Chapter 4 Functions; Cyclic Transmission Function - Mitsubishi Electric MELSEC Q Series Reference Manual

CHAPTER 4
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.
X0
B0
1.
CPU module
B
Sequence scan Sequence scan Sequence scan
Device
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. (
*2 Set it in the network range assignment of the control station. (
FUNCTIONS
CC-Link IE Controller
Network module
Sending side
LB
2.
Link
device
*2
Link refresh
*1
Page 204, Section 6.5)
Receiving side
LB
3.
4.
Link
Link
device
scan
Link refresh
*2
*1
Page 183, Section 6.3)

CHAPTER 4 FUNCTIONS

B0
Y10
5.
CPU module
B
Sequence scan Sequence scan Sequence scan
Device
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4