10 - 16
MELSEC-Q
10 HIGH-LEVEL POSITIONING CONTROL
10.3.8 Restrictions when using the NEXT start
The "NEXT start" is a instruction indicating the end of the repetitions when executing
Section 10.3.6 "Repeated start (FOR loop)" and Section 10.3.7 "Repeated start (FOR
condition)".
The following shows the restrictions when setting "6: NEXT start" in the " block start
data".
(1) The processing when "6: NEXT start" is set before execution of "4: FOR loop" or
"5: FOR condition" is the same as that for a "0: block start".
(2) Repeated processing will not be carried out if there is no "6: NEXT start"
instruction after the "4: FOR loop" or "5: FOR condition" instruction. (Note that an
"error" will not occur.)
(3) Nesting is not possible between "4: FOR loop" and "6: NEXT start", or between
"5: FOR condition" and "6: NEXT start". A warning "FOR to NEXT nest
construction" (warning code: 506) will occur if nesting is attempted.
[Operating examples without nesting structure] [Operating examples with nesting structure]
A warning will occur when starting the 4th
point "FOR".
The JUMP destination of the 7th point "NEXT"
is the 4th point. The 9th point "NEXT" is
processed as normal start.
Da.13
FOR
NEXT
FOR
NEXT
Da.13
FOR
FOR
NEXT
NEXT
Start block data
1st point
2nd point
3rd point
4th point
5th point
6th point
7th point
8th point
9th point
Special start instruction
Normal start
Normal start
Normal start
Normal start
Normal start
Start block data
1st point
2nd point
3rd point
4th point
5th point
6th point
7th point
8th point
9th point
Special start instruction
Normal start
Normal start
Normal start
Normal start
Normal start
Summary of Contents for D75D4
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 58: ...2 10 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Page 65: ...3 7 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS ...
Page 139: ...5 35 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 238: ...5 134 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 251: ...6 13 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 254: ...6 16 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 255: ...6 17 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 256: ...6 18 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 259: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 260: ...6 22 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 292: ...7 8 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Page 294: ...7 10 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Page 298: ...MEMO ...
Page 462: ...9 140 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 490: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Page 524: ...11 34 MELSEC Q 11 MANUAL CONTROL Creating the program ...
Page 666: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 675: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 716: ...15 50 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 725: ...Appendix 9 MELSEC Q APPENDICES MEMO ...
Page 878: ...Appendix 162 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Page 879: ...Appendix 163 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Page 880: ...Appendix 164 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Page 893: ...WARRANTY ...
Page 895: ......