Mitsubishi Electric MELSEC iQ-R-R04CPU - Data Register (D); Link Register (W); Link Special Register (SW)

21 DEVICES
21.3 User Device
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21
Data register (D)
This device can store numerical values.
Link register (W)
This device is used as a CPU module side device when refreshing word data between the network module, such as the CC-
Link IE Controller Network module and the CPU module.
Refreshing network modules using link register
Data are transferred/received between the link register (W) within the CPU module and the link register (LW) of the network
module, such as the CC-Link IE Controller Network module. The refresh range is specified using parameters on the network
module. The part which is not used for refreshing can be used for other applications.
Link special register (SW)
Word data information on the communication status and error detection status of a network, such as CC-Link IE Controller
Network, are output into the link special register (J\SW) on the network. The link special register (SW) is a device for using
as a refreshing target of link special registers in the network. The part which is not used for refreshing can be used for other
applications.
(1) The network status is checked.
SW0A0.3
SW
SW
SW00A7
SW00A0
SW00A7
SW00A0
(1)
Used in a program.
CC-Link
IE Controller Network module
Refresh
Stores the baton pass
status of each station.
CPU module