User`s manual

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MELSEC-Q
3 SPECIFICATIONS
3.4.4 CH set value check codes (buffer memory addresses 11, 12: Un\G11, Un\G12)
(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 (see Table 3.7) is written, one of the
check codes listed in Table 3.8 is stored.
Table 3.8 Check code list
Check code Description
000F
H
A digital value exceeding the valid range was written.
00F0
H
A digital value that falls short of the valid range was written.
00FF
H
A digital value that either falls short or exceeds the valid range was
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 the CH
set value check code, set the error clear request (YF) to ON
after rewriting the digital value so that it is within the valid range.
3.4.5 Error codes (buffer memory address 19: Un\G19)
(1) The error codes detected by the Q62DA-FG are stored.
(2) See Section 8.1 for more details of the error codes.