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6.2.2
Self-loopback test
Self-loopback test checks the communication circuit of the master/local module.
When conducting the self-loopback test, use a normal Ethernet cable. (
RESET
66
Select "CC IE Field (Master Station)",
"CC IE Field (Local Station)",
or CC IE Field (Sub-Master Station).
Select "Self-Loopback Test."
Ethernet cable
or
power OFF
ON
Page 59, Section 5.3)
1.
Mount the master/local module on the base unit,
and connect GX Works2 to the CPU module.
2.
Set network parameters as shown in the figure to
left.
Project window
[Network Parameter]
MELSECNET]
3.
Write the network parameters set to the CPU
module.
[Online]
[Write to PLC]
4.
Connect PORT1 and PORT2 of the mater/local
modules with an Ethernet cable.
(
Page 68, Section 6.3)
5.
Reset the CPU module or power off and on the
system.
[Parameter]
[Ethernet/CC IE/
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Troubleshooting
