Mitsubishi Electric QJ71GF11-T2 - Chapter 1 CC-Link Ie Field Network; Data Communication; Irregular Communications (Transient Transmission); Periodic Communication (Cyclic Transmission)

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CHAPTER 1 CC-LINK IE FIELD NETWORK
1.1 CC-Link IE Field Network
CC-Link IE Field Network is a high-speed and large-capacity open field network that is based on Ethernet technology
(1000BASE-T).
(1) Data communication
High-speed and large-capacity data communication is available between a master station and slave stations on
CC-Link IE Field Network.
(a) Periodic communication (cyclic transmission)
Data is periodically communicated among stations within the same network. ( Page 123, Section 8.1)
(b) Irregular communications (transient transmission)
Data is communicated upon request. ( Page 144, Section 8.2)
Master
station
CPU module
X
Y
W
RX
RY
RWw
RWr
Local station
CPU module
Y
X
W
RY
RX
RWr
RWw
RX
RY
RWw
RWr
RX
RY
RWw
RWr
Intelligent
device station
Intelligent
device station
Master station Local stationIntelligent
device station
Intelligent
device station
Command
Instruction
Device
1234
H
Device
1234
H
CPU module CPU module
Master station Local station
Intelligent
device station
Write
request