Orwell St Johns

ORWELL ST JOHNS A Modern Image Layout in OO
Home Gallery Track Plan About OSJ Exhibition Details Rolling Stock Diary Wiring Links	Computer Control Entry/Exit Control Orwell-St-Johns uses PanelPro which is part of the JMRI suite of DCC applications. There were a number of reasons to go down the JMRI route. • Its open source which means if you want to change the program you can! • It has a great support community, if you need any help or advice it is all there even from those who have developed the software. • It is supported across multiple platforms (Windows, Mac, Linux). • It supports multiple DCC Systems. • It has quite powerful built in tools and external scripting support, so if the program doesn't quite do what you want out of the box, there is normally a way to get it to do so. • It is free, with free updates and free support. The Panel on Orwell-St-Johns has been done loosely based upon that used in a UK Power Signal Box. Routes are set by selecting the start and finish signal for a give route (or Entry and Exit) The system then goes and checks to ensure that there are no conflicts on the route, before setting the point work, highlighting the route on the screen and setting the signal to proceed. Depending upon how the layout is wired (with or without track occupancy sensors) will depend on how the route is cleared down. the route can either be cleared down by the signalman selecting the start and finish signal and clearing or cancelling the route. Or if track occupancy sensors are available once a certain sensor has been activated the route can then automatically be cleared down. Installation. The interlock plugin works on Version 2.6.1 and later. There are two files required to run the interlock. The first is interlock.jar, this is the main program which you will need to copy into the same directory as the jmri.jar file. The default in windows is c:\program files\jmri\ The second "interlockButton.py" is a small script file that places a button on the main Panelpro screen so that you can access the interlock table. This can be installed in JMRI\jython directory. You will then need to go into PanelPro, Edit\|Preferences and select "Advanced Preferences" from there scroll down to "Run Scripts at Start Up" and add interlockButton.py. Once reloaded you will be presented with a new button on the JMRI Panel called."Edit Interlock Details". You are now ready to start. An updated guide on how to setup and configure jmri to use the interlocking can be found here This shows some of the improvements to the front end editing and reflects some of the changes relating to how routes are setup and cleared down.<- Link now updated and working! If you have any questions or queries, then please do get in contact with us at The program is far from perfect and does require some additional work, if you have any suggestions then please do let us know. Current Version of the Interlock is 1.3 Fixes a number of small bugs relating to the clearing down of routes and the setting up of listeners on signals. If a loco can be uncoupled or coupled up on the route, the option is given during the setting up of the route, not when clearing the route down. This allows for a single clear down sensor to work without prompting the user on how to clear the route down. The option to uncouple a loco from a train is only given if there is no proceding route set up to the signal. This therefore allows you to setup a through route without being prompted to un-couple a loco. Version 1.2 Fixes a bug whereby the JMRI Route combo box isn't populated. Adjusts the quick clear sensor operation if it is configured as an Internal Sensor. Version 1.1 Fixes a bug when updating an existing interlock. Signals are only changed once the knownState of the turnouts in a route have been set

ORWELL ST JOHNS
A Modern Image Layout in OO

Computer Control
Entry/Exit Control

Orwell-St-Johns uses PanelPro which is part of the JMRI suite of DCC applications.
There were a number of reasons to go down the JMRI route.

• Its open source which means if you want to change the program you can!
• It has a great support community, if you need any help or advice it is all there even from those who have developed the software.
• It is supported across multiple platforms (Windows, Mac, Linux).
• It supports multiple DCC Systems.
• It has quite powerful built in tools and external scripting support, so if the program doesn't quite do what you want out of the box, there is normally a way to get it to do so.
• It is free, with free updates and free support.

The Panel on Orwell-St-Johns has been done loosely based upon that used in a UK Power Signal Box. Routes are set by selecting the start and finish signal for a give route (or Entry and Exit) The system then goes and checks to ensure that there are no conflicts on the route, before setting the point work, highlighting the route on the screen and setting the signal to proceed.

Depending upon how the layout is wired (with or without track occupancy sensors) will depend on how the route is cleared down. the route can either be cleared down by the signalman selecting the start and finish signal and clearing or cancelling the route. Or if track occupancy sensors are available once a certain sensor has been activated the route can then automatically be cleared down.

Installation.

The interlock plugin works on Version 2.6.1 and later.

There are two files required to run the interlock. The first is interlock.jar, this is the main program which you will need to copy into the same directory as the jmri.jar file. The default in windows is c:\program files\jmri\

The second "interlockButton.py" is a small script file that places a button on the main Panelpro screen so that you can access the interlock table. This can be installed in JMRI\jython directory. You will then need to go into PanelPro, Edit|Preferences and select "Advanced Preferences" from there scroll down to "Run Scripts at Start Up" and add interlockButton.py.

Once reloaded you will be presented with a new button on the JMRI Panel called."Edit Interlock Details". You are now ready to start.

An updated guide on how to setup and configure jmri to use the interlocking can be found here This shows some of the improvements to the front end editing and reflects some of the changes relating to how routes are setup and cleared down.<- Link now updated and working!

If you have any questions or queries, then please do get in contact with us at The program is far from perfect and does require some additional work, if you have any suggestions then please do let us know.

Current Version of the Interlock is 1.3
Fixes a number of small bugs relating to the clearing down of routes and the setting up of listeners on signals. If a loco can be uncoupled or coupled up on the route, the option is given during the setting up of the route, not when clearing the route down. This allows for a single clear down sensor to work without prompting the user on how to clear the route down. The option to uncouple a loco from a train is only given if there is no proceding route set up to the signal. This therefore allows you to setup a through route without being prompted to un-couple a loco.

Version 1.2
Fixes a bug whereby the JMRI Route combo box isn't populated. Adjusts the quick clear sensor operation if it is configured as an Internal Sensor.

Version 1.1
Fixes a bug when updating an existing interlock.
Signals are only changed once the knownState of the turnouts in a route have been set