CompoundBlock Element/en - Versionsgeschichte

Matilk: /* Diagram Elements */

2024-07-16T11:51:10Z

Diagram Elements

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	== Diagram Elements ==		== Diagram Elements ==
	Diagram elements are the elements in an activity diagram. They define the behavior of the [[Compound Block\|compound action block]] and are manipulated in the [[~~Network Editor~~/en\|network editor]].		Diagram elements are the elements in an activity diagram. They define the behavior of the [[Compound Block\|compound action block]] and are manipulated in the [[Compound_Network_Editor/en\|network editor]].

	== Introductory Activity Diagram Example ==		== Introductory Activity Diagram Example ==

Matilk: /* Introduction */

2024-07-16T10:56:23Z

Introduction

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	* Control flows are defined as "''action finished''" information being used to trigger another step's action. These flows are defined by interconnections from a step's [[DiagramElements-Pin#Enable_Output_Pin\|''Trigger Output Pin'']] to another step's [[DiagramElements-Pin#Enable_Input_Pin\|''Trigger Input Pin'']].<br>(these are also occasionally called "''Enable Output Pin''" and "''Enable Input Pin''" in this documentation).		* Control flows are defined as "''action finished''" information being used to trigger another step's action. These flows are defined by interconnections from a step's [[DiagramElements-Pin#Enable_Output_Pin\|''Trigger Output Pin'']] to another step's [[DiagramElements-Pin#Enable_Input_Pin\|''Trigger Input Pin'']].<br>(these are also occasionally called "''Enable Output Pin''" and "''Enable Input Pin''" in this documentation).

			Both can trigger the execution of a subsequent step.

	== Diagram Elements ==		== Diagram Elements ==

Cg: /* Relationship to Petri Nets */

2023-07-20T13:16:37Z

Relationship to Petri Nets

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	=== Relationship to Petri Nets ===		=== Relationship to Petri Nets ===
	A Petri Net [[http://en.wikipedia.org/wiki/Petri%20net (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.		A Petri Net [http://en.wikipedia.org/wiki/Petri%20net (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.

	Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).		Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).

Cg: /* Relationship to Petri Nets */

2023-07-20T13:16:20Z

Relationship to Petri Nets

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	=== Relationship to Petri Nets ===		=== Relationship to Petri Nets ===
	A Petri Net [[http://en.wikipedia.org/wiki/Petri%20net\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.		A Petri Net [[http://en.wikipedia.org/wiki/Petri%20net (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.

	Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).		Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).

Cg: /* Relationship to Petri Nets */

2023-07-20T13:15:57Z

Relationship to Petri Nets

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	=== Relationship to Petri Nets ===		=== Relationship to Petri Nets ===
	A Petri Net [http://en.wikipedia.org/wiki/Petri ~~net~~\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.		A Petri Net [[http://en.wikipedia.org/wiki/Petri%20net\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.

	Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).		Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).

Cg: /* Relationship to Petri Nets */

2023-07-20T13:10:01Z

Relationship to Petri Nets

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	=== Relationship to Petri Nets ===		=== Relationship to Petri Nets ===
	A Petri Net [http://en.wikipedia.org/wiki/~~Petri_net~~\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.		A Petri Net [http://en.wikipedia.org/wiki/Petri net\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.

	Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).		Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).

Cg: /* Relationship to Petri Nets */

2023-07-20T13:09:29Z

Relationship to Petri Nets

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	An expecco step with multiple input pins corresponds to a Petri Net transition with multiple inputs followed by a Petri Net action. Similar to transitions in a Petri Net, the input side of a step can be configured to require either any input or all input values to be present. In expecco, this is called the step's "''trigger condition''" and described in detail in the [[DiagramElements-Step\|step documentation]].		An expecco step with multiple input pins corresponds to a Petri Net transition with multiple inputs followed by a Petri Net action. Similar to transitions in a Petri Net, the input side of a step can be configured to require either any input or all input values to be present. In expecco, this is called the step's "''trigger condition''" and described in detail in the [[DiagramElements-Step\|step documentation]].

	"''Higher order Petri Nets''" are Petri Nets containing other Petri Nets as places, which is exactly what a compound block is in expecco.		"''Higher order Petri Nets''" are Petri Nets containing other Petri Nets as places, which is exactly what a compound block is in expecco.<br>
	"''Coloured Petri Nets''" are Petri Nets where not simple anonymous tokens are passed around, but data objects (or references to them, as in expecco).		"''Coloured Petri Nets''" are Petri Nets where not simple anonymous tokens are passed around, but data objects (or references to them, as in expecco).

	Thus, in standard Petri Net notation, expecco's diagrams are therefore "''~~higher~~ ~~ordered~~ ~~colored~~ Petri Nets''".		Thus, in standard Petri Net notation, expecco's diagrams are therefore "''Higher Order Colored Petri Nets''".

	=== Relationship to UML Activity Diagrams ===		=== Relationship to UML Activity Diagrams ===

Cg: /* Relationship to Petri Nets */

2023-07-20T13:08:37Z

Relationship to Petri Nets

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	=== Relationship to Petri Nets ===		=== Relationship to Petri Nets ===
	A Petri Net [http://en.wikipedia.org/wiki/Petri_net\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side. Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).		A Petri Net [http://en.wikipedia.org/wiki/Petri_net\| (see Wikipedia)] is a network consisting of places (with possible action processing) and transitions. In a classical petri net, anonymous tokens travel along connections and transitions control the firing (triggering) of following action steps depending on the arrival of tokens at their input side, and passing tokens to their output side.

			Expecco has combined the transition and place functionality into a single step item, in order to make the graphical representation more dense (and also for its similarity with UML-2 activity diagrams and other flow based diagrams). However, semantically, they behave the same, and any diagram could be rewritten by using separate items (collecting inputs and passing a tuple of tokens on to the place).

	[[Datei:Beispiel.png]]		[[Datei:Beispiel.png]]

Cg: /* See Also */

2021-12-06T09:51:39Z

Cg: /* Relationship to IEC1131 Function Block Diagrams */

2021-06-30T17:51:33Z

Relationship to IEC1131 Function Block Diagrams

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	=== Relationship to IEC1131 Function Block Diagrams ===		=== Relationship to IEC1131 Function Block Diagrams ===
	Expecco's compound action block execution model has many similarities with [https://en.wikipedia.org/wiki/IEC_61131 IEC-61131-3] (also IEC-1131-3 or EN 61131-3) [https://en.wikipedia.org/wiki/Function_block_diagram \| Function Block Diagrams]		Expecco's compound action block execution model has many similarities with [https://en.wikipedia.org/wiki/IEC_61131 IEC-61131-3] (also IEC-1131-3 or EN 61131-3) [https://en.wikipedia.org/wiki/Function_block_diagram Function Block Diagrams]
	which is a wellknown standard in programmable logic controller programming.		which is a wellknown standard in programmable logic controller programming.

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	== See Also ==		== See Also ==
	[[Tree Elements \| Tree Elements]]		[[Tree Elements \| Tree Elements]]

			[[Block Element]], [[DiagramElements-Step/en\|Step]], [[DiagramElements-Connection\|Connection]],
			[[ElementaryBlock_Element\|Elementary Action]],

			Back to [[Online Documentation#Tree Elements\|Online Documentation]].

	[[Category: Tree Elements]]		[[Category: Tree Elements]]