZEOF(Eventdata1),
...

Requirements