Analog Input Signal Connections - National Instruments DAQ PCI E Series User Manual

Chapter 4 Signal Connections

Analog Input Signal Connections

Caution:
!
PCI E Series User Manual
PCI-MIO-16E-1, PCI-MIO-16E-4, PCI-MIO-16XE-50,
PCI-MIO-16XE-10, and PCI-6032E
The analog input signals for the PCI E Series boards are ACH<0..15>,
AISENSE, and AIGND. The ACH<0..15> signals are tied to the 16
analog input channels of your PCI E Series board. In single-ended
mode, signals connected to ACH<0..15> are routed to the positive input
of the board PGIA. In differential mode, signals connected to
ACH<0..7> are routed to the positive input of the PGIA, and signals
connected to ACH<8..15> are routed to the negative input of the PGIA.
PCI-6031E, PCI-6033E, and PCI-6071E
The analog input signals are ACH<0..63>, AISENSE, AISENSE2, and
AIGND. The ACH<0..63> signals are tied to the 64 analog input
channels of the boards. In single-ended mode, signals connected to
ACH<0..63> are routed to the positive input of the PGIA. In differential
mode, signals connected to ACH<0..7, 16..23, 32..39, 48..55> are
routed to the positive input of the PGIA, and signals connected to
ACH<8..15, 24..31, 40..47, 56..63> are routed to the negative input of
the PGIA.
Exceeding the differential and common-mode input ranges distorts your
input signals. Exceeding the maximum input voltage rating can damage
the PCI E Series board and the computer. National Instruments is
liable for any damages resulting from such signal connections. The
maximum input voltage ratings are listed in the Protection column of
Tables 4-1 to 4-3.
In NRSE mode, the AISENSE signal is connected internally to the
negative input of the PCI E Series board PGIA when their
corresponding channels are selected. In DIFF and RSE modes, this
signal is left unconnected.
AIGND is an analog input common signal that is routed directly to the
ground tie point on the PCI E Series boards. You can use this signal for
a general analog ground tie point to your PCI E Series board if
necessary.
Connection of analog input signals to your PCI E Series board depends
on the configuration of the analog input channels you are using and the
4-12
NOT
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