Layer Naming Common to AutoCAD and Microstation

Layer Naming Convention

A
Agent Responsible		 213_
Element		 X
User definable
Layer FieldCharactersRecommended Character Codes
Agent responsible
 2 (alphanumeric)
A_
B_
C_
D_
E_
H_
M_
S_
T_
W_		 =
=
=
=
=
=
=
=
=
=		 ArchSD AB
ArchSD BSB
CED
DSD
EMSD
HyD
TDD
ArchSD SB
TD
WSD

Consultants, Contractors, Suppliers to be assigned unique 2 character names.
Element
 4 (numeric) Based on the CSWD Element Coding Tables.
User Definable
 1 (alphanumeric) User definable alphanumeric character.

Note: Underscore characters should be used to represent empty/unused characters

 Layer Naming table
Layer AssignmentAutoCADMicrostation
  AutoCAD layer assignment will follow the common convention of creating the relevant layers as and when they are required in accordance with the CSWD.No more than 63 layer names should be used per file (until this restriction in Microstation is removed in future versions) Microstation levels shall be assigned layer names using the CSWD layer naming convention. 

Each layer name should be assigned to a separate level number e.g.
 

Level 1
Level 2
Level 3		 A_2111M
A_2112M
A_213_M

The CSWD will not utilise the level number assignment function. If users have a level assignment system in place then this can be maintained.

If not, then it is recommended that layers are assigned numbers in the order in which they are created e.g.
 

Level 1
Level 2
Level 3		 First layer created
Second layer created
Third layer created

       No more than 63 layer names should be used per file.

Layer Assignment table