Mitsubishi Electric MELSEC-Q Series User Manual page 52

(3) Storage locations of RX, RY, RWr, and RWw
The storage locations change depending on the number of occupied stations and expanded cyclic setting in slave
stations. The storage locations for each station can be checked using Slave station offset, size information
(Un\G992 to Un\G1503). (
● Local station
Data stored in RX, RY, RWr, and RWw in the local station side are stored in a remote net Ver.1 mode area when the
master station is in the remote net Ver.2 mode and the local station is in the remote net Ver.1 mode. (
Section 3.6.3 (2))
Four points are occupied per station for RWr and RWr in a remote I/O station. (Buffer memory areas do not move over.)
(4) Precautions
(a) When changed from the remote net Ver.1 mode
In the remote net Ver.2 mode, zero points are assigned to RWr and RWw in a remote I/O station. (Buffer
memory areas move over.)
The assignment of the station numbers for stations after the remote I/O station changes; therefore, change the
program if required.
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Page 335, Appendix 2 (4))
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