Mitsubishi L26CPU-BT, Руководство пользователя

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15 TROUBLESHOOTING
(2) Problems on abnormal cyclic data of a remote device station
Description of problem Check item Check contents Check procedure Corrective action
Is the automatic refresh set
properly?
(RX, RY, RWw, RWr, SB, SW) Is not the area overlapped with
the program or device used at
other network? Set so as not to overlap with
devices used in the program or in
other networks.
D1-1 Refresh data area
Is the access to buffer memory
correct?
(RX, RY, RWw, RWr, SB, SW) Check if there is no overlapping
with devices used in the program
or in other networks.
Access the corresponding station
address.
Set so as not to overlap with the
device used in the program.
Unable to read/write
cyclic data
D1-2 Parameter setting
Is there any fault in the reserved
station setting?
Check if the reserved station is
not set or the corresponding
station bits (SW0074 to SW0077)
are not set to "1".
Release the reserved station
setting.
Unable to read/write
word data
D2-1 Parameter setting
Is there any fault in the
consistency with the parameter?
Check if any remote I/O station is
installed to the corresponding
station number.
Combine the parameter and the
installed model.
Unable to read/write
the lower area of the
cyclic data.
D3-1 Parameter setting
Is there any fault in the
consistency with the parameter?
Check if any device, which
number of occupied stations is
small, is installed to the
corresponding station number.
Combine the number of occupied
stations of the parameter and
installed model.
Unable to RY-output. D4-1 Refresh instruction
Is the refresh instruction
(SB0003) executed? Check if the refresh instruction
(SB0003) is turned on. Turn on the refresh instruction
(SB0003).
Is the initial setting (Xn18)
completed?
Check if the initial data
processing request (Xn18) is
turned off.
Execute the initial data
processing.
Is the remote device station
initialize procedure registration
completed normally?
Check if the remote device station
initialize procedure registration
(SB000D) is turned on.
Check the result of the remote
device station initialize procedure
registration instruction.
Review the remote device station
initialize procedure registration.
Unable to turn the
remote device station
to Ready (Xn1B: ON).
D5-1 Initial setting
Is there any fault in the remote
device station initial setting? Check the parameter.
Check the program. Set the remote device station
initial setting properly.