Signal Connection Descriptions - National Instruments DAQPad-1200 User Manual

Signal Connection Descriptions

Pins Signal Name
1–8 ACH<0..7>
9 AISENSE/AIGND
10 DAC0OUT
11 AGND
12 DAC1OUT
13 DGND
14–21 PA<0..7>
22–29 PB<0..7>
30–37 PC<0..7>
38 EXTTRIG
39 EXTUPDATE*
40 EXTCONV*
41 OUTB0
42 GATB0
43 OUTB1
© National Instruments Corporation
Table 3-1 describes the connector pins on the DAQCard-1200 front
I/O connector by pin number and gives the signal name and information
about each signal connector pin.
Table 3-1. Signal Descriptions
Direction Reference
AI AGND
AI AGND
AO AGND
N/A N/A
AO AGND
N/A N/A
DIO DGND
DIO DGND
DIO DGND
DI DGND
DI DGND
DIO DGND
DO DGND
DI DGND
DIO DGND
Analog Channel 0 through 7—Analog input channels
0 through 7.
Analog Input Sense/Analog Input Ground—Connected to
AGND in RSE mode, analog input sense in NRSE mode.
DAC0 Output—Voltage output signal for analog output
channel 0.
Analog Ground—Analog output ground reference for
analog output voltages. This signal is the bias current return
point for differential measurements.
DAC1 Output—Voltage output signal for analog output
channel 1.
Digital Ground—Voltage ground reference for the digital
signals and the +5 V supply.
Port A 0 through 7—Bidirectional data lines for port A.
PA7 is the MSB, and PA0 is the LSB.
Port B 0 through 7—Bidirectional data lines for port B.
PB7 is the MSB, and PB0 is the LSB.
Port C 0 through 7—Bidirectional data lines for port C.
PC7 is the MSB, and PC0 is the LSB.
External Trigger—External control signal to trigger a
DAQ operation.
External Update—External control signal to update
DAC outputs.
External Convert—External control signal to time
A/D conversions (DI) and drive SCANCLK when you use
SCXI (DO).
Output B0—Voltage output signal of counter B0.
Gate B0—External control signal for gating counter B0.
Output B1—Voltage output signal of counter B1 when
selected as output (DO). This is the external control signal
for timing an interval cycle when selected as input (DI).
3-3
Chapter 3 Connecting the Signals
Description
DAQCard-1200 User Manual