Omron CJ1W-ETN11 Network Card User Manual


 
46
Creating Routing Tables Section 3-8
explanation of how to create an I/O table using a CX-Programmer, refer to the
CX-Programmer User’s Manual.
Use the following procedure to create the I/O table.
Note With the CJ Series, it is necessary to create an I/O table only when I/O alloca-
tion is performed by the user. With the CS Series, it is always necessary to
create an I/O table.
3-8 Creating Routing Tables
When the FINS communications service is used, routing tables must be cre-
ated in advance. Routing tables are required in the following circumstances.
When the FINS communications service is used on an Ethernet network
(including when communications are only carried out between FA net-
works via an Ethernet network).
When there are multiple Communications Units mounted to the PC, and
socket services are requested by executing the CMND(490) instruction.
If neither of these circumstances apply, then a routing table is not required. In
that case, proceed to 3-9 System Setup.
The routing table is required not only for nodes communicating via the FINS
communications service but for all relay nodes on the network.
3-8-1 Routing Table Overview
The routing tables describe the transmission path for FINS messages when
the FINS communications are used. It consists of two tables: A local network
table and a relay network table.
Initial screen
Password
or
(Save or clear the CPU Bus Unit System Setup.)
SHIFT
WRITE
CHG
CH
*DM
000000 I/O TBL ?
000000 I/O TBL
WRIT ????
000000CPU BU ST?
0:CLR 1:KEEP
000000 I/O TBL
WRIT OK