The numbering format is composed of the following format elements:
- Identifier
- Page
- Column
- Row
- Counter
- Separator.
To ensure that you receive a valid numbering result, the following rules apply to the numbering format and the format elements:
- The numbering format must always include an identifier.
- No format element may include a point (except for the separator). The period defines a subordinate level.
Elements of the online numbering format
Preceding sign
|
DT |
Description |
|---|---|
|
-M3 |
DT with preceding sign |
|
M3 |
DT without preceding sign |
The preceding sign (dash, hyphen) only appears in the DT if the Set preceding sign setting is activated for the device type.
Identifier
The identifier denotes a device category. It is taken automatically from the assignment table for the selected identifier class. The identifier is standard-dependent.
|
Category |
Group |
Function definition |
Identifier |
||||
|---|---|---|---|---|---|---|---|
|
IEC |
IEC 61346 |
IEC 81346 |
NFPA |
User-defined |
|||
|
Motor |
Motor with PE, 4 connection points |
Three-phase motor |
M |
M |
M |
MTR |
M |
|
PLC connection point |
PLC connection point, power supply, 1 connection point |
Network / bus cable connection point, output |
A |
K |
K |
PLC |
K |
|
Containers |
Containers |
Containers |
B |
C |
C |
U |
B |
The identifier normally consists of one or more letters. In the DT, the identifier must appear before the counter.
Example:The table below gives examples of the identifier in the DT.
|
DT |
Description |
|---|---|
|
-M3 |
Identifier M after a preceding sign. |
|
-MTR2 |
Identifier MTR with more than one letter. |
|
-2MTR3 |
The first letter M in the identifier MTR appears after a number (here, page 2). |
|
-2MTR3 |
The last letter R in the identifier MTR appears before a number (here, counter 3). |
Page
The page in the DT denotes the page name of the schematic page where the device is placed. If the DT contains a counter, the page must appear before the counter. If the page appears after an identifier and before a counter, then the minimum number of digits for the page must be specified.
The table below gives examples of the page name in the DT.
|
DT |
Description |
|---|---|
|
2M3 |
Page with page name 2 before the identifier M. |
|
-2M3 |
Page with page name 2 after a preceding sign and before the identifier M. |
|
MTR23 |
Page with page name 2 after the last letter R of the identifier MTR and before the counter 3. |
|
M0023 |
Page 002 with page name 2, minimum number of loops 3 and filler characters 0. The page appears after the identifier M and before the counter 3. |
Column
The column denotes the column designation for the column where the device is located. The column is either the path or the schematic position, depending on the spatial position / rotation of the schematic page. If the column designation appears after an identifier and before a counter, then the minimum number of digits for the column designation must be specified.
The table below gives examples of the column designation in the DT.
|
DT |
Description |
|---|---|
|
-2M4 |
Column with column designation 4 appears after the identifier M. |
|
M0025 |
Column with column designation 5 appears after page 002. |
|
-M052 |
Column 05 with column designation 5, minimum number of positions 2 and filler characters 0. The column appears after the identifier M and before the counter 2. |
Row
The row denotes the row designation for the row where the device is located. The row is either the path or the schematic position, depending on the spatial position / rotation of the schematic page. If the row designation appears after an identifier and before a counter, then the minimum number of digits for the row designation must be specified.
Counter
Counters normally consist of numbers. But they may contain letter elements.
If the numbering format contains a counter, then the counter must be at the end of the format. EPLAN can use this to determine an existing counter when numbering.
Separators
Separators are used to separate format elements from each other. Each separator can consist of any combination of characters (numbers, letters and special characters), or also of blanks. Separators can be inserted only behind the identifier and in front of the counter.
If you use as separators a point, minus sign, or a preceding sign of structure identifiers, then round brackets will be inserted automatically around the format component between the identifier and counter. The display of brackets can be switched on or off using the Hide brackets in DT check box (Options > Settings > Projects > "Project name" > Devices > DT).
See also
Specifying Online Numbering Format
Setting Prefixes in Displayed DT