Omron Sysmac NJ-series User Manual page 137

Additional Information
If there is an error in the set IP address, the CPU Unit behaves as follows:
• The NET RUN indicator on the CPU Unit does not light and the NET ERR indicator flashes
red. On an NX701 CPU Unit, indicators will indicate the status of each built-in EtherNet/IP
port.
• An IP Address Setting Error is recorded in the event log.
Precautions for Correct Use Precautions for Correct Use
• If the IP address is duplicated or not set correctly, communications are not possible via the
EtherNet/IP network. Use the Sysmac Studio to set the IP address again in direct connection
via Ethernet.
• The IP address range shown below is used by the system and cannot be specified.
169.254.0.0 to 169.254.255.255
192.168.255.0 to 192.168.255.255
• Due to Ethernet restrictions, you cannot specify the IP addresses that are described below.
• An IP address that is all 0's or all 1's
• IP addresses that start with 127, 0, or 255 (decimal)
• IP addresses that have a host ID that is all 0's or all 1's
• Class-D IP addresses (224.0.0.0 to 239.255.255.255)
• Class-E IP addresses (240.0.0.0 to 255.255.255.255)
Connecting from a Saved Project
The connection configuration that is set (USB or EtherNet/IP) is saved in the project. (The file is
xxx.smc.) If you open a saved project on the Sysmac Studio, you can connect to the EtherNet/IP net-
work without redoing the settings.
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)
4 Determining IP Addresses
4
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