9 - 17
Chapter 9 Major Positioning Control
Monitoring the current value
The "current feed value" and "machine feed value" are stored in the following
buffer memory addresses, and can be read using a "DFRO(P) instruction" or
"DMOV(P) instruction" from the PLC CPU.
Buffer memory addresses
QD77MS2/QD77MS4
QD77MS16
Md.20 Current feed value
800+100n
801+100n
2400+100n
2401+100n
Md.21 Machine feed value
802+100n
803+100n
2402+100n
2403+100n
(1) The following shows the examples of programs to read out the current feed
value of the QD77MS4 [axis 1] to D104 and D105 when X40 is turned ON.
(a) For the DFRO(P) instruction
X40
K800
D104
K1
H0
DFRO
(b) For the DMOV(P) instruction
X40
DMOV
U0\
G800
D104
Summary of Contents for MELSEC-Q QD77MS
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Page 27: ...A 26 MEMO...
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Page 101: ...3 34 Chapter 3 Specifications and Functions MEMO...
Page 232: ...5 111 Chapter 5 Data Used for Positioning Control MEMO...
Page 315: ...5 194 Chapter 5 Data Used for Positioning Control MEMO...
Page 337: ...6 22 Chapter 6 Sequence Program Used for Positioning Control...
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Page 413: ...MEMO...
Page 433: ...8 20 Chapter 8 OPR Control MEMO...
Page 458: ...9 25 Chapter 9 Major Positioning Control MEMO...
Page 593: ...10 30 Chapter 10 High Level Positioning Control MEMO...
Page 625: ...11 32 Chapter 11 Manual Control MEMO...
Page 659: ...12 34 Chapter 12 Expansion Control MEMO...
Page 767: ...13 108 Chapter 13 Control Sub Functions MEMO...
Page 813: ...14 46 Chapter 14 Common Functions MEMO...
Page 831: ...15 18 Chapter 15 Dedicated Instructions MEMO...
Page 846: ...16 15 Chapter 16 Troubleshooting MEMO...
Page 892: ...16 61 Chapter 16 Troubleshooting MEMO...
Page 971: ...Appendix 62 Appendices MEMO...
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