Ping Test - Mitsubishi Electric MELSEC iQ-R Series User Manual

PING test

A PING test is used to check that an EtherNet/IP device exists on the same EtherNet/IP network.
The RJ71EIP91 sends a packet to the EtherNet/IP device to check its existence (an echo request). Then, the RJ71EIP91
checks whether communication is possible by seeing whether a response (an echo response) is returned.
(1) Echo request
(2) Echo response
Check method
The following methods are available for checking the PING test.
■Checking from EtherNet/IP Configuration Tool
Use EtherNet/IP Configuration Tool to execute a PING test.
For details, refer to the following.
Page 65 [Ping] tab
Page 76 [General] tab
■Checking from the buffer memory
Execute a PING test by operating a program that uses the buffer memory.
For the program example of PING tests, refer to the following.
Page 105 Program Example of PING Test
Error details
When the buffer memory is used to execute a PING test, the result of the PING test can be checked from 'Result'
(Un\G27908).
The following table lists the details when an error occurs.
'Result' (Un\G27908)
C0DBH
5 TROUBLESHOOTING
118
5.3 Checking the Network Status
(1)
(2)
Error details and causes
The target IP address is incorrect.
Action
• Set the IP address within the range between 1.0.0.1
and 126.255.255.255 or 128.0.0.0 and
223.255.255.254.
• The IP address of the own node cannot be set. Set the
IP address of the external device.