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Ghost Block (v5.11.4) and Turnouts Question


 

I am converting all my turnout blocks from LogixNG to Ghost blocks since I was essentially doing the same thing for all the turnouts. However, I have this one short section with a single curve between two turnouts. Docs say "There must be at least one real block between ghost blocks".
?
Is that really the only way? Or should I accept it and add two insulators and three feeders into the single section of track?


 

How short is "short"? ?Is it long enough to hold a train without fouling a turnout? ?Do you need signals to protect each turnout?

Maybe both turnouts and the connecting track segment should be one block with signals protecting entry to the block?

Dave Sand



----- Original message -----
From: stevemac <steveo@...>
Subject: [jmriusers] Ghost Block (v5.11.4) and Turnouts Question
Date: Saturday, March 22, 2025 12:00 PM


I am converting all my turnout blocks from LogixNG to Ghost blocks since I was essentially doing the same thing for all the turnouts. However, I have this one short section with a single curve between two turnouts. Docs say "There must be at least one real block between ghost blocks".
?
Is that really the only way? Or should I accept it and add two insulators and three feeders into the single section of track?


 

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Why not make both switches and the track between them a single ghost block and the only block in a section

Tony



On Mar 22, 2025, at 1:01?PM, stevemac <steveo@...> wrote:

?
<T5T6.jpg>
I am converting all my turnout blocks from LogixNG to Ghost blocks since I was essentially doing the same thing for all the turnouts. However, I have this one short section with a single curve between two turnouts. Docs say "There must be at least one real block between ghost blocks".
?
Is that really the only way? Or should I accept it and add two insulators and three feeders into the single section of track?


 

Dave Sand <How short is "short"?>
Less than 9 inches. Train wouldn't disappear.
?
Tony & Dave <both switches and the track between them a single ghost block>
That's my current with LogixNG which looks at all connected and sets internal sensor. I'm new to this and don't yet have resistor wheels but it's planned for at least head and tail. I have issues with knowing when to go inactive since the next block on either side is a long one. The logic is not practical. This conversation has made me realize making that a short block would enhance the signaling reliability. (Still have a lot to learn.)


 

Tony's got a point.
You essentially have a gauntlet track where only one train at a time can occupy the space between turnout pairs.
Sure you don't have the traditional gauntlet structure but you have the operation.
So, I would signal each approach leg and either:
  1. set the turnouts and track as one ghost block or
  2. detect the turnouts and track as one detection block
Either way will operate correctly.
--
Ken
NYNH&H, Old Colony Division, Cape Cod Branch (1949-1959)
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