Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 372

7 APPLICATION FUNCTIONS
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POINT
(1) Communication by LX/LY is not supported by the pairing setting.
(2) Set the refresh target devices of LB/LW set in the host station send range of the
redundant system as tracking devices. For details, refer to the QnPRHCPU User's
Manual (Redundant System).
(3) When tracking a link special relay and a link special register, exercise care not to
transfer the link special relay (SB0020 to SB01FF) and the link special register
(SW0020 to SW01FF) in use by the system.
MELSEC-Q
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