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National Instruments Corporation
G-1
Glossary
Symbol
Prefix
Value
µ
micro
10
– 6
m
milli
10
–3
M
mega
10
6
Numbers/Symbols
/
per
%
percent
±
plus or minus
+5 V
+5 VDC source signal
A
A
Amperes
absolute mode
Treat the target position loaded as position relative to zero (0) while making
a move.
absolute position
Position relative to zero.
active closed
A signal is active when current is flowing through the optocoupled input.
active high
A signal is active when its value goes high (1).
active low
A signal is active when its value goes low (0).
active open
A signal is active when current is not flowing through the optocoupled
input.
address
Character code that identifies a specific location (or series of locations)
in memory or on a host PC bus system.