Within the project structure, identifier blocks have particular classification levels that allow a structure identifier to be divided into main and sub-identifiers. The sub-identifiers form a hierarchy with the corresponding main identifier. A sub-identifier is always assigned to a main identifier. Depending on the identifier block, different numbers of sub-identifiers can be used in EPLAN. Main and sub-identifiers are separated from each other by particular characters. The separators that may be used depend on the particular identifier block.
Classification of identifier blocks
|
Main identifier
|
Sub-identifier |
|
|---|---|---|
|
Functional assignment |
Classification level 1 |
Classification level 2 |
|
Identifies the functional relationship between higher-level functions, technical facilities, and devices. |
Plants, plant sections, part sections, technical facilities, and devices |
Master function and functional units |
|
Main identifier
|
Sub-identifier |
||
|---|---|---|---|
|
Higher-level function |
Classification level 1 |
Classification level 2 |
Classification level 3 |
|
Identifies higher-level functions, plant sections, and technical facilities |
Plants, plant sections, and part sections |
Technical facilities and devices |
Further subgroupings |
|
Main identifier
|
Sub-identifier |
|
|---|---|---|
|
Installation site |
Classification level 1 |
Classification level 2 |
|
Identifies topographical installation sites |
Building, hallway, floor, stage, etc. |
Rooms and areas |
|
Main identifier
|
Sub-identifier |
||||
|---|---|---|---|---|---|
|
Mounting location |
Classification level 1 |
Classification level 2 |
Classification level 3 |
Classification level 4 |
Classification level 5 |
|
Identifies the mounting location of devices |
Construction units, panels, tables, enclosures, power units, etc. |
Mounting location within the construction unit |
Further Subclassification |
Further Subclassification |
Further Subclassification |
|
Main identifier
|
|---|
|
Higher-level function number (user-defined prefix) |
|
Identifies the mounting location of devices |
|
Main identifier
|
Sub-identifier |
|---|---|
|
Device |
Classification level 1 |
|
Identifies the device |
Device |
|
Main identifier
|
Sub-identifier |
||
|---|---|---|---|
|
Document type |
Classification level 1 |
Classification level 2 |
Classification level 3 |
|
Identifies document types to distinguish them by the information content |
Document type, e.g. schematic, system schematic, terminal diagram, table of contents |
Requirements for the technical realization, for example transfer via bus, fixed wiring. |
Further Subclassification |
|
Main identifier
|
Sub-identifier |
|---|---|
|
User-defined |
Classification level 1 |
|
User-defined identifier block |
Further Subclassification |
Separators for defining sub-identifiers in identifier blocks
|
Identifier block |
Separator for sub-identifiers |
|---|---|
|
Functional assignment |
== |
|
Higher-level function |
= |
|
Installation site |
++ |
|
Mounting location |
+ |
|
User-defined |
User-defined (default #) |
Example:Classification possibilities of the "Functional assignment" identifier block:
Two main identifiers, two sub-identifiers at the first classification level, and a sub-identifier at the second classification level are used.
MI1 => First main identifier
MI2 => Second main identifier
SI1 => First sub-identifier at Classification level 1
SI2 => Second sub-identifier at Classification level 1
SSI => Sub-identifier at Classification level 2
The first sub-identifier (SI1) at classification level 1 and the second sub-identifier (SI2) at classification level 2 are separated from the main identifier (MI1) by a full-stop. The further sub-identifier (SSI) at classification level 2 is separated from the main identifier (MI) by two full-stops.
(==)MI1.SI1
(==)MI1.SI2.SSI
(==)MI2
If the classification identifier (full-stop ".") is used, then sections at the beginning or end of an identifier block do not need to be present.
See also: