3 - 17
Chapter 3 Specifications and Functions
(2) LD77MS4
Signal direction: LD77MS4
PLC CPU
Signal direction: PLC CPU
LD77MS4
Device No.
Signal name
Device No.
Signal name
X0 READY Y0
PLC
READY
X1
Synchronization flag
Y1
All axis servo ON
X2
Use prohibited
Y2
Use prohibited
X3 Y3
X4 Axis
1
M code ON
Y4 Axis
1
Axis stop
X5 Axis
2
Y5 Axis
2
X6 Axis
3
Y6 Axis
3
X7 Axis
4
Y7 Axis
4
X8 Axis
1
Error detection
Y8
Axis 1
Forward run JOG start
X9
Axis 2
Y9
Reverse run JOG start
XA Axis
3
YA
Axis 2
Forward run JOG start
XB
Axis 4
YB
Reverse run JOG start
XC Axis
1
BUSY
YC
Axis 3
Forward run JOG start
XD
Axis 2
YD
Reverse run JOG start
XE Axis
3
YE
Axis 4
Forward run JOG start
XF
Axis 4
YF
Reverse run JOG start
X10 Axis
1
Start complete
Y10 Axis
1
Positioning start
X11 Axis
2
Y11 Axis
2
X12 Axis
3
Y12 Axis
3
X13 Axis
4
Y13 Axis
4
X14 Axis
1
Positioning complete
Y14 Axis
1
Execution prohibition flag
X15 Axis
2
Y15 Axis
2
X16 Axis
3
Y16 Axis
3
X17 Axis
4
Y17 Axis
4
X18
Use prohibited
Y18
Use prohibited
X19 Y19
X1A Y1A
X1B Y1B
X1C Y1C
X1D Y1D
X1E Y1E
X1F Y1F
Important
[Y2, Y3], [Y18 to Y1F], [X2, X3], and [X18 to X1F] are used by the system, and cannot be
used by the user.
If these devices are used, the operation of the LD77MS4 will not be guaranteed.
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 ...
Page 1039: ......