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.

Free blocks

A comma separated list of blocks. One of the blocks must be free to be able to reserve the blockgroup.


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

Common Buttons



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

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