Mitsubishi QJ71LP21 Reference Manual page 305

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
The parameter-set number of CPU
3010 modules differs from the actual
number in a multiple CPU system.
Multiple CPU setting or control CPU
setting differs from that of the
3012
reference CPU settings in a multiple
CPU system.
Multiple CPU automatic refresh setting
is any of the followings in a multiple
CPU system.
• When a bit device is specified as a
refresh device, a number other than
a multiple of 16 is specified for the
refresh-starting device.
• The device specified is other than
the one that may be specified.
3013
• The number of send points is an odd
number.
In a multiple CPU system, the multiple
CPU automatic refresh setting is any
of the following.
• The total number of transmission
points is greater than the maximum
number of refresh points.
• In a multiple CPU system, the online
module change parameter (multiple
CPU system parameter) settings
differ from those of the reference
CPU.
3014
• In a multiple CPU system, the online
module change setting is enabled
although the CPU module mounted
does not support online module
change.
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*12 : This applies to the CPU module of function version B or later.
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Corrective Action
Match the number of (CPU modules in
multiple CPU setting) - (CPUs set as
empty in I/O assignment) with that of
actually mounted CPU modules.
Match the multiple CPU setting or
control CPU setting in the PLC
parameter with that of the reference
CPU (CPU No.1) settings.
Check the following in the multiple
CPU automatic refresh parameters
and make correction.
• When specifying the bit device,
specify a multiple of 16 for the
refresh starting device.
• Specify the device that may be
specified for the refresh device.
• Set the number of send points to an
even number.
Check if the following settings have
been made in the refresh setting of the
multiple CPU setting, and correct the
settings as necessary.
• The total number of transmission
points is within the maximum
number of refresh points.
• Match the online module change
parameter with that of the reference
CPU.
• If the CPU module that does not
support online module change is
mounted, replace it with the CPU
module that supports online module
change.
MELSEC-Q
Corresponding
CPU
*12
Qn(H)
QnPH
*12
Q00/Q01
*12
Qn(H)
*12
Qn(H)
QnPH
*12
Q00/Q01
QnPH
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