Parallel Strings

With parallel branches, switching a single transition leads to a parallel activation of more than one (maximum 32) steps (branches). This applies with Single-Token as well as with Multi-Token

If...	Then
If `S_5_10` is active and transition condition `a`, which belongs to the common transition, is also true,	then a sequence runs from `S_5_10` to `S_5_11`, `S_5_12` and `S_5_13`.
If steps `S_5_11`, `S_5_12` and `S_5_13` are activated,	then the strings run independently of one another.
If `S_5_14`, `S_5_15` and `S_5_16` are active at the same time and transition condition `e`, which belongs to the common transition, is true,	then a sequence is run from `S_5_14`, `S_5_15` and `S_5_16` to `S_5_17`.

Terminating a Parallel Branch with an Alternative Merge

Terminating a parallel branch can also be done with an alternative merge instead of a parallel merge with Multi-Token.

If...		Then
If the transition condition `a` is true,		then a sequence runs to `S_5_1` and `S_5_2`.
If steps `S_5_1` and `S_5_2` are activated,		then the strings run independently of one another.
If transition condition `b` is true and `c` is false,		then a sequence runs to `S_5_3`.
A second token is created by the sequence running on the alternative merge out of the parallel string. The two tokens are running parallel to one another, i.e. `S_5_2` and `S_5_3` are active at the same time.
Token 1 (S_5_3)		Token 2 (S_5_2)
If...	Then	If...	Then
Step `S_5_3` is active.		Step `S_5_2` is active.
		If the transition condition `c` is true,	then a sequence runs to `S_5_3`.
If `S_5_3` is still active (token 1) then token 2 is ended and the string is further processed as Single-Token. If `S_5_3` is no longer active (token 1), then it is reactivated by token 2 and both tokens continue running parallel (Multi-Token).

If...		Then
If the transition condition `a` is true,		then a sequence runs to `S_5_1` and `S_5_2`.
A second token is created by the sequence running on the alternative merge out of the parallel string. These two tokens are now running parallel to one another, i.e. `S_5_1` and `S_5_2` are active at the same time.
Token 1 (S_5_2)		Token 2 (S_5_1)
If...	Then	If...	Then
Step `S_5_2` is active.		Step `S_5_1` is active.
		If transition condition `b` is true,	then a sequence runs to `S_5_2`.
If `S_5_2` is still active (token 1) then token 2 is ended and the string is further processed as Single-Token. If `S_5_2` is no longer active (token 1), then it is reactivated by token 2 and both tokens continue running parallel (Multi-Token).

Using an Alternative Branch in a Parallel String

If one single alternative branch is used in a parallel string, it may block the string.

If...	Then
If transition condition `a` is true,	then a sequence is run to `S_7_1` and `S_7_2`.
If steps `S_7_1` and `S_7_2` are activated,	then the strings run independently of one another.
If transition condition `d` is true,	then a sequence runs to `S_7_5`.
If transition condition `b` is true,	then a sequence runs to `S_7_3`.
Since `S_7_3`, `S_7_4` and `S_7_5` are linked by a parallel merge, the parallel string cannot be departed because `S_7_3` and `S_7_4` can never be active at the same time. (Either `S_7_3` is activated with transition condition `b` or `S_7_4` with transition condition `c`.) Therefore `S_7_3`, `S_7_4` and `S_7_5` cannot be active at the same time either. The string is blocked. This block can be removed for example, by a second timed token that runs via transition `c`.