204
6 INTER-MODULE SYNCHRONIZATION FUNCTION (SIMULTANEOUS START OF MULTIPLE MODULES)
6.1 Control in Pre-analysis Mode
The following table lists the time of t1 and t2 described in the control example.
t1 indicates the analysis time of the positioning data. t2 indicates the positioning start setup time to start pulse output at the
same timing of the inter-module synchronization cycle. The positioning start setup time requires 0.1ms. Adjust the
synchronous interrupt program so that the following condition is satisfied.
• Synchronous interrupt program < (Inter-module synchronization cycle - 0.1ms)
For the synchronous interrupt program, refer to the following.
MELSEC iQ-R Inter-Module Synchronization Function Reference Manual
Example of automatic deceleration and stop control
The following figure shows an example of automatic deceleration and stop control in the pre-analysis mode.
t1
t2
0.88 to 1.77ms
0.1ms or more and within the inter-module synchronization cycle
(1) Even when the same values are set in [Da.6] Positioning address/movement amount and [Da.8] Command speed among the modules and pulse output
has started at the same inter-module synchronization cycle, the timing for automatic deceleration or stop of the positioning control may differ because each
RD75 operates independently.
t
(1)
v
Md.26
t
v
Md.26
Positioning start signal
[Y10, Y11, Y12, Y13]
Positioning control
RD75
The first
module
RD75
The second
module
BUSY signal
[XC, XD, XE, XF]
Axis operation status
Standby
Position control
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Positioning start signal
[Y10, Y11, Y12, Y13]
Positioning control
BUSY signal
[XC, XD, XE, XF]
Axis operation status
Standby
Position control
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
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 ...
Страница 597: ......