App
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Appendix 2 Link Special Register (SW) List
APPENDICES
Appendix 2 Link Special Register (SW) List
The link special register (SW) stores information at data link in a numerical value.
The faulty part or cause can be checked by using the link special register (SW) in a
sequence program or monitoring it.
(1) Application of link special register (SW)
The status of the CC-Link IE controller network module can be checked with other
than GX Developer, using link special register (SW).
(2) Mounting multiple network modules
The link special register (SW) of each network module is refreshed by the link special
register (SW) of the CPU module shown below when the refresh parameters of each
network module remain default.
(3) Range turned ON/OFF by user and range turned ON/OFF by system
The following shows the range when the assignment range of link special register
(SW) is SW0000 to SW01FF.
• Range turned ON/OFF by user: SW0000 to SW001F
• Range turned ON/OFF by system: SW0020 to SW01FF
(4) Link special register (SW) list
Table App.4 is a list of link special registers (SW) when they are assigned to SW0000
to SW01FF.
POINT
(1) Do not write data to the area of the No. which does not exist in the link special
register (SW) list.
Writing data to the area of the No. which does not exist in the list may cause
malfunction of the programmable controller system.
(2) For how to use link special register (SW), refer to the following.
Section 8.3 Using Link Special Relay (SB) and Link Special Register (SW)
Table App.3 Mounting multiple network modules
Item
Module 1
Module 2
Module 3
Module 4
Device No.
SW0000 to SW01FF
SW0200 to SW03FF
SW0400 to SW05FF
SW0600 to SW07FF
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