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Adding/Editing Signal Mast Logics

The first thing you must do when creating a Signal Mast logic is to select the source followed by the destination Signal masts. The source signal mast is one which you wish to control at set the appearances on. The destination signal mast is the next signal mast down the line, the appearance of the destination mast along with the state of the turnouts and blocks will have a direct effect on the appearance of the source signal mast.
If you are not using the Layout Editor, then NO validation is performed of the source and destination mast. If the layout editor is being used, then the system will try and determine if the destination mast is reachable from the source mast.

In Edit Mode Only The maximum permissable path speed between the two signalmast is displayed, this is determined by the speeds configured against the blocks and turnout.

The check box "Use Layout Editor Paths" allows you to get the system to automatically generate the required blocks, turnout and signal masts along with their states that are located between the source and destination signal masts.
On selecting "Using Layout Editor Paths", two further check boxs will appear, "Use Turnout Details From Layout Editor" and "Use Block Details From Layout Editor" Selecting either of these will determine what information from the layout editor is used when the system automatically generates the route.
The automatically generated information is not saved with the panel file, this information is generated each time the layout panel is opened.
If the information on the layout editor panel is edited, the change is not reflected in the SignalMast Logic, you will need to store the panel, close JMRI and re-open the panel for the Logic to be updated.

The "Allow The Logic to Automatically Determine Conflicting SignalMast" option tries to determine which signals could possibly cause a conflicting route if they were not set to danger.

The "Lock Turnouts when Signal Mast Logic is Active" feature allows you to selectively disable accessory (turnouts) commands from cabs and/or locally-wired pushbuttons. JMRI disables pushbuttons by sending pushbutton disable commands to the turnout decoders when the route is locked, and enables the pushbuttons when the route is unlocked. When locking a turnout from cab commands, the JMRI program will monitor the turnout's accessory address and if it detects a change command from a cab, will cancel the command immediately by sending out the opposite command to the turnout. All turnouts that are being monitored by the JMRI program and are included in the route will be locked.

The radio button below the "Lock Turnout when Signal Mast Logic is Active" allows you to show only the turnouts, sensors, blocks or signal masts that are part of this signal mast logic.

There four tabs below the "Show" button, each contains the details of Blocks, turnouts, sensors and signalmasts that make up the Signalmast logic. In each of these tab, there is an editable table that allows you to manually select which item should be included in the Signal Mast logic and the state which this item should be in.
Below that is a further table that shows the automatically generated items (except in the sensor tab). Manually entered items over-ride the automatically generated items, therefore if you wish to over-ride any item in automatically generated list then in the manual table select the corresponding item and set the state. Click the "Include" box in any of the tables to add the desired item to your signalmast logic. Next to the "Include" box is the state option which that item must be in for the Signal Mast to come active. For example, if you wish the turnout to be in a thrown state to trigger the logic, then select "Thrown" in the drop down box. If you wish to over-ride a turnout that has automatically included, and you don't care what state it is set to, select "Any State" from the drop down box.

Update Signal Mast Logic

This will add or update your Signal Mast Logic to the system, once added, the tables holding the automatic generated data will then be re-populated.