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FUNCTIONS
4.2 Transient Transmission Function
4.2.1 List of dedicated instructions and transient transmission range
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By [Communication test] in GX Developer, whether routing of transient
transmission can be correctly performed between the own station and a
communication target can be checked.
Section 5.7.1 Communication test
(2) CC-Link dedicated instruction list and transient transmission range
(a) CC-Link dedicated instruction list
The CC-Link dedicated instructions that can be used for the CC-Link IE controller
network module are listed below.
For more information, refer to the following.
CHAPTER 9 DEDICATED INSTRUCTIONS
* 1 Check the serial No. and software version for applicability.
Appendix 3 Functional Upgrade of CC-Link IE controller network
* 2 Cannot be used if the own station is a safety CPU.
* 3 Cannot be used if the own station or target station is a safety CPU.
(b) Transient transmission range of a CC-Link dedicated instruction
Communications are available with all stations on the same network, but not
available with stations on other networks.
Table 4.13 CC-Link dedicated instruction list
Instruction *1
Description
Target network
Target
(another station)
RIRD
Reads the specified points of data from the target station's device.
*2
CC-Link IE controller
network
CC-Link IE controller
network compatible
device
RIWT
Writes the specified points of data to the target station's device.
*3
CC-Link IE controller
network
CC-Link IE controller
network compatible
device
RIRD
Device
Send buffer
CPU module
2594
2594
CPU module
CC-Link IE controller
network module
CC-Link IE controller
network module
Device
Receive buffer
Command
RIWT
Send buffer
Device
CPU module
Command
2594
CPU module
CC-Link IE controller
network module
CC-Link IE controller
network module
Receive buffer
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