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(2) CC-Link dedicated instructions
These instructions are used for transient transmission with CC-Link IE Field Network-compliant devices.
(a) List of dedicated instructions
Instruction
Reads the specified points of data from the target station device.
CPU module
Command
RIRD
RIRD
*1
Device
2594
Writes the specified points of data to the target station device.
CPU module
Command
RIWT
RIWT
*1*2
*1
The instruction cannot be executed to an intelligent device station from a local station. Execute it from a master station.
*2
Data cannot be written when the target station is the QSCPU.
(b) Transient transmission range of CC-Link dedicated instructions
It is possible to communicate with all stations in the same network.
Communication is not available with stations in other networks.
(3) Another dedicated instruction
The following instruction is used to set parameters for the master/local module of the own station.
(a) List of dedicated instructions
Instruction
Sets parameters for the master/local module.
CCPASET
Sets a station number for a local station.
*1
UINI
*1
Before executing the UINI instruction, check the versions of the CPU module, master/local module, and GX Works2.
(
Page 546, Appendix 8)
(b) Transient transmission range of the dedicated instruction
Only the master/local module of the own station can be accessed.
Description
Master/local module
Master/local module
Send
buffer
Receive
buffer
Master/local module
Master/local module
Send
buffer
Receive
buffer
Description
CPU module
Master/local module
Command
CCPASET
Parameter setting
CPU module
Local station
Command
UINI
Station number
setting
CHAPTER 10 DEDICATED INSTRUCTIONS
Target network
CPU module
Device
CC-Link IE Field
Network
2594
CPU module
Device
CC-Link IE Field
Network
2594
Target network
CC-Link IE Field
Network
CC-Link IE Field
Network
10
Target station
(other station)
CC-Link IE Field
Network compliant
devices (including
intelligent device
stations)
CC-Link IE Field
Network compliant
devices
(including intelligent
device stations)
Target station
(other station)
Access to other
stations is not
available.
(Own station only)
Access to other
stations is not
available.
(Own station only)
239
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Troubleshooting
