9 - 17
MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.1.4 Confirming the current value
Values showing the current value
The following two types of addresses are used as values to show the position in
the QD75.
These addresses ("current feed value" and "machine feed value") are stored in the
monitor data area, and used in monitoring the current value display, etc.
Current feed value
•
This is the value stored in " Md.20 Current feed value".
•
This value has an address established with a "machine OPR" as a
reference, but the address can be changed by changing the current
value to a new value.
•
This value is updated every 0.9ms (QD75P N/QD75D N) or 1.8ms
(QD75P /QD75D ).
Machine feed value
•
This is the value stored in " Md.21 Machine feed value".
•
This value always has an address established with a "machine OPR"
as a reference. The address cannot be changed, even if the current
value is changed to a new value.
•
This value is updated every 0.9ms (QD75P N/QD75D N) or 56.8ms
(QD75P /QD75D ).
The "current feed value" and "machine feed value" are used in monitoring the
current value display, etc.
0
1 to
Current feed value
t
V
OP
20000
Current value changed to
20000 with current value
changing instruction
0
1 to
Machine feed value
Address after the current
value is changed is stored
10000
10000
Address does not change even
after the current value is changed
Md.20
Md.21
Fig. 9.8 Current feed value and machine feed value
Summary of Contents for Melsec-Q QD75D1
Page 1: ......
Page 2: ......
Page 22: ...A 20 MEMO ...
Page 24: ...MEMO ...
Page 41: ...1 17 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Page 48: ...1 24 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Page 60: ...2 12 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Page 137: ...5 33 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 232: ...5 128 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 252: ...6 20 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 253: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 278: ...6 46 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL MEMO ...
Page 292: ...MEMO ...
Page 436: ...9 120 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 464: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Page 638: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 647: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 686: ...15 48 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 839: ...Appendix 153 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Page 840: ...Appendix 154 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Page 841: ...Appendix 155 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Page 842: ...Appendix 156 MELSEC Q APPENDICES MEMO ...
Page 857: ......
Page 858: ......