Broadcasting - Omron Sysmac NJ-series User Manual

9 Socket Service
9-2-4

Broadcasting

You can set the destination IP address to a broadcast address for a UDP socket to broadcast data to
the host and all nodes on the same network as the EtherNet/IP port. If there is a router on the network,
packets are not sent beyond the router. You can broadcast up to 1,472 bytes of data. Data larger than
1,472 bytes cannot be broadcast.
You can specify either of the two following types of broadcast addresses.
• Local Broadcast
If no destination IP address is specified, the following IP address is specified automatically.
Network segment: The network segment of the local IP address is set.
Host segment: All bits are set to 1.
• Global Broadcast
Specify this type when the IP address of the local node or the subnet to which the local node belongs
is unknown. As shown below, every bit of the 32-bit address is set to 1.
255.255.255.255
9-10
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)