Mitsubishi Electric MELSEC iQ-R Series Reference Manual page 35

Network synchronous communication with slave station
Using the CC-Link IE Field Network synchronous communication function, another slave station connected in the same
network can be operated in synchronization with the inter-module synchronization cycle.
Master station
Inter-module synchronization cycle
Inter-module synchronization
cycle for the master station
CPU module on the master station
Input
Inter-module synchronous
refresh
interrupt program
Slave station No.1
Slave station No.2
Slave station No.3
• Refer to the following for details on the CC-Link IE Field Network synchronous communication function with
the local station.
Page 31 Master station and local station network synchronous communication
• Refer to the following for details on the CC-Link IE Field Network synchronous communication function with
the slave station.
 Manual for each slave station
• Refer to the following for details on the CC-Link IE Field Network synchronous communication function with
the remote head module.
Page 25 Remote head module
• If a local station and a slave station other than the remote head module is disconnected, the synchronous
signal cannot be received from the master station and the slave station waits for synchronization. After that,
when the slave station is returned, the synchronization automatically restarts.
Supporting Network
synchronous
communication function
Slave station No.1
Interrupt Output Input Interrupt Output
program refresh refresh program refresh
Operate at the same timing of the
inter-module synchronization cycle
for the master station.
Supporting Network Not supporting Network
synchronous synchronous
communication function communication function
Slave station No.2 Slave station No.3
Input Interrupt Output Input
refresh program refresh refresh
Operate at the different timing of the
inter-module synchronization cycle
for the master station.
5.1 Fixed Cycle Synchronization Function
Interrupt Output
program refresh
5 FUNCTION
5
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