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When using class CNS_CP|4|3 and especially the values from attribute Connection EclassSymbolMap, symbols of individual functional groups can already be fully specified according to the IEC schema (see http://wiki.eclass.eu/wiki/CAx_Funktionssymbole).
The graphical symbol representation shown in this example applies for cases where the predefined IEC symbols are not sufficient or shall be fine-tuned/customized. Here, a complete custom symbol with the name "pcx_ps_002" is defined.
In order to link electrical connections with DXF symbols different steps are required.
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In class CNS_CP|4|3, the attribute Connection EclassSymbolMap has to be defined.
In this example, 8 electrical connections of ONE function are classified by CNS_CP|4|3, meaning in Connection EclassSymbolMap (00001E001) the definition of 8 pins is found.
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Link between physical connection and symbol connection
In order to establish a link between physical connection and corresponding symbol connection, the values of the class CNS_CP|4|3, attribute Connection EclassSymbolMap have to be identical with the ones of class CNSCAX|GFX|1, attribute Function Identifier (CNS_FUNC_IDENT)
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Link between symbol connector and symbol representation
In a further step, a link between Symbol connector (CNSCAX|GFX|1) and Symbol representation (CNSCAX|GFX|SYMREP) has to be created, namely by the value of attribute Parent CLS_ID INST_ID. The last value of the string is the corresponding instance of CNSCAX|GFX|SYMREP.
Class "CNSCAX|GFX|1" with attribute "Parent CLS_ID INST_ID" and value "CNSCAX|GFX|SYMREP||<Instance>"
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In CNSCAX|GFX|SYMREP the attribute CNS_DOC_CNSURI refers to the identifier stated in PARTproject -> tabbed page General -> menu item General under Additional export formats -> dialog -> column ID (compare above), whereby the following syntax has to be used:
ADDFILE://ID
In CNSCAX|GFX|SYMREP, the attribute CNS_DOC_NAME refers to the file name of the DXF file.
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The class CNSCAX|GFX|2 contains the attributes of text blocks.
The basic difference between Symbol connector CNSCAX|GFX|1 and Text block CNSCAX|GFX|2 is the attribute Function Identifier (CNS_FUNC_IDENT), which links the symbol connector with the IEC symbols in CNS_CP|4|3. As text blocks do not have an internal structure, where the sequence would be important, here, the attribute Function Identifier is not required. The link to the corresponding symbol by CNSCAX|GFX|SYMREP||<Instance name> is sufficient.
