APPENDICES
Appendix 1 Module Label
549
A
■
Data type
The data type indicates the size of a buffer memory area. The following shows the classification.
■
_D
_D indicates that the module label is for direct access. When _D is not described, it indicates that the label is for auto refresh.
The following shows the differences between auto refresh and direct access.
Data Type
Description
u
Word [Unsigned]/Bit String [16-bit]
w
Word [Signed]
ud
Double Word [Unsigned]/Bit String [32-bit]
d
Double Word [Signed]
Type
Description
Access timing
Example
Auto refresh
Values that has been read from or written to module labels are
applied to the module in a batch at auto refresh. The execution
time of a program can be shortened. To use auto refresh, "Target"
must be set to "Module Label" in "Refresh Setting" of "Module
Parameter".
At auto refresh
RD75_1.stnAxisMonitorData
_Axis[0].dCurrentFeedValue
Direct access
Values that has been read from or written to module labels are
immediately applied to the module. The execution time is longer
than the one at auto refresh, but the responsiveness is high.
At reading/writing data from/
to the module label
RD75_1.stnAxisMonitorData
_Axis_D[0].dCurrentFeedVal
ue_D
Содержание MELSEC iQ-R RD75P4
Страница 1: ...MELSEC iQ R Positioning Module User s Manual Application RD75P2 RD75P4 RD75D2 RD75D4 ...
Страница 2: ......
Страница 13: ...11 MEMO ...
Страница 19: ...17 CONTENTS INDEX 588 REVISIONS 592 WARRANTY 593 TRADEMARKS 594 ...
Страница 498: ...496 13 PROGRAMMING 13 2 List of Labels Used ...
Страница 503: ...13 PROGRAMMING 13 4 Program Example 501 13 ...
Страница 511: ...13 PROGRAMMING 13 4 Program Example 509 13 Torque change program Step operation program Skip program ...
Страница 512: ...510 13 PROGRAMMING 13 4 Program Example Teaching program Continuous operation interrupt program ...
Страница 513: ...13 PROGRAMMING 13 4 Program Example 511 13 Target position change program Absolute position restoration program ...
Страница 514: ...512 13 PROGRAMMING 13 4 Program Example Restart program Parameter data initialization program ...
Страница 515: ...13 PROGRAMMING 13 4 Program Example 513 13 Flash ROM write program Error reset program ...
Страница 516: ...514 13 PROGRAMMING 13 4 Program Example Stop program ...
Страница 565: ...APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted 563 A ...
Страница 568: ...566 APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted Common program ...
Страница 584: ...582 APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted Restart program ...
Страница 587: ...APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted 585 A Stop program ...
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