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5 SETUP AND PREPARATION
5.6 Communication Test
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The transmission and reception tests are performed after connecting the QJ71DN91
and other DeviceNet devices with DeviceNet cables.
There is no restriction on the node No. setting of the communication target.
Execute the test in the following sequence:
Start
Connect QJ71DN91 and other DeviceNet
devices with DeviceNet cables. (See Section 5.5.)
Set same communication speed as those of other
DeviceNet devices. Set mode to A, B or C.
(See Section 5.3.3.)
Turn on network power supply and other
DeviceNet devices.
By powering on from off or resetting CPU
module, test starts.
During test, MS LED flashes green.
RUN
ERR.
When completed normally, MS LED stays
on green.
RUN
ERR.
When failed, MS LED turns off and ERR.
LED turns on.
RUN
ERR.
Test result?
Normal completion
End
MS
NS
MS
NS
MS
NS
Failed
Check error code in Hardware Test Result
Area (address: 062F
actions.
MELSEC-Q
), and take corrective
H
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Troubleshooting
