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National Instruments Corporation
7
Getting Started with the NI CVS-1450 Series
The NI CVS-1450 device ships with a 4-position power connector that plugs directly into the power
input connector on the NI CVS-1450 device. To wire power to the 4-position connector, complete the
following steps:
1.
Wire the voltage output of the 24 VDC ±10% power supply to the main voltage input, labeled
V
,
on the 4-position connector.
2.
Wire the common-mode signal (ground) output of the power supply to the common-mode signal
input, labeled
C
, on the 4-position connector.
If you are using a separate power supply for the NI CVS-1450 device isolated outputs, connect the
voltage output on the power supply to the isolated power (
V
iso
) on the 4-position connector. Connect the
common-mode signal on the power supply to the isolated common-mode signal (
C
iso
) on the connector.
Note
If you do not require a separate power supply for the NI CVS-1450 device isolated outputs,
you can daisy-chain the
V
to the
V
iso
and the
C
to the
C
iso
on the connector.
For information about grounding the NI CVS-1450 device chassis to earth ground, refer to the
NI CVS-1450 Series User Manual
.
Connecting the NI CVS-1450 Device to a Network
Use a standard CAT 5 or CAT 6 Ethernet cable to connect the NI CVS-1450 device to a network.
If the development computer is already configured on a network, you must configure the NI CVS-1450
device on the same network. If the development computer is not connected to a network, you can
connect the development computer and the NI CVS-1450 device directly using a CAT 5 or CAT 6
Ethernet crossover cable.
Caution
To prevent data loss and to maintain the integrity of your Ethernet installation, do
not
use
a cable longer than 100 m. If you are using a 100 Mbps Ethernet, National Instruments recommends
using a CAT 5 or CAT 6 shielded twisted-pair Ethernet cable.
Subnet Considerations
To configure the NI CVS-1450 device, it must reside on the same subnet as the development computer.
Once the NI CVS-1450 device is configured, other subnets can access and use it.
To use the NI CVS-1450 device on a subnet other than the one on which the development computer
resides, first connect and configure the NI CVS-1450 device on the same subnet as the development
computer. Next, physically move the NI CVS-1450 device to the other subnet and reassign an IP
address. Contact your network administrator for assistance in setting up the development computer and
NI CVS-1450 device on the same subnet.
Connecting the NI CVS-1450 Device to the Development Computer
The development computer communicates with the NI CVS-1450 device over an Ethernet connection.
Use a standard Ethernet cable to connect from the network port to the NI CVS-1450 device.
Note
If you are
not
connecting through a network, use an Ethernet crossover cable to connect the
NI CVS-1450 device directly to the development computer.
To connect the NI CVS-1450 device to the development computer, refer to Figure 5 while completing
the following steps:
1.
Verify that the development computer is connected to the network and is powered on.
2.
Using a standard Ethernet cable, connect from the network port to the Ethernet port on the
NI CVS-1450 device.
