Serge NOEL
55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
# Drive a turnouts from two CMRI connections.
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#
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# Some CMRI users connect slow-motion switch machines between
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# two CMRI outputs, and then set the outputs to complementary
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# states (one active, one inactive) to drive the machine in
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# the two directions.
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#
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# This script slaves a 2nd turnout to a first one, so that when the
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# first one is commanded to a particular state, the second one
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# goes to the other state
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#
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# To use this, edit the script to include your turnouts at the bottom
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# (see the existing example; you should remove that)
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# Then select it as a script to be run at startup from the "Advanced
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# Preferences" on the preferences window
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#
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# Author: Bob Jacobsen, copyright 2005
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# Part of the JMRI distribution
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#
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import jmri
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import java
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import java.beans
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# First, define the listener that does everything
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class MainTurnoutListener(java.beans.PropertyChangeListener):
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def propertyChange(self, event):
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if (self.master.state == CLOSED) :
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self.slave.state = THROWN
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elif (self.master.state == THROWN) :
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self.slave.state = CLOSED
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# Define a routine to make it easy to attach listeners
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def SetTwoOutputTurnout(master, slave) :
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# get turnout objects
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t1 = turnouts.provideTurnout(master)
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t2 = turnouts.provideTurnout(slave)
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# initialize state
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if (t1.state == CLOSED) :
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t2.state = THROWN
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elif (t1.state == THROWN) :
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t2.state = CLOSED
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# connect up listener for future changes
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listener = MainTurnoutListener()
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listener.master = t1
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listener.slave = t2
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t1.addPropertyChangeListener(listener)
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# Attach listeners to the desired the turnouts
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# In this sample, there are two pairs; replace with your own lines
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SetTwoOutputTurnout("CT13", "CT14")
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SetTwoOutputTurnout("CT15", "CT16")
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