452
9.2.23
JUMP instruction
The JUMP instruction is used to control the operation so it jumps to a positioning data No. set in the positioning data
during "continuous positioning control" or "continuous path control".
JUMP instruction include the following two types of JUMP.
1.
Unconditional JUMP
When no execution conditions are set for the JUMP instruction (When "0" is set as the condition data No.)
2.
Conditional JUMP
When execution conditions are set for the JUMP instruction
(The conditions are set in the "condition data" used with "high-level positioning control".)
Using the JUMP instruction enables repeating of the same positioning control, or selection of positioning
data by the execution conditions during "continuous positioning control" or "continuous path control".
(1) Operation
(a) Unconditional JUMP
The JUMP instruction is unconditionally executed. The operation jumps to the positioning data No. set in
"[Da.9] Dwell time".
(b) Conditional JUMP
The block start condition data is used as the JUMP instruction execution conditions.
• When block positioning data No. 7000 to 7004 is started, each block condition data is used.
• When positioning data No. 1 to 600 is started, start block 0 condition data is used.
• When the execution conditions set in "[Da.10] M code" of the JUMP instruction have been established: the
JUMP instruction is executed to jump the operation to the positioning data No. set in "[Da.9] Dwell time".
• When the execution conditions set in "[Da.10] M code" of the JUMP instruction have not been established:
the JUMP instruction is ignored, and the next positioning data No.is executed.
(2) Restrictions
• When using a conditional JUMP instruction, establish the JUMP instruction execution conditions by the 4th
positioning data No. before the JUMP instruction positioning data No. If the JUMP instruction execution
conditions are not established by the time the 4th positioning control is carried out before the JUMP
instruction positioning data No., the operation will be processed as an operation without established JUMP
instruction execution conditions. (During execution of continuous path control/continuous positioning control,
the LD75 calculates the positioning data of the positioning data No. four items ahead of the current
positioning data.)
• Positioning control such as loops cannot be executed by conditional JUMP instructions alone until the
conditions have been established. As the target of the JUMP instruction, specify a positioning data that is
controlled by other than JUMP and NOP instructions.
Содержание MELSEC-L LD75D
Страница 1: ...MELSEC L LD75P LD75D Positioning Module User s Manual LD75P1 LD75P2 LD75P4 LD75D1 LD75D2 LD75D4 ...
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Страница 11: ...9 Memo ...
Страница 47: ...45 CHAPTER 2 SYSTEM CONFIGURATION 2 2 1 General Image of System 1 When connected to a CPU module ...
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Страница 267: ...265 CHAPTER 6 PROGRAM USED FOR POSITIONING CONTROL 6 6 4 Positioning Program Examples ...
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Страница 272: ...270 Z ABRST1 instruction execution ...
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Страница 685: ...683 APPENDICES A Appendix 1 Function Update Appendix 1 1 Function comparison Memo ...
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Страница 806: ...804 5 LD75D2 Unit mm 6 LD75D4 Unit mm 45 4 90 4 95 4 45 45 DIN rail center 45 4 90 4 95 4 45 45 DIN rail center ...
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