1 FUNCTIONS
1.1 Cyclic Transmission
29
1
Interlink transmission
This function transfers data in the link devices of the master station or submaster station to another network module on a relay
station.
Setting method
Set interlink transmission in "Interlink Transmission Settings" in "Application Settings". (
Page 147 Interlink Transmission
Precautions
For the precautions, refer to the following.
Page 147 Interlink Transmission Settings
Sequence scan synchronization specification
This function selects whether link scan is set to asynchronous or synchronous with the sequence scan of the CPU module.
Difference between asynchronous and synchronous settings
■
Asynchronous setting
Link scan is performed asynchronously with the sequence scan of the CPU module. Select this item to shorten input
transmission delay time when sequence scan takes much more time than link scan. Note that output transmission delay time
will become longer.
■
Synchronous setting
Link scan is performed synchronously with the sequence scan of the CPU module. Select this item in the following cases:
• To shorten output transmission delay time (Note that when sequence scan takes much more time than link scan, input
transmission delay time will become longer.)
• To keep transmission delay time constant (In "RAS Setting" of "CPU parameter", "Constant Scan Setting" must be set, and
the sequence scan must be set to be performed at the specified intervals.)
RX
RY
LB
Relay station
Interlink
transmissions
Network
module
Master/local
module
Network No.1
Network No.2
RX
RY
LB
Data of network No.2
Data of network No.1
Summary of Contents for MELSEC iQ-R04ENCPU
Page 2: ......
Page 61: ...1 FUNCTIONS 1 3 IP Packet Transfer Function 59 1 ...
Page 385: ...383 I Transient transmission 15 ...
Page 389: ......