Mitsubishi QJ71GP21-SX, Reference Manual

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4
FUNCTIONS
4.1 Cyclic Transmission Function
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CHAPTER4 FUNCTIONS
This chapter describes the functions of the CC-Link IE controller network module.
4.1 Cyclic Transmission Function
Using the link devices (LB/LW/LX/LY) of the CC-Link IE controller network module, data
can be transferred periodically between stations on the same network.
(1) Processing of cyclic transmission
The following is an example where link relay data (B) of a CPU module are sent to a
link relay (B) of a CPU module on another station.
1) B0 of the sending-side CPU module turns ON.
2) The B0 information is stored in the link device (LB) of the CC-Link IE controller
network module by link refresh.
3) The B0 information of the link device (B) is stored in the link device (LB) of the
receiving-side CC-Link IE controller network module by a link scan.
4) The B0 information is stored in the device (B) of the CPU module by link
refresh.
5) B0 of the receiving-side CPU module turns ON.
* 1 Set it with refresh parameters. ( Section 6.4 Refresh Parameters)
* 2 Set it in the network range assignment of the control station. ( Section 6.3 Network Range
Assignment)
Figure 4.1 Processing of cyclic transmission
Link
scan
3)
Sending side
Sequence scan Sequence scan Sequence scan Sequence scan Sequence scan Sequence scan
Device
2)
Link refresh
*1
END E
N
D
END
END E
N
D
END
CPU module
B
Link
device
*2
LB
CC-Link IE controller
network module
Receiving side
Device
4)
Link refresh
*1
CPU module
B
Link
device
*2
LB
X0
B0
1)
B0
Y10
5)