Table d-2. digital signals on the scxi-1125, E d-2 – National Instruments Module SCXI-1125 User Manual

Page 86

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Appendix D Common Questions

© National Instruments Corporation

D-3

SCXI-1125 User Manual

In LabVIEW, can I use different input limits for the same SCXI-1125
channel if I repeat the channel in the SCXI channel string array?

No, the SCXI-1125 cannot dynamically change the gain settings during
scanning. Therefore, channels with similar input ranges should be grouped
together in the channel string array. Make sure that repeated channels in
different indices of the channel string array have the same input limits in
the corresponding input limits array.

In LabVIEW, can I use virtual channels with parallel mode channels
on the SCXI-1125?

Yes, virtual channels work with parallel mode operation on the SCXI-1125.
The E/M Series DAQ device must be directly connected to the module in
parallel mode operation. Also, virtual channels that use built-in CJC are
disabled and cannot be used in parallel mode.

In LabVIEW, can I use the calgnd channel string when the SCXI-1125
is in parallel mode?

Yes, you can autozero the SCXI-1125 in LabVIEW when using the module
in parallel mode.

Table D-2. Digital Signals on the SCXI-1125

Traditional

DAQ Signal

Name

DAQmx

Signal Name

SCXI Signal

Name

50-Pin

Connector

68-Pin

Connector

Direction

DIO0

P0.0

SER DAT IN

25

52

Output

DIO4

P0.4

SER DAT OUT

26

19

Input

DIO1

P0.1

DAQ D*/A

27

17

Output

DIO2

P0.2

SLOT 0 SEL*

29

49

Output

SCANCLK

AI HOLD
COMP,

AI HOLD

SCAN CLK

36

46

Output

EXTSROBE*

EXTSROBE

SER CLK

37

45

Output

STARTSCAN

AI SAMP
CLK,

AI SAMP

SYNC*

46

38

Output

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