Mitsubishi Electric Q66DA-G, User Manual

Page: 52 / 190

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- 29 3.4 Buffer Memory
3.4.4 CH[]Set value check code (Un\G11 to Un\G16)
3
SPECIFICATIONS
3.4.4 CH [ ] Set value check code (Un\G11 to Un\G16)
(1) Digital values set in CH Digital value (Un\G1 to Un\G6) are checked and if any of
them is outside the settable range, the check result is stored in this area.
(2) When a digital value outside the settable range (Refer to Table3.7) is written, one of
the check codes listed in Table3.8 is stored.
(3) Once a check code is stored, it will not be reset even if the digital value is within the
settable 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 settable range.
(5) When the scaling function is used, digital values converted from the digital values set
in CH Digital value (Un\G1 to Un\G6) are checked. (Refer to Section 3.2.5.)
3.4.5 Error code (Un\G19)
(1) This area stores the error codes detected by the Q66DA-G.
(2) Refer to Section 8.1 for more details of the error codes.
Table3.8 Check code list
Check code Description
000F
H
A digital value exceeding the settable range is written.
00F0
H
A digital value that falls short of the settable range is written.
00FF
H
A digital value that either falls short or exceeds the settable range was written.
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 settable range is written.