%1.exp

%1.exp returns the User defined parameter as enterened in AlphaPro, Users & Stations -> UDP tab.

%2.exp is used to read the User Defined Parameter of the "Related-to" station. In AlphaNet this is supported when the station is in the local exchange where the event is executed.

UDP (User Defined Parameter) is configured in AlphaPro

In the example above, where the UDP field contains "4321":

Expression   Returned value
----------   --------------
%1.exp     = 4321
%1.exp Ma  = 4321 Ma
%1.exp()Ma = 4321Ma
%1.expMa   = Syntax error

Formating of the returned data is supported.

Note: The macro cannot be followed by a character a-z or A-Z. 
This will result in a syntax error. Either a space character must be used, 
or the macro must be followed by empty brackets () if space cannot be used.

Back to Event_Handler#List_of_context_parameters.