Communication Status Test - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Communication Status Test

The communication status test checks whether the communication between the own station and the external device on the
same Ethernet is operated normally.
The following external devices are the target of communication status test.
• RJ71EN71 (when the Ethernet function is used)
• RnENCPU (network part) (when the Ethernet function is used)
• MELSEC-Q series Ethernet interface module (function version B or later)
• MELSEC-L series Ethernet interface module
This test is performed on the network of stations connected to the engineering tool, by sending the test messages sequentially
to specified network and station number range. If the module that received the message returns a response, communication
is normal.
"Ethernet Diagnostics" window  [Communication Status Test] button
The communication status test cannot be used in the following cases.
• When the Ethernet function of the CPU module (CPU part for the RnENCPU) is used
• When the Ethernet diagnostics are started with a setting other than "No Specification" in "Other Station
Setting" on the "Specify Connection Destination Connection" window
■Procedure
Set the required items in "Setting Item" and click the [Execute] button to execute the communication status test. The test
results are displayed in the "Result" box.
3 TROUBLESHOOTING
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3.3 Checking the Network Status