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Default Counter Terminals
© National Instruments Corporation
Routing Frequency Output to a Terminal
You can route Frequency Output to any output PFI <6..9> terminal. All
PFIs are set to high-impedance at startup.
By default, NI-DAQmx routes the counter/timer inputs and outputs to the
PFI pins, shown in Table 7-4.
Table 7-4. NI 6238/6239 Device Default NI-DAQmx Counter/Timer Pins
Counter/Timer Signal
CTR 0 SRC
CTR 0 GATE
CTR 0 AUX
CTR 0 OUT
CTR 0 A
CTR 0 Z
CTR 0 B
CTR 1 SRC
CTR 1 GATE
CTR 1 AUX
CTR 1 OUT
CTR 1 A
CTR 1 Z
CTR 1 B
You can use these defaults or select other sources and destinations for the
counter/timer signals in NI-DAQmx. Refer to Connecting Counter Signals
in the NI-DAQmx Help or the LabVIEW 8.x Help for more information on
how to connect your signals for common counter measurements and
generations. M Series default PFI lines for counter functions are listed in
Physical Channels in the NI-DAQmx Help or the LabVIEW 8.x Help.
Default Pin Number (Name)
13 (PFI 0)
32 (PFI 1)
33 (PFI 2)
17 (PFI 6)
13 (PFI 0)
32 (PFI 1)
33 (PFI 2)
15 (PFI 3)
34 (PFI 4)
16 (PFI 5)
36 (PFI 7)
15 (PFI 3)
34 (PFI 4)
16 (PFI 5)
7-31
Chapter 7
Counters
Port
P0.0
P0.1
P0.2
P1.0
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P1.1
P0.3
P0.4
P0.5
NI 6238/6239 User Manual
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