9 - 17
MELSEC-Q
9 MAJOR POSITIONING CONTROL
Restrictions
(1) A 1.7ms error will occur in the current value update timing when the stored
"current feed value" is used in the control.
A 56.8ms error will occur in the current value update timing when the stored
"machine feed value" is used in the control.
(2) The "current feed value" and "machine feed value" may differ from the values
set in " Da.6 Positioning address/movement amount" of the positioning data if
the movement amount per pulse is not set to "1".
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) command" from
the PLC CPU.
Buffer memory addresses
Axis 1
Axis 2
Axis 3
Axis 4
Md.20 Current feed value
800, 801
900, 901
1000, 1001
1100, 1101
Md.21 Machine feed value
802, 803
902, 903
1002, 1003
1102, 1103
Example
Program in which the axis 1 current feed value is read to D104 and D105
<Read current feed value to D104 and D105>
Summary of Contents for QD75MH1
Page 17: ...A 16 MEMO ...
Page 19: ...MEMO ...
Page 66: ...3 11 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS MEMO ...
Page 97: ...4 18 MELSEC Q 4 INSTALLATION WIRING AND MAINTENANCE OF THE PRODUCT MEMO ...
Page 102: ...5 5 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 110: ...5 13 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 116: ...5 19 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 120: ...5 23 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 124: ...5 27 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 158: ...5 61 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 196: ...5 99 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 202: ...5 105 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 208: ...5 111 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 269: ...5 172 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 290: ...6 21 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 291: ...6 22 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 292: ...6 23 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Page 293: ...6 24 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
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Page 348: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Page 352: ...7 11 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Page 363: ...MEMO ...
Page 495: ...9 116 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 557: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO ...
Page 689: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 751: ...Appendix 2 MELSEC Q APPENDICES MEMO ...