Omron CJ1W-FLN22, Operation Manual, Page: 182 / 277

Troubleshooting Procedures Section 10-4
156
10-4-3 FINS Communications Problems for SEND(090), RECV(098), and
CMND(490)
10-4-4 Checking IP Address Using PING Command
The PING command can be used from a Windows computer to check the FL-
net device connections and IP address settings, without requiring the FL-net
Network Analyzer or other special Programming Device. An overview of oper-
ation using the PING function are provided in the following table.
Did the completion code end nor-
mally? Refer to 10-1 Troubleshooting with Indicators as
well as the 10-3 Error Log .
Is the control data set properly? Correct the network address, node address and
unit address in the FINS address settings.
Is an IP address set that has the
same HOST ID as a remote node? Use the IP address setting switches (rotary
switches at the back of the Unit) or the CX-FLnet
or FL-net Unit Support Software to correct the IP
address setting.
If you are using the IP address setting switches,
you must turn the PLC OFF and disconnect it
from the network to reset it.
If you are using the CX-FLnet or FL-net Unit
Support Software, restart the PLC after you
change the setting.
Are you communicating with
nodes on another network in the
FINS address system? Check to see if the relay path (routing table) is
defined for FINS messages.
Use the CX-Integrator to create the correct rout-
ing table.
Please note that all CPU Bus Units and INNER
Boards will reset automatically if you use the
CX-Integrator to define the routing table.
Checking IP
connection
using PING Use the PING command to check that IP connections are correct.
1) From Windows, Select Start - Programs - MS-DOS Prompt to
display the MS-DOS window, as follows
Microsoft (R) Windows
(C) Copyright Microsoft Corp xxxx.xxxx
C:\WINDOWS>
2) Enter the PING command, and execute the basic internode test
between the Link Unit and personal computer. Enter the PING com-
mand as either Ping[IP address] or Ping[Host name].
IP Address Example: Ping 192.168.250. 13
The following message will be displayed if the corresponding FL-net
device setting is correct.
Pinging 192.168.250. 13. with 32 bytes of data
Reply from 192.168.250. 13. 13 bytes=32 time=2ms TTL=32
Reply from 192.168.250. 13. 13 bytes=32 time=1ms TTL=32
Reply from 192.168.250. 13. 13 bytes=32 time=1ms TTL=32
C:WINDOWS>
3) The following message will be displayed for a timeout due to a
failed (NG) connection.
Pinging 192.168.250. 13. with 32 bytes of data
Request timed out.
Request timed out.
Request timed out.
Request timed out.
C:WINDOWS>