Components - General
Schematic components such as relays, switches, pilot lights, and discrete motor
control devices (but not PLC I/O symbols) follow this naming convention:
■
32-character block name maximum, first character is either "H" or "V" for
horizontal or vertical wire insertion.
■
The next two characters are reserved for family type (for example, PB for
push buttons, CR for control relays, LS for limit switches). A zero (0) as the
second character of the family type (for example, a 0 in the overall symbol
name) means that the symbol does not trigger a wire number change
through it (for example, T0 for terminals, W0 for cable markers, C0 for
connectors).
■
The fourth character is generally a 1 or a 2: 2 for child contacts and 1 for
everything else (parent or standalone component).
■
If the symbol is a contact, then the 5th character is a 1 for normally open,
2 for normally closed.
■
The remaining characters are not specified. They are used to keep names
unique.
Examples:
Control relay coil, horizontal rung insertion
HCR1.dwg
Control relay coil, vertical rung insertion
VCR1.dwg
Horizontal relay contact, N.O.
HCR21.dwg
Horizontal relay contact, N.C.
HCR22.dwg
Horizontal relay contact, N.C., with in-line terminal numbers
HCR22T.dwg
Vertical push button, parent contact, N.O.
VPB11.dwg
Vertical push button, child contact, N.O.
VPB21.dwg
Horizontal limit switch, parent, N.O.
HLS11.dwg
164 | Chapter 4 Symbol Libraries
Summary of Contents for 22505-051400-9000 - AutoCAD Electrical 2008
Page 1: ...AutoCAD Electrical 2008 User s Guide February 20 2007 ...
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Page 242: ...HP W TERM_ VDC SPECIAL SPACINGFACTOR 0 5 HP WA D TERM_ 02 230 Chapter 5 PLC ...
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Page 1177: ...Insert P ID Component Overview of pneumatic tools 1165 ...
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Page 1269: ...AutoCAD Electrical Command In this chapter AutoCAD Electrical Commands 20 1257 ...
Page 1304: ...Z zip utility 82 1292 Index ...