©
National Instruments Corporation
9
SCC-FT01 Feedthrough Module User Guide
PFI 7/AI SAMP CLK, AI + Cascaded, AI + Cascaded REF,
AI – Cascaded, AI – Cascaded REF, and AI SENSE Cascaded signals are
available for the second-stage AI SCC sockets only. The P0.(
X
) signal is
available for the first-stage AI SCC sockets only. Refer to Table 2 for pad
definitions.
When the E Series DAQ device is configured in NRSE AI mode, design
your prototype circuitry so that the output of the SCC-FT01 to the E Series
DAQ device is referenced single-ended to AI GND on the SC-2345.
Note
On the SC-2345, the AI GND and AI SENSE signals join at connector J24.
Analog Output
To use the SCC-FT01 for AO signal conditioning, use the pads above
connector J2 labeled
AO
for connections to the breadboard area. The
AO
column in Table 2 lists the signals available to each pad. Plug the
SCC-FT01 into any AO socket on the SC-2345.
The AO 0 and AO 1 signals depend on which AO SCC socket you use.
If you plug the SCC-FT01 into the AO SCC socket J17, the DAC (A) pad
connects to AO 0 and the DAC (B) pad to AO 1 on the E Series DAQ
device. These pad connections are reversed when the SCC-FT01 is plugged
into AO SCC socket J18, and the DAC (A) pad connects to AO 1 and
DAC (B) pad to AO 0 on the E Series DAQ device.
Counter
To use the SCC-FT01 for CTR functions, use the pads above connector J2
labeled
CTR
for connections to the breadboard area. The
CTR CH0
and
CTR CH1
columns in Table 2 list the signals available to each pad. The
signals available depend on which SCC socket you use.
If you plug the SCC-FT01 into the CTR CH0 socket J19, the pads under
CTR CH0 on the board connect to signals associated with CTR channel 0
and AO of the E Series DAQ device. When the SCC-FT01 is plugged into
the CTR CH1 socket J20, the pads under CTR CH1 on the board connect
to signals associated with CTR channel 1 and AI of the E Series DAQ
device.