Appendix A • Viewing angles
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Automation Panel 9x3 User's Manual V1.00
Appendix A
1 Abbreviations
Abbreviation
Stands for
Description
Normally closed
A normally closed relay contact
NC
Not connected
Used in pinout descriptions if a terminal or pin is not connected to a module
ND
Not defined
In data tables, this stands for a value that has not been defined. This may be be-
cause a cable manufacturer does not provide certain technical data, for example.
NO
Normally open
A N.O. relay contact
TBD
To be defined
Used in technical data tables when certain information is not yet available. The
value will be provided later.
Table 64: Abbreviations used in this user's manual
2 Viewing angles
Viewing angle specifications (R, L, U, D) for the display types are listed in the technical data for each device.
R
L
U
D
Facing 6 o'clock