Omron SYSMAC C200HW-PCS01-EV1, Operation Manual

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7-5-7 Gateway Address
An IP router can be used to connect multiple IP network segments. Networks
connected by an IP router can communicate with each other. FINS communica-
tions allow nodes on different networks to communicate with one another as if
these nodes are on the same network. To establish such communications, gate-
way addresses must be specified.
Host
computer
PC Card
Unit
IP router
PC Card
Unit
Ethernet network 1 Ethernet network 2
Host
computer
Host
computer
CV-series
PC
Host
computer
Assign an identical value to the FINS network addresses of the Ethernet net-
works connected by the IP router. (The network number or subnet number of the
IP address, however, must be different for each network.) For example, the PC
Card Units shown in the figure above have the same FINS network address
(same layer).
Broadcasting is not allowed between Ethernet networks connected by an IP
router. For example, data broadcast within Ethernet network 1 is not transmitted
to nodes on Ethernet network 2.
To specify a gateway address, select “7. Edit Gateway Address for Unit” from the
main menu of the setup software. Refer to 7-6 Setup Software Operation for
details on how to specify a gateway address.
7-5-8 Other Ethernet Environment Settings
The following Ethernet environment settings cannot be changed for the PC Card
Unit:
•
Broadcast address: All bits are fixed at 1.
•
Packet size: The size is fixed at 1,500 bytes. UDP data is split into 1,472-byte
data before transmission. TCP is 1,024 bytes.
•
KEEP ALIVE: Fixed at 60 seconds.
•
Send/Receive packet: Fixed at 2,048 bytes.
7-5-9 Setting the Port Number
In the Ethernet Set, FINS communications are processed through the UDP port.
The default port number is 9600.
To change the port number, use the following procedure.
1, 2, 3... 1. Using the text editor of the personal computer, change the last line of the file
BASE.BAT to read as follows:
base
→
base <port_number>
2. Save the BASE.BAT file, exit the text editor, and activate the setup software.
3. Operate the setup software as usual.
For details on setup software operation refer to, 7-6 Setup Software Opera-
tion.
Setting Up the Ethernet Environment
Section 7-5