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Structure identifier management in EPLAN Electric P8

The management of structure identifiers in EPLAN Electric P8 (for example, "Higher-level function" [preceding sign "="] and "Mounting location" [preceding sign "+"]) affects two important areas of the electro-technical documentation, which may also operate independently of each other.

  1. The order of schematic pages in a project.
  2. The order of the schematic objects (devices, terminals, plugs, cables, etc.) in a project.

Both the schematic pages and schematic objects can contain structure identifiers independently of each other. Thus, it is possible to find structure identifiers in a schematic object for which there is no schematic page.

If a new schematic page or new schematic object is created in EPLAN Electric P8 (regardless of whether directly or via EEC), all new structure identifiers will be entered in the central structure identifier management. In the process, only new structure identifiers are created, and always, by default, added to the end of the list.

The management of structure identifiers in EPLAN Electric P8 is opened via Project data > Structure identifier management...

The following table shows an example of structure identifier management (tab List):

Row Complete structure identifier Structure description Original description Usage Status
1 <Empty identifier> <Empty identifier> ?
2 B No
3 A No
4 CA No
5 CA1 No

The order of the entries in structure identifier management is the determining order both for the schematic pages and also for all other schematic objects where structure identifiers play a role.

Previously, structure identifiers could be moved from within EEC only via the schematic pages in EPLAN Electric P8. As such, the structure identifiers were entered in the EPLAN Electric P8 structure identifier management in accordance with the order of creation (the order of the schematic pages in the ECAD structure of EEC project) of the wiring diagram pages in EEC.

image/svg+xml ECAD WiringDiagram Page2 Page1 Mechatronic EEC. ECAD WiringDiagram Page1 Page2 Mechatronic EEC. Plant1 Location1 1 Page 1 P8 =Plant2+Location2/1 Plant2 Location2 1 Page 2 WiringDiagram Plant2 Location2 1 Page 2 P8 Plant1 Location1 1 Page 1 WiringDiagram =Plant1+Location1/1 =Plant2+Location2/1 =Plant1+Location1/1

In many cases, it is necessary for the identifier structure to have a different order in EPLAN Electric P8 than that created by default via the creation of schematic pages from EEC. Therefore, the structure identifiers need to be manipulated independently of the creation of schematic pages and / or schematic objects.

Generally, there are two ways of manipulating structure identifiers:

  1. Before the schematic pages and / or schematic objects in a schematic are created.

The structure identifiers (their order and any descriptions) are created first in an empty project. All wiring schematic pages / schematic objects that are created in the schematic afterwards (and that contain existing structure identifiers) are sorted according to this order.

  1. After the schematic pages and / or schematic objects in a schematic are created.

Here, the order, and any description of the structure identifiers in a schematic with existing pages and objects is specified.

Note:

Generally any structure identifiers can be assigned to the devices in EEC.

Note:

Depending on the number of pages and objects in the schematic, this can take up a longer period of time!

Changing the order of the structure identifiers before the schematic pages / schematic objects are created:

To change this order of the structure identifiers from within EEC, a model variable of the same name is available for each structure identifier:

Parameter Default name of the parameter
Parameter Name For Equipment List SKAnlage
Parameter Name For Equipment Number List SKAnlagennummer
Parameter Name For Installation Site List SKAufstellungsort
Parameter Name For User Defined Structure List SKBenutzerdefiniert
Parameter Name For Document Type List SKDokumentenart
Parameter Name For Location List SKEinbauort
Parameter Name For Functional Assignment List SKFunktionaleZuordnung

The output value is a list that consists either only of designations or pairs that are composed of a designation and a description.

If the generation process adds further structure identifiers, they will be added to the existing ones in EPLAN Electric P8. If there an order already exists for a structure identifier in structure identifier management, EEC will try to merge the two lists.

For example, if the order is already defined in the project template as ‘B’, ‘C’, and EEC requests ‘A’, ‘C’, these elements do not contradict each other in terms of the order, and after the generation process, this produces either the list with ‘A’, ‘B’, ‘C’ or ‘B’, ‘A’, ‘C’, because the order between ‘A’ and ‘B’ has not been defined.

See also: