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MELSEC-
A
5 DATA USED FOR POSITIONING CONTROL
Default value Storage buffer memory address (common for axis 1 to axis 2)
0
15
684
685
686
687
14
680
681
682
683
13
676
677
678
679
12
672
673
674
675
11
668
669
670
671
10
664
665
666
667
9
660
661
662
663
8
656
657
658
659
7
652
653
654
655
6
648
649
650
651
5
644
645
646
647
4
640
641
642
643
3
636
637
638
639
2
632
633
634
635
1
628
629
630
631
0
624
625
626
627
688
Pointer No.
Item
Buffer memory
address
Md.23
Error history pointer
Md.19
Axis in which the
error occurred
Md.20
Axis error No.
Md.21
Axis error occurrence
time (Hour: minute)
Md.21
A
xis error occurrence
time (Second: 100ms)
The pointer No. following the pointer No.
where the latest error history is stored is stored.
Error history
Pointer No.
A "pointer No." is assigned to each block of buffer memory
that configures one start history.
Example)
Pointer No. 0 = Buffer memory 624 to 627
Pointer No. 1 = Buffer memory 628 to 631
Pointer No. 2 = Buffer memory 632 to 635
The history is stored in order in pointer No. "0" to "15".
If the No. of history items exceeds this, the history will
return to "0" and be stored in order.
(When newly storing history items, the previous history will be cleared.)
·
·
·
0
0000
0000
0 688