Self-Loopback Test - Mitsubishi Electric MELSEC Q Series User Manual

5
PRE-OPERATION PROCEDURES
5.6.2

Self-loopback test

It is a test to check the send/receive function of the EtherNet/IP module.
The following is the procedure of a self-loopback test.
(1) Setting the EtherNet/IP module
(2) Executing a self-loopback test
(3) Checking the result of a self-loopback test
Normal completion
QJ71EIP71
ERR.LED turn off
Remark
1) Set the CPU module switch to STOP.
2) Disconnect the twisted pair cable from the EtherNet/IP module.
3) Set 000E to "Switch 1" on the "Switch Setting for I/O and Intelligent Function
H
Module" window in GX Works2.
( Section 5.5.2 Switch setting for the intelligent function module)
1) Turn off and on the power of the programmable controller, or reset the CPU
module.
2) The self-loopback test starts.
The ERR. LED flashes during the test.
QJ71EIP71
RUN
ERR.
Figure 5.18 Executing a self-loopback test
3) When the self-loopback test is completed, the ERR. LED turns off or flashes.
1) Check the result of the self-loopback test by the ERR. LED status.
QJ71EIP71
RUN
ERR.
Figure 5.19 Checking the result of a self-loopback test
The result of a self-loopback test is stored in the Self-diagnostics execution result
(Un\G27268). ( Section 9.4.1 How to check error codes)
2) For error completion, check the "Switch Setting for I/O and Intelligent Function
Module" for error and execute the self-loopback test again.
3) If the error is detected again, a hardware failure may have occurred in the
EtherNet/IP module.
Please consult your local Mitsubishi representative.
5.6 Self-Diagnostics of the EtherNet/IP Module
: On
: Flash
Error completion
RUN
ERR.
ERR.LED turn on
5.6.2 Self-loopback test
: On
: Off
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