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MELSEC-A
3 SPECIFICATION
3.6.6 CH.
check code (Addresses RWrn+0
H
to RWrn+7
H
)
(1) This area is used to check if the digital value is within or out of the setting range.
One of the following checking codes is stored when the digital value lower or
higher than the setting range is set.
Check code
Description
000F
H
A digital value which exceeds the setting range was set.
00F0
H
A digital value which is below the setting range was set.
00FF
H
The digital value less than the setting range and the digital value more than the
setting range were set before the error reset request.
For example, the 00FF
H
check code is stored if a digital value exceeding the valid
range is written, and then, without the check code being reset, a digital value that
falls short of the valid range is written.
(2) The check code once stored is not reset even if the set value is set to within the
valid setting allowed range.
(3) The storage area or the check code is reset by turning on the error reset request
flag (RY (n
+
1)A).
3.6.7 Error code (Address RWrn+8
H
)
If an error occurs (the RUN LED flickers) when data is written to the AJ65VBTCU-
68DAVN, the corresponding error code is stored into the remote register (address
RWrn+8
H
) of the AJ65VBTCU-68DAVN.
Refer to Section 6.1 for details of the error codes.
