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| Automatic Block Signal Circuit Board (global view) |
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| Automatic Block Signal Circuit Board (detail of components) |
CONNECTORS:
C = current block signal statusE = following block signal status (exit track)
S = train holding status
P = incoming train pedal
WIRING:
The two points marked with (1) are connected with a framed wire bridge (not present on the circuit's detail image).CONNECTION SCHEME:
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| Automatic Block Signal Circuit Board connection scheme |
Wire connector C (red) to the block signal of the current section and connector E (blue) to the block signal of the following section.
Wire connector P (purple) to the locomotive detector at the beginning of the current section.
Wire connector S (orange) to the holding track at the end of the current section.
Basically the circuit board keeps the holding track OPEN when both current and next section's signals are on RED status.
This works up to when another train enters the current section while the previous train is still on the next one. Putting current section's signal to RED status it will cause the holding track to go back to OPEN.
But when the entering train passes over the locomotive detector track (pedal, connector P on the board), the circuit will CLOSE back the holding track.
And it will remain CLOSE even after the detector track is released, until the next section's signal turns to GREEN status. This brings us to the initial status.
Naturally once the pedal has been pushed and the holding track has been set to CLOSE, if the next section's signal status turns to GREEN the holding track will go back to OPEN letting the train pass to the next section.
To avoid trains collision the Automatic Block Signal Circuit Board must be installed on every section of the railroad line.
Wire connector P (purple) to the locomotive detector at the beginning of the current section.
Wire connector S (orange) to the holding track at the end of the current section.
CONFIGURATION:
Put RailCraft's signal blocks in emit on RED and YELLOW mode.HOW IT WORKS:
A convoy moves from the current section to the next, which is completely free (signal is on GREEN).
When it enters the following section, having both current and next section's signals to RED status, the holding track remains OPEN. This allows the entire convoy to freely exit the section (the holding tracks stops the pulled locomotives of Traincraft).
Once the last cart has left the current section, meaning that the entire convoy is on the next track, the holding track changes to CLOSED status and it will stop the next incoming train.
Basically the circuit board keeps the holding track OPEN when both current and next section's signals are on RED status.
This works up to when another train enters the current section while the previous train is still on the next one. Putting current section's signal to RED status it will cause the holding track to go back to OPEN.
But when the entering train passes over the locomotive detector track (pedal, connector P on the board), the circuit will CLOSE back the holding track.
And it will remain CLOSE even after the detector track is released, until the next section's signal turns to GREEN status. This brings us to the initial status.
Naturally once the pedal has been pushed and the holding track has been set to CLOSE, if the next section's signal status turns to GREEN the holding track will go back to OPEN letting the train pass to the next section.
To avoid trains collision the Automatic Block Signal Circuit Board must be installed on every section of the railroad line.
NOTE:
Mind the insulator on the left side of the RS-Latch and the ones in front of the AND-Gate and the NOT-Gate.DEPENDENCIES:
ProjectRedForge Microblocks
TESTED VERSIONS:
Minecraft 1.6.4Minecraft Forge 9.11.1.965
Railcraft 8.3.2.0
Traincraft 4.1.4_024
ProjectRed 4.2.2.19
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