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MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.1.3 Designating the positioning address
The following shows the two methods for commanding the position in control using
positioning data.
Absolute system
Positioning is carried out to a designated position (absolute address) having the
OP as a reference. This address is regarded as the positioning address. (The
start point can be anywhere.)
Address
100
Address
150
Address
300
100
A point
150
B point
300
C point
Within the stroke limit range
Address 150
Address
100
Address 100
Address 150
OP
(Reference point)
Start point
End point
Fig. 9.6 Absolute system positioning
Incremental system
The position where the machine is currently stopped is regarded as the start point,
and positioning is carried out for a designated movement amount in a designated
movement direction.
Movement amount
+100
Movement
amount -150
Movement amount
-100
Movement 50
100
150
300
Movement amount-100
A point
B point
Within the stroke limit range
C point
Movement amount
+100
Movement 100
Start point
End point
Fig. 9.7 Incremental system positioning
Summary of Contents for MELSEC-Q QD75M
Page 1: ...MELSEC Q QD75M Positioning Module User s Manual Details QD75M1 QD75M2 QD75M4 ...
Page 17: ...MEMO ...
Page 64: ...3 11 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS MEMO ...
Page 91: ...4 16 MELSEC Q 4 INSTALLATION WIRING AND MAINTENANCE OF THE PRODUCT MEMO ...
Page 108: ...5 17 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 112: ...5 21 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 116: ...5 25 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 138: ...5 47 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 182: ...5 91 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 188: ...5 97 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 194: ...5 103 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 253: ...5 162 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 274: ...6 21 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 275: ...6 22 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 276: ...6 23 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 277: ...6 24 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 278: ...6 25 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 279: ...6 26 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
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Page 304: ...6 51 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 305: ...6 52 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 332: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Page 336: ...7 11 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Page 347: ...MEMO ...
Page 477: ...9 116 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 539: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO ...
Page 663: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 771: ...Appendix 2 MELSEC Q APPENDICES MEMO ...
Page 845: ...Appendix 76 MELSEC Q APPENDICES MEMO ...
Page 855: ...Index 10 X X0 QD75 READY 3 15 X1 Synchronization flag 3 15 Z Zero speed Pr 130 5 74 ...