Serge NOEL
91 lines
4.5 KiB
Python
91 lines
4.5 KiB
Python
#
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# Listener for LocoNet MULTI_SENSE_POWER Autoreverse/ShortCircuit messages from PM42's
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# that contain status (OK or SHORT) for each of the 4 channels
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#
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# When a PM42 message is received, update Internal Sensors
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# ISPM_nn1, ISPM_nn2, ISPM_nn3 and ISPM_nn4
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# representing PM42 sections 1 through 4
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# where "nn" is the address of the PM42 in hex
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#
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# The Internal Sensor state is set to ACTIVE if the PM42 reports the section
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# is set for short circuit mode and the state of the section is active.
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# The Internal Sensor state is set to INACTIVE if the PM42 reports the section
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# is set for autoreverse mode or the state of the section is ok.
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#
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# Note: Internal Sensor states are undefined until a message is received from
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# the PM42
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#
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# message parsing code patterned after lnmon.java
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#
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# Robin Becker
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# 2008 Feb
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#
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import jmri
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import java
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# set the intended LocoNet connection by its index; when you have just 1 connection index = 0
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connectionIndex = 0
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# LocoNet listener class
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# this does all the work
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#
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class PM42Listener(jmri.jmrix.loconet.LocoNetListener):
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def message(self, msg):
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# is this a power msg from a PM42?
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if ((msg.getElement(0) == 0xD0) and ((msg.getElement(1) & 0x60) == 0x60)) :
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pCmd = (msg.getElement(3) & 0xF0) # PM42 msg type
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# is this a short circuit / autoreverse message?
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if ((pCmd == 0x30) or (pCmd == 0x10)) :
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pAdr = (msg.getElement(1)& 0x1) * 128 + (msg.getElement(2)& 0x7F)+1 # PM42 address
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pAdrHex = ("0"+java.lang.Integer.toHexString(pAdr))[-2:] # make addr a 2 char string
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pAdrHex = pAdrHex.upper() # Make sure the hex character, if any, is upper case
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pSen = "ISPM_"+pAdrHex # internal sensor prefix
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#bit mapped codes: bits 0-3 correspond to PM42 sections 1-4
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mode = msg.getElement(3) # autoreverse if 1, short circuit if 0
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state = msg.getElement(4) # ACT if 1, OK if 0
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s = sensors.provideSensor(pSen+"1")
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if ((mode & 0x01) == 0 and (state & 0x01) != 0) : s.state = ACTIVE
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else : s.state = INACTIVE
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s = sensors.provideSensor(pSen+"2")
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if ((mode & 0x02) == 0 and (state & 0x02) != 0) : s.state = ACTIVE
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else : s.state = INACTIVE
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s = sensors.provideSensor(pSen+"3")
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if ((mode & 0x04) == 0 and (state & 0x04) != 0) : s.state = ACTIVE
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else : s.state = INACTIVE
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s = sensors.provideSensor(pSen+"4")
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if ((mode & 0x08) == 0 and (state & 0x08) != 0) : s.state= ACTIVE
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else : s.state = INACTIVE
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return
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# create the loconet listener
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ln = PM42Listener()
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jmri.InstanceManager.getList(jmri.jmrix.loconet.LocoNetSystemConnectionMemo).get(connectionIndex).getLnTrafficController().addLocoNetListener(0xFF,ln)
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# Start Panelpro Select Tools - Tables - Sensors - Sensor tables
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# Click Add System name. in the small window that opens enter System Name - ISPM_nn1 Where nn is
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# your pm42 board id and User name which can be a decription # of the Power District
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# E.G Yard or Power District 1, whatever helps you remember what the sensor is monitoring.
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# If you make a mistake click the delete button, you will get a warning that object is in use by at
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# least 1 item, just ignore it in this case and click Yes.
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# Now to add LEDS to your panel, Load your panel and open panel or layout editor
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# In the box next to Add Sensor enter your first sensor name ISPM_nn1
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# click the change icon button, scroll to the LED icons section. I use a small red led for unknown or
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# inconsistent state a large red led icon for active and a green led for inactive.
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# Now go to your panel and move the icon to the appropriate place on the screen. You can click on the
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# icon and it should cycle trough all the colors you selected.
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# Repeat for ISPM_nn2 through ISPM_nn4.
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# The final step is to have this scipt load every time you start your PanelPro application.
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# On PanelPro or DecoderPro Screen Select Edit - Preferences
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# Once the screen opens, click the Show Advanced Preferences box
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# Scroll down to the run scripts at startup section - Click Add Script - scroll to where your
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# scripts are stored - On windows normally c:\Program Files\JMRI\Jython\your script name here.
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# click open and your script will now appear on the preferences screen. When you restart PanelPro
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# or DecoderPro this scrpt will load with your panel.
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