25
CHAPTER 3 SPECIFICATIONS
3
3.
2 Per
form
ance Spec
ificat
io
ns
3.2
Performance Specifications
Item
Specifications
SSCNET III/H
Maximum link
points per
network
RWr, RX
256 bytes in total
RWw, RY
256 bytes in total
Maximum link
points per station
RWr, RX
64 bytes in total
RWw, RY
64 bytes in total
Communication speed
150Mbps
Maximum
connectable
stations per
network
Communication cycle:
888
s
4 stations
Communication cycle:
444
s
2 stations
Communication cycle:
222
s
1 station
Connection cable
SSCNET III cable (optical fiber cable)
(
User's manual for the Motion controller used)
Maximum station-to-station distance
POF type: 20m
H-PCF type: 50m
Connection method
Daisy chain connection (Regenerative relay system with a servo amplifier)
Transmission system
Full-duplex communication (because of the separation of the channels for sending and
receiving)
Encoding method
8B10B + scramble
Transmission format
Original to SSCNET III/H
Synchronization method
Synchronization of the control cycle and communication cycle that synchronize with the
data transmission of the Motion controller
Communication cycle
222
s/444
s/888
s
Error control system
CRC
Summary of Contents for MELSEC-L SSCNETIII/H
Page 1: ...MELSEC L SSCNET H Head Module User s Manual LJ72MS15 ...
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Page 21: ...19 CHAPTER 1 HEAD MODULE 1 Memo ...
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Page 125: ...123 APPENDICES A Appendix 7 Special Register SD List Memo ...
Page 137: ...135 APPENDICES A Appendix 9 General Safety Requirements Memo ...
Page 141: ...139 APPENDICES A Appendix 11 Processing Time Memo ...
Page 145: ...143 APPENDICES A Appendix 12 Checking Serial Number and Function Version Memo ...
Page 147: ...145 APPENDICES A Appendix 13 External Dimensions Memo ...
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