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Yes, making the changes to demo should verify that things are working.

I assume that you are going to want this kind of logic for more than one occupancy sensor. ?I have expanded the script to support any number of sensors and any combination of signal masts. ?The new file is at?/g/jmriusers/files/ProblemsBeingWorkedOn/dsand/Demo-v2.py

Some comments about the changes:

Lines 12-14: This is a list of the occupancy sensors. ?For testing, I used "provideSensor" but these should be "getSensor" with the user names instead of system names.

Lines 19-24: ?This is a Python dictionary that has the sensor name as a key and a list of tuples as the value. ?A tuple is a short list of values. ?In this case the signal mast user name, the aspect name and the number of seconds to wait before setting the aspect. ?The second entry shows everything on one line. ?The first entry shows how to split the line if it becomes too long.

Lines 31-35: ?The "setup" function is passed the sensor name and the new state. ?The state will be 2 for Active and 4 for Inactive. ?The name is used to select the proper actionList entry. ?The current logic in the "handle" function runs for both the sensor becoming active and inactive. ?Since I don't understand what you are actually trying to do I decided to include the sensor state in case it is needed.

Line 38: ?Convert the value (a list of tuples) into a Python list with a row for each tuple.

Line 40: ?This splits the tuple into three variables.

Lines 49-55: ?Expand the "propertyChange" event to extract the data, create the SignalLogic instance, pass the data and give it a name.

Lines 65-75: ?Use the sensorList to remove old listeners and add new listeners.

Here is the console log with the changes.

17:44:41,972 rit.jython.exec.AbstractAutomatonDemo INFO? - Start Demo [AWT-EventQueue-0]

17:44:41,983 rit.jython.exec.AbstractAutomatonDemo INFO? - Add listener for ISoccupancySensor [AWT-EventQueue-0]

17:44:41,983 rit.jython.exec.AbstractAutomatonDemo INFO? - Add listener for ISanotherSensor [AWT-EventQueue-0]

17:44:41,983 rit.jython.exec.AbstractAutomatonDemo INFO? - Demo setup is done [AWT-EventQueue-0]

17:44:59,243 rit.jython.exec.AbstractAutomatonDemo INFO? - SignalLogic setup: name = ISoccupancySensor, state = 4 [AWT-EventQueue-0]

17:44:59,245 rit.jython.exec.AbstractAutomatonDemo INFO? - S1 :: Clear [ISoccupancySensor]

17:45:02,251 rit.jython.exec.AbstractAutomatonDemo INFO? - S2 :: Approach [ISoccupancySensor]

17:45:04,257 rit.jython.exec.AbstractAutomatonDemo INFO? - S3 :: Stop [ISoccupancySensor]

17:45:14,625 rit.jython.exec.AbstractAutomatonDemo INFO? - SignalLogic setup: name = ISanotherSensor, state = 4 [AWT-EventQueue-0]

17:45:14,626 rit.jython.exec.AbstractAutomatonDemo INFO? - Q1 :: Clear [ISanotherSensor]

17:45:17,632 rit.jython.exec.AbstractAutomatonDemo INFO? - Q2 :: Approach [ISanotherSensor]

17:45:22,639 rit.jython.exec.AbstractAutomatonDemo INFO? - Q3 :: Stop [ISanotherSensor]

Dave Sand