Set Value Check Code (Buffer Memory Address 11, 12: Un\G11, Un\G12); Error Code (Buffer Memory Address 19: Un\G19) - Mitsubishi Electric MELSEC Q Series User Manual

3 SPECIFICATIONS

3.4.4 Set value check code (buffer memory address 11, 12: Un\G11, Un\G12)

3.4.5 Error code (buffer memory address 19: Un\G19)

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(1) This area stores the result of checking whether a digital value that was set is
within or outside the valid range.
(2) When a digital value outside the valid range (refer to Table 3.7) is written, one of
the check codes listed in Table 3.8 is stored.
Check code
000F A digital value exceeding the valid range was written.
H
00F0 A digital value that falls short of the valid range was written.
H
A digital value that either falls short or exceeds the valid range was written.
For example, the 00FF
00FF
H
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.
(3) Once a check code is stored, it will not be reset even if the digital value is within
the valid range.
(4) To reset CH Set value check code, set Error clear request (YF) to on after
rewriting the digital value so that it is within the valid range.
(1) The error codes detected by the Q62DA-FG are stored.
(2) Refer to Section 8.1 for more details of Error code.
Table 3.8 Check code list
Description
check code is stored if a digital value exceeding
H
MELSEC-Q
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