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Chapter 1 Product Outline
(d) Continuous processing of multiple positioning data
Multiple positioning data can be processed continuously within one
positioning operation.
Continuous positioning control can be executed over multiple blocks, where
each block consists of multiple positioning data.
This reduces the number of executions of positioning, management of
execution status, and others.
(e) Acceleration/deceleration
processing
Two acceleration/deceleration processing methods are provided:
trapezoidal acceleration/deceleration and S-curve acceleration/deceleration.
The acceleration/deceleration curve can be selected according to the
machine characteristic.
(3) Synchronous
control
The synchronous control and electronic cam control can be performed.
(4) Mark detection function
The mark detection to latch any data by the external command signal [DI1 to DI4]
can be performed.
(5) High
maintainability
Maintainability is enhanced in the LD77MS.
(a) Data retention without battery
Data such as the positioning data and parameters can be stored in the flash
ROM inside the LD77MS. This feature allows the module retain the data
without a battery.
(b) Module error collection function
The LD77MS notifies error details to the PLC CPU when an error occurs.
Storing the error information in the PLC CPU allows the user to check the
error from the programming tool even after the module is powered off or
reset.
(6) Support of intelligent function module dedicated instructions
Dedicated instructions such as the positioning start instruction (Axis 1 to Axis 4)
and teaching instruction (Axis 1 to Axis 4) are provided.
The use of such dedicated instructions simplifies programs.
The dedicated instructions are fully compatible with the LD77MH.
Summary of Contents for MELSEC-L Series
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Page 70: ...2 10 Chapter 2 System Configuration MEMO ...
Page 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
Page 103: ...3 33 Chapter 3 Specifications and Functions MEMO ...
Page 107: ...3 37 Chapter 3 Specifications and Functions MEMO ...
Page 111: ...3 41 Chapter 3 Specifications and Functions MEMO ...
Page 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Page 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Page 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Page 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Page 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
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Page 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Page 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Page 656: ...11 32 Chapter 11 Manual Control MEMO ...
Page 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Page 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Page 866: ...14 68 Chapter 14 Common Functions MEMO ...
Page 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Page 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Page 1036: ...Appendix 88 Appendices MEMO ...
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