10 - 6 10 - 6
MELSEC-Q
10 TROUBLESHOOTING
10.1.5 Troubleshooting for other cases
Symptom Check
Action
Auto configuration is not
executed.
Are the following output signals on?
• I/O Communication Request (Y11)
• Request for Saving Parameters to Flash
ROM (Y17)
Set the output signals to off, and then set Auto
Configuration Request (Y15) to off and on
again.
• Is "Start" set in Auto Communication Start
Setting (address: 0631
H
)?
(I/O Communicating is on?)
• Set "Not start" in Auto Communication Start
Setting (address: 0631
H
), and save the
parameters to a flash ROM.
• Setting I/O Communication Request (Y11) to
on and then off will stop I/O communication,
and thereby I/O Communicating (X01) is set
to off.
Unable to obtain expected
parameters by auto
configuration.
• Are the slave nodes powered on?
• Is the network powered on?
• Is the wiring correct?
Check that the slave nodes and network are
powered up and the wiring is correct.
• If the target slave node is the QJ71DN91,
check if "Start" is set in Auto Communication
Start Setting (address: 0631
H
) or if I/O
Communication Request (Y11) is on.
When the auto communication start setting is
not set up for the target slave node
(QJ71DN91), set I/O Communication Request
(Y11) to off and then on.
• Are the slave nodes set in order of node No?
The slave node settings detected by auto
configuration are stored in order of node No.
Correct values in Parameters for Master
Function (address: 01D4
H
to 03CF
H
).
• Are the connection types and I/O points
correct?
Referring to the manual for each slave node,
check available connection types and I/O
points. Correct values in Parameters for Master
Function (address: 01D4
H
to 03CF
H
).
Parameter saving/clearing
is not started.
Are the following output signals on?
• I/O Communication Request (Y11)
• Auto Configuration Request (Y15)
Set the output signals to off, and then set
Request for Saving Parameters to Flash ROM
(Y17) to off and on again.
• Is "Start" set in Auto Communication Start
Setting (address: 0631
H
)?
(I/O Communicating is on?)
• Set "Not start" in Auto Communication Start
Setting (address: 0631
H
), and save the
parameters to a flash ROM.
• Setting I/O Communication Request (Y11) to
on and then off will stop I/O communication,
and thereby I/O Communicating (X01) is set
to off.
Parameters are not
saved.
• If the parameter saving area correct?
Check Parameter Area Select Bit (address:
0630H), and set Request for Saving
Parameters to Flash ROM (Y17) to off and
then on again.
Содержание QJ71DN91
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