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Chapter 2 Function Reference — Select_Signal
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National Instruments Corporation 2-387 NI-DAQ FRM for PC Compatibles
Signal Name Equivalencies
For a variety of reasons, some timing signals are given different names in the hardware
documentation and the software and its documentation. The following table lists the
equivalencies between the two sets of signal names.
The VXI-MIO-64E-1 and VXI-MIO-64XE-10 devices use the VXIbus trigger lines to
implement the RTSI bus synchronization between two or more such devices. The following
table shows the mapping between the RTSI bus line (identifier) and the corresponding
VXIbus trigger line.
Table 2-37.
E Series Signal Name Equivalencies
Signals Hardware Name Software Name
AI-Related
TRIG1 ND_IN_START_TRIGGER
TRIG2 ND_IN_STOP_TRIGGER
STARTSCAN ND_IN_SCAN_START
SISOURCE ND_IN_SCAN_CLOCK_TIMEBASE
CONVERT* ND_IN_CONVERT
AIGATE ND_IN_EXTERNAL_GATE
SI2SOURCE ND_IN_CHANNEL_CLOCK_TIMEBASE
AO-Related
WFTRIG ND_OUT_START_TRIGGER
UPDATE* ND_OUT_UPDATE
AOGATE ND_OUT_EXTERNAL_GATE
UISOURCE ND_OUT_UPDATE_CLOCK_TIMEBASE
AO2GATE
N/A
UI2SOURCE
N/A
Table 2-38.
RTSI Bus Line and VXIbus Trigger Mapping
RTSI bus line identifier VXIbus trigger line
ND_RTSI_0
VXIbus TTL Trigger 0 (TTLTRG0)
ND_RTSI_1
VXIbus TTL Trigger 1 (TTLTRG1)
ND_RTSI_2
VXIbus TTL Trigger 2 (TTLTRG2)
ND_RTSI_3
VXIbus TTL Trigger 3 (TTLTRG3)