cRIO-9025 Operating Instructions and Specifications
6
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Caution
The C terminals are internally connected to each other. If you use two power
supplies, make sure that they share a common ground.
Caution
The C terminals are internally connected to the controller chassis to prevent a
faulty ground connection from causing the chassis ground to float. If you reverse the input
voltage, the positive input voltage is connected directly to the chassis. The controller
has built-in reversed-voltage protection, but reversed voltage can damage connected
peripherals if the chassis ground is not reliably connected to earth ground.
Caution
Do not tighten or loosen the terminal screws on the power connector while the
power connector is plugged into the controller or while the power supply is on.
Powering On the Controller
Turn on each power supply to the CompactRIO system. The controller runs
a power-on self test (POST). During the POST, the Power and Status LEDs
turn on. When the Status LED turns off, the POST is complete. If the LEDs
do not behave in this way when the controller powers on, refer to the
Understanding LED Indications
section.
Configuring IP Settings and Installing Software
on the Controller
When you power on the controller for the first time, it boots into safe mode
because there is no software installed on it. This section describes how to
configure the IP settings and install software on the controller.
Complete the following steps.
1.
Launch MAX on the host computer and expand
Remote Systems
in
the MAX configuration tree. MAX lists the cRIO controller as the
model name of the controller followed by the serial number, for
example,
NI-cRIO9025-00108562
.
Tip
If the controller is on a different subnet from the host computer, it does not appear
under Remote Systems the first time you power it on. You can use the CONSOLE OUT
switch to read the IP address of the controller, and add it to Remote Systems in MAX. Refer
to the
CONSOLE OUT Switch
section for information about using a serial connection and
a terminal program for network configuration and troubleshooting.
The controller automatically attempts to connect to the network using
DHCP. If DHCP is not available, the controller connects to the network
with a link-local IP address with the form
169.254.x.x
.
2.
Select the controller under
Remote Systems
to see the
Network
Settings
tab in the middle pane of MAX.
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