Chapter 4 Connecting and Using Accessories and Transducers
Getting Started with SCXI 4-34 www.ni.com
Figure 4-22. Synchronizing Multiple Channels
Note
To synchronize multiple channels, you must make the connections shown
in Figure 4-22 and configure the slaved channels for external synchronization.
This is done through Measurement & Automation Explorer or by using the NI-DAQ
function
SCXI_Configure_Connection
.Youmustnot configure for external
synchronization the channel that originates the synchronization signal from its EX+ pin,
channel 0 in the example of Figure 4-22, since it serves as master and is not slaved to any
other channel.
CH0+
CH0–
SYNC0
GND
EX0+
EX0–
CH1+
CH1–
SYNC1
GND
EX1+
EX1–
CH2+
CH2–
SYNC2
GND
EX2+
EX2–
Master Channel–
Do NOT Configure
for External Synchronization
Slave Channel–
Configure for
External Synchronization
Slave Channel–
Configure for
External Synchronization
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