Omron FH series User Manual page 192

Checking the Communications Status
Use the ping command to check if the Sensor Controller exists on the Ethernet network.
Use this to determine if the Sensor Controller's IP address has been set correctly and that the Sensor
Controller is correctly connected to the Ethernet network.
Note
The ping command uses the ICMP protocol to send a response request to a device connected through an Ethernet
network and determines the time required to respond to that request.
If you properly receive a response from the destination device, the network connection and network settings are
correctly set.
1
Connect the Sensor Controller and computer with an Ethernet cable.
Set the left segments of IP address of the computer to the same values as the Controller and set only the
right segment to a different value.
IP Address Setting Example
Device
Sensor Controller
Computer
2
Open the Windows command prompt on the computer and execute the ping command.
At the ">" prompt, type "ping", followed by a space and the IP address of the Controller, and then press
Enter.
Example:
C:\>ping 10.5.5.100
3
After a few seconds, if you see "Reply from" followed by the IP address of the Controller (e.g.,
10.5.5.100), you will know that the Controller is connected to the Ethernet network.
Example:
Reply from 10.5.5.100: byte=32
time<1ms TTL=128
If Anything Other than "Reply from" Is Displayed
This means that the Controller is not connected to the network for some reason. Check the following.
• Are the left three segments of the IP addresses of the computer and the Controller the same?
• Is the Ethernet cable connected?
4
Use the ping command to also check the communications status of the PLC.
After you have confirmed the communications status as described above, send an actual measurement
command to the Controller and check to confirm that Vision Sensor communications are operating correctly.
190
Communicating with PLC Link
Setting example
10.5.5.100 (default)
10.5.5.101
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)