Mitsubishi Melsec-Q Series User Manual page 488

(6) PING test
PING test is a test by which existence of the Built-in Ethernet port QCPU can be checked from GX Developer.
Performing a PING test for the Built-in Ethernet port QCPU can determine the following:
• Whether the line is connected to the target Built-in Ethernet port QCPU properly
• Whether the parameters for the Built-in Ethernet port QCPU are set correctly
(a) Executing a PING test by GX Developer
In GX Developer, open the Ethernet diagnosis screen and click [PING test]
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Figure 12.46 Ethernet diagnosis screen