Wire-list Editor > Wire-numbering settings > Numbering area > General orientation about numbering areas

A numbering area is the area within which you use the same number series to number your wires, for example from 1 and upwards. You therefore typically have unique wire-numbers within the numbering area, while equal wire-numbers may exist in other numbering areas.

The numbering areas are typically related to the plant structure. In other words, they are related to how the item designations are organised. The perhaps most common way, is to have the numbering area correspond to the location designation.

When using location designations in multiple levels, you must consider at which level the numbering areas split. If, for example the last level of the location designation specifies the position within the cabinet, you might want to omit that part of the location designation, and let the cabinet as a whole constitute a numbering area.

Example:

+R1+C1+A

•The first level (+R1) is the room where the device is placed

•The second level (+C1) is a cabinet

•The third and final level (+A) is a location within the cabinet, for example a specific mounting plate, or even a specific mounting rail

To include the room and the cabinet but exclude the position within the cabinet in the definition of numbering area, you could base the numbering area on the first two levels of the location designation. You would then have a separate numbering area for +R1+C1 in this example.

Another important question to answer is if the location designations are unambiguous or not. Is for example +S1 unique, or may there be multiple +S1's, for example in different functions? Is =A1+S1 another cabinet than =A2+S1, to take a simple example. If the answer to the latter question is "yes", you must of course include the function designation in the definition of your numbering areas.

You can base your numbering areas on one or many of the following four designation parts:

•Function (plant)

•Location

•Product

•Complete item designation

For each one of these, you can decide if it should be included or not, and if so, to which level.

The complete item designation may be a mix of several aspects, like for instance function and product. When we talk about levels in that context, the level number is counted regardless of which aspect we are talking about.

Example:

=A1=B5+C1+A-K1

First level: =A1

Second level: =A1=B5

Third level: =A1=B5+C1

Fourth level: =A1=B5+C1+A

Example:

Let us assume that we have a large function oriented plant structure, where cabinets in principle may be placed anywhere in that structure, at any level. Multiple cabinets may occur with the the same function designation. A sub-level within the cabinet is defined, to differ for example between the door, the walls and the backplane. The latter should not be included in the definition of the numbering area, while the other parts should.

To achieve this, you should have the following settings:

Function (plant): 0 - All levels

Location: 1 - The first level only

Product: Not included

Complete item designation: Not included