When Transient Data Are Faulty - Mitsubishi LJ61BT11 User Manual

15.2.3 When transient data are faulty

Description of problem
F1-1
F1-2
Transient error
F1-3
15 - 17
(1) Problems on abnormal transient data of an intelligent device station
(local station)
Check item
Is there any fault in the transient
Refresh data area transmission (dedicated
instruction)?
Is there any fault in the
Parameter setting
consistency of the parameter?
Error code B404
up)
Is there any fault in the transient
transmission (dedicated
Response status instruction)?
Does any error occur at the
master station or intelligent
device station?
Check contents
Check if a correct address is
accessed.
Check if the remote I/O station or
remote device station is installed.
Check if there is no response
(response time
H
from the request destination
station within the monitoring time.
Check the error code of the
completion status when executing
a dedicated instruction.
Check the error code of the
programmable controller CPU.
Check the error code of the
master station.
Check the operation status of the
master station or target intelligent
device station.
15 TROUBLESHOOTING
Check procedure
Access the corresponding station
address.
Combine the parameter and the
installed model.
Make the setting value of
monitoring time longer.
However, if an error occurs,
check the modules and cables at
the request destination.
Take corrective actions according
to the error codes of the
completion status.
Take corrective actions according
to the error code.
Corrective action
15 - 17