APPX
Appendix 4 List of Link Special Relay (SB)
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Appendix 4 List of Link Special Relay (SB)
The link special relay (SB) is turned on/off depending on various factors during data link. Any error status of the data link can
be checked by using or monitoring it in the program.
Application of link special relay (SB)
By using link special relay (SB), the status of CC-Link IE TSN can be checked from HMI (Human Machine Interfaces) as well
as the engineering tool.
Refresh of link special relay (SB)
To use link special relay (SB), set them in "Refresh Settings" under "Basic Settings" so that they are refreshed to the devices
of the FX5 CPU module. ( Page 133 Refresh settings)
Ranges turned on/off by users and by the system
The following ranges correspond to when the link special relay areas (SB) are assigned from SB0000 to SB0FFF.
• Turned on/off by users: SB0000 to SB001F
• Turned on/off by the system: SB0020 to SB0FFF
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