7 - 7
Chapter 7 Memory Configuration and Data Process
7.2 Data transmission process
The data is transmitted between the memories of Simple Motion module with steps (1)
to (10) shown below.
: The data transmission patterns correspond to the numbers (1) to (10) in the
following drawings.
LD77MS
PLC CPU
Servo amplifier
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to 600)
Block start data area
(No.7000 to 7004)
Flash ROM
(1) Power supply ON/
PLC CPU reset
Parameter area (c)
Servo parameter area
Internal memory
(nonvolatile)
Buffer memory/Internal memory
Parameter area (a)
Parameter area (b)
Positioning data area
(No.1 to 600)
Block start data area
(No.7000 to 7004)
Monitor data area
Control data area
Servo parameter area
(2) TO command
(4) FROM command
(5) Servo amplifier data read
(2) Valid upon execution of
the TO instruction.
Parameter area (b)
Parameter area (a)
(3) PLC READY signal
[Y0] OFF ON: Valid
Parameter area (c)
(1) Power supply ON/
PLC CPU reset: Valid
Parameter area (c)
Summary of Contents for MELSEC-L Series
Page 2: ......
Page 30: ...MEMO ...
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 ...
Page 440: ...MEMO ...
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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