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APPENDIX
App - 5
(b)
PCWT command
Processing codes used in the A1SD51S/AD51H-S3
Contents
Device memory monitor registration
Random writing to device memory
Writing to expansion file register
Expansion file register monitor registration
Random writing to expansion file register
Continuous address designation data writing
to expansion file register
Writing of sequence program
Writing of microcomputer program
Writing of comment data
Writing of expansion comment data
Writing to special function module buffer
memory
Writing of parameter data
(Writing of MELSECNET/10 parameters)
Analysis of parameter data
(7) Year of DATE$
The year setting of DATE$ varies.
A1SD51S/AD51H-S3
Reading
Reads only the last two digits of the year.
However, if the last two digits are 90 or
more, the first two digits are 19. If the last
two digits are less than 90, the first two
digits are 20.
Writing
Writes only the last two digits of the year.
Processing Code
2(&H2)
3(&H3)
4(&H4)
Writing to Q/QnA series device memory
5(&H5)
Processing Code 515 (&H203)
6(&H6)
7(&H7)
8(&H8)
9(&H9)
Cannot be used in the Q/QnA Series
Cannot be replaced
10(&HA)
11(&HB)
Writing to Q/QnA series intelligent function
12(&HC)
module buffer memory
Processing code 533 (&H215)
14(&HE)
Cannot be used in the Q/QnA Series
Cannot be replaced
15(&HF)
QD51(-R24)
Reads the four-digit
year as it is.
Writes the four-digit
year as it is.
MELSEC-Q
Treatment
Countermeasure
Modify the program to
use four-digit year
processing.
Designate the year as
four digits correctly.
App - 5
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