Mitsubishi Electric MELSEC-Q Series User Manual page 46

(a) Combination of the modes of a master/local module
The table below lists the combination of the modes of the master station and local station in a master/local
module.
Mode of the master station
Remote net Ver.1 mode
Remote net Ver.2 mode
Remote net additional mode
*1 In a standby master station, data link can be performed only when the mode is the same as that of the master station.
*2 Although a local station in the remote net Ver.1 mode cannot perform data link with a Ver.2-compatible slave station, the
status of the Ver.2-compatible slave station is stored in Other station data link status (SW0080 to SW0083) for the local
station as well as that for the master station. (When the master station is normally performing data link with the Ver.2-
compatible slave station, Other station data link status (SW0080 to SW0083) for the local station indicates "0: Normal".)
Note that cyclic data in the Ver.2-compatible slave station will become "0" in the local station in the remote net Ver.1
mode. Transient transmission cannot be performed due to an error such as a timeout error.
Local station Ver.2 mode
(Station No.1, the number
Master station
Ver.2 mode
Ver.2-compatible
remote output (RY)
Station No.1
Station No.2
Station No.3
Station No.4
(b) Differences in functions between the modes of a master/local module
The following table lists differences in functions between the modes of a master/local module.
Storage area for RX/RY/RWr/RWw
RWr/RWw of remote I/O stations
Zero points setting for a reserved
station
Remote I/O station points setting
*1 RWr and RWw are not used for the remote I/O net mode.
44
of occupied stations: 1)
Ver.2-compatible
remote input (RX)
Station No.1
Station No.2
Station No.3
Station No.4
Data for the station numbers 1 and 3
in the Ver.2-compatible slave station is 0.
Item
Ver.1 compatible area
4 points per station
Not available
Not available
: Data link can be performed. ×: Data link cannot be performed.
Mode of a local station
Remote net Ver.1 Remote net Ver.2
mode
*2
*2
Local station Ver.1 mode
(Station No.3, the number
(Station No.2, the number
of occupied stations: 1)
Ver.1-compatible
remote input (RX)
Station No.1
All 0
Station No.2
Station No.3
Station No.4
Mode of a master/local module
Remote net Ver.1
Remote net Ver.2
mode, remote I/O
net mode
Ver.2 compatible area
0 point (RWr and RWw
*1
move over forward.)
Available
Available
*1
Remote net additional
mode
×
Remote device station Remote device station
Ver.2-compatible Ver.1-compatible
(Station No.4, the number
of occupied stations: 1) of occupied stations: 1)
Remote output (RY)
Remote output (RY)
Remote net additional
mode
Ver.1 compatible station:
Ver.1-compatible area
Ver.2 compatible station:
Ver.2-compatible area
4 points per station
Not available
Not available
mode
×
mode