James,
YAAT is procedural oriented but flexible. As such, it is as you described. Set turnout, move at this speed, wait for something to change, etc.
YAAT evolved while helping a guy in England automate trains without block detection. He uses IR detectors at the stations.
The first part of the script has the documentation.
The zip file has a demo panel and text files that I use for testing. The most complex one has two trains coming from branches to the main station and back again. It uses a sensor group to control which train has access to the shared mainline.
I am working on version 1.7 which adds memory variables. This would the provide access to IMCURRENTTIME. That would still be procedural but would allow actions based on time.
Dave Sand
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On Aug 14, 2018, at 12:17 PM, jamespetts via Groups.Io <jamespetts@...> wrote:
David,
thank you for your response. I had heard of YAAT, but the description gave me the impression that it was really only a template for simple procedural scripts of the "set throttle on train no. 21 to 60%, then throw turnouts nos. 7 and 8" sort rather than a system using a higher level of abstraction.
If this impression was incorrect, may I ask where I can find documentation on this and in particular its use in non-trivial instances of timetabled automation?
James.
