Test Mode (Self-Loop-Back Test) - Mitsubishi FX3UC SERIES User Manual

FX FX Series Programmable Controllers Series Programmable Controllers
3UC 3UC
User's Manual - Hardware Edition User's Manual - Hardware Edition

9.10.4 TEST mode (self-loop-back test)

In TEST mode, it is not necessary to connect remote stations.
(Set the DIP switches, and turn ON the power of the PLC.)
Contents indicated by status indicator LEDs and countermeasures
The table below shows the descriptions of errors indicated by the status indicator LEDs and their
countermeasures.
Status
indicator LEDs
L RUN
L ERR.
286
→ For the test mode execution procedure, refer to Subsection 9.10.5.
Description
Self-loop-back test
On
normally
Self-loop-back test
abnormally
Off
(Not on while the self-loop-back test is
being executed)
Self-loop-back test
On
abnormally
Self-loop-back test
normally
Off
(Not on while the self-loop-back test is
being executed)
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
was finished
• Make sure that the power is correctly supplied to
was finished
the PLC.
• If the L RUN LED is on even after the above
check, consult a Mitsubishi Electric Distributor.
• Make sure that the power is correctly supplied to
the PLC.
was finished
• If the L RUN LED is on even after the above
check, consult a Mitsubishi Electric Distributor.
was finished
9.10 Details of the operation mode
Countermeasures
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-