Server: ST Scripts

The programmer can write script code to manage the server data structures of a project.
The server data structures are:
 
  • Tags
  • Alarms
  • Datalog
  • Recipes
  • Timers
  • Pipeline
  • Users
  • Management of FDA support and event log
  • Date-Time management
  • Access to the file system
  • Serial port management
  • Ethernet port management
 
In general, therefore, all elements of the project except the user interface can be managed by writing script code.
 

How to access the application objects

In order to access previously defined objects, it is necessary to use the methods and events that are exposed by the macro components that virtualize the objects themselves.
 
For example, to be able to read and write a TAG it is sufficient to invoke the methods TAG_READVALUE and TAG_WRITEVALUE.
Below is an example of script code that reads a Counter tag, increases its value and writes it into the Counter1 tag.
 
FUNCTION Increment
a := TAG_READVALUE('Contatore');
a := a+1;
TAG_WRITEVALUE ('Contatore1')
END_FUNCTION;
 
In script code it must be inserted in the keywords FUNCTION and END_FUNCTION