Appendix 4 List Of Link Special Register (Sw) Areas - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 4
The link special register (SW) stores the information during data link as a numerical value. Error locations and causes can be
checked by using or monitoring the link special register (SW) in programs.
Application of the link special register (SW)
By using link special register (SW), the status of MELSECNET/H Network can be checked from HMI (Human Machine
Interfaces) as well as the engineering tool.
Link refresh of the link special register (SW)
To use the link special register (SW), set them in "Link Refresh Settings" in "Basic Settings" so that link refresh is performed
for the devices or labels of the CPU module. (Page 61 Link Refresh Settings)
Range where data are stored by users and range where data are stored by the system
The following ranges correspond to when the link special register (SW) areas are assigned from SW0000 to SW01FF.
• Stored by users: SW0000 to SW001F
• Stored by the system: SW0020 to SW01FF
List of Link Special Register (SW) Areas

Appendix 4 List of Link Special Register (SW) Areas

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