With RtVars - Real Time Variables
you are able to use the power of RTA in your applications. RtVars
are Real Time Variables that can be accessed using Visual Studio
program languages like Visual Basic (via ActiveX components) or
Visual-C (via DLLs). In addition we have developed a special even-driven
real-time language called RtPL.
RtPL is a BASIC like programming language that was primarily developed
for applications that want to take full advantage of RtVars allowing
the definition of ECA (Event Condition Action) rules to describe
RtVars provide not only access
to data in the RtDB but also to operating system information (environment,
timers etc.) and many other data sources. With a special development
kit customer specific RtVars can be implemented allowing transparent
and simple use of otherwise complex data access and manipulation
RtVars can be active or passive.
Active RtVars allow for external triggers to be activated whenever
the value of the RtVars changes. Due to that a system based on RTA
is mainly event-driven. This allows for instance for hot-reconfiguration
Of course event-driven systems are tricky as events can fire at
any time. We are aware of that problem and hence defined specific
data types in RTA in order to ensure efficient data flow and data
consistency in the event-driven environment.
What types of data does