User Tools

Site Tools



ContentObjectsCitical Sections & Block Groups

Conditions can be helpful to avoid dead locks after the block group.

Blockgroups Dialog Conditions Tab.

First block

The first enter block from the block group.
If the block group only has one block the block side can be used.

Free blocks

A comma separated list of blocks. One of the blocks must be free to be able to reserve the blockgroup.
Note: A block is only regarded as free if the train in question is allowed to enter this block.


Reserving blocks in this way is regarded as a user intervention in the automatic mode; Therefore it's not recommended.

The first free block of this list will be reserved.
This is almost the same as a goto block command; Route permissions are ignored.


The free blocks must be part of the loco schedule.



In this terminal station example there will be a dead lock in case at the end of the block group no block is free.
Use block group conditions to avoid this:

From block Free blocks Reserve
b3 b5,b6 Lock
b4 b1,b2 Lock

Due to new functionality this can now be accomplished with one block, with the differentiation between the +side and the -side of the block.

From block Free blocks Reserve
+b3 b5,b6 Lock
-b3 b1,b2 Lock
blockgroups-cond-en.txt · Last modified: 2020/11/25 12:47 by smitt48