network using DHCP. If the target is unable to initiate a DHCP connection, the target
connects to the network with a link-local IP address (169.254.x.x).
•
You may be experiencing firewall issues. If you are having difficulty detecting the system
and setting up the IC-3120 on your network, you must configure the firewall to open the
TCP/UDP ports used by the IC-3120 and the host machine. Refer to the following table
for more information about TCP/UDP ports.
Table 1. TCP/UDP Ports Used by the IC-3120
Port
Type
Details
3580 TCP/UDP Reserved as nati-svrloc (NATI-ServiceLocator). Used by MAX to locate
remote targets.
7749
TCP
Used for remote image display (not reserved).
7750
TCP
Used for NI-IMAQdx remote configuration (not reserved).
3363 TCP/UDP Reserved as nati-vi-server (NATI VI Server). Used by Vision Builder AI
to configure a remote target.
If your firewall is controlled remotely or you are unsure about configuring the firewall, contact
your network administrator.
(RT Only) No Software is Installed
MAX reports that no software is installed. Install application and driver software on the
IC-3120.
Related Information
Installing the NI Industrial Controller Device Drivers
on page 7
Cannot Drive Isolated Outputs
Verify that you have power connected to the V
ISO
and C
ISO
inputs on the IC-3120 isolated
power connector and that the contact at the screw terminals is solid. Because these outputs are
electrically isolated from the IC-3120 device main supply, they require power in addition to
the IC-3120 main supply.
LED Error Indications
The IC-3120 indicates specific error conditions by flashing the STATUS LED a specific
number of times.
IC-3120 Getting Started Guide
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© National Instruments
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