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Appendix - 56
MELSEC-Q
APPENDICES
Buffer memory address
A1SD75 QD75
Items of A1SD75
Axis 1 Axis 2 Axis 3 Axis 1 Axis 2 Axis 3
Md.29
Current feed value
800
801
900
901
1000
1001
800
801
900
901
1000
1001
Md.30
Machine feed value
802
803
902
903
1002
1003
802
803
902
903
1002
1003
Md.31
Feedrate
804
805
904
905
1004
1005
804
805
904
905
1004
1005
Md.32
Valid M code
806 906 1006 808 908 1008
Md.33
Axis error No.
807 907 1007 806 906 1006
Md.34
Axis warning No.
808 908 1008 807 907 1007
Md.35
Axis operation status
809 909 1009 809 909 1009
Md.36
Current speed
810
811
910
911
1010
1011
810
811
910
911
1010
1011
Md.37
Axis feedrate
812
813
912
913
1012
1013
812
813
912
913
1012
1013
Md.38
Speed-position switching control positioning
amount
814
815
914
915
1014
1015
814
815
914
915
1014
1015
Md.39
External input/output signal
816 916 1016 816 916 1016
Md.40
Status
817 917 1017 817 917 1017
Md.41
Target value
818
819
918
919
1018
1019
818
819
918
919
1018
1019
Md.42
Target speed
820
821
920
921
1020
1021
820
821
920
921
1020
1021
Md.43
OP absolute position
822
823
922
923
1022
1023
– – –
Md.44
Movement amount after near-point dog ON
824
825
924
925
1024
1025
824
825
924
925
1024
1025
Md.45
Torque limit stored value
826 926 1026 826 926 1026
Md.46
Special start data instruction code setting value
827 927 1027 827 927 1027
Md.47
Special start data instruction parameter setting
value
828 928 1028 828 928 1028
Md.48
Start positioning data No. setting value
829 929 1029 829 929 1029
Md.49
In speed control flag
830 930 1030 830 930 1030
Md.50
In speed change processing flag
831 931 1031 831 931 1031
Md.51
Start data pointer being executed
832 932 1032 834 934 1034
Md.52
Last executed positioning data No.
833 933 1033
837 937 1037
Md.53
Repetition counter
(QD75: Md. 41 Special start repetition counter)
834 934 1034 832 932 1032
Md.54
Positioning data No. being executed
835 935 1035 835 935 1035
Md.55
Block No. being executed
836 936 1036 836 936 1036
Md.56
Positioning data being executed
838 to 847 938 to 947
1038 to
1047
838 to 847 938 to 947
1038 to
1047