Mitsubishi Electric MELSEC-Q Series User Manual page 124

Data link status
When a "Data Link Faulty
communication Station Setting" of
failure (such as a programming
power off) occurs tool (for master
in a local station station setting)
*1 If parameter settings have been configured using dedicated instructions, the data is held.
If parameter settings have been configured using a programming tool, the data is cleared when Y is set to the refresh
device of the remote output (RY). The data is held or cleared according to the parameter settings when the device other
than Y is set.
*2 When Y is set to the refresh device of the remote output (RY) in the local station that has stopped, only the receive area from
the stopped local station is cleared. The data is held or cleared according to the parameter settings when the device other
than Y is set.
The operations continue for the receive areas from other stations.
122
Master station, standby master station (operating as a
Remote input
(RX)
Clears the receive
area from the
local station
Clear
having a
communication
failure.
Holds the receive
area from the
local station
Hold
having a
communication
failure.
master station)
Remote Remote
output register
(RY) (RWw)
Holds the
receive area
from the local
Continue Continue
station having a
communication
failure.
Remote I/O station
Remote
register Input
(RWr)
Continue
(Not affected
by the
communication
status of the
local station.)
Output
Continue
(Not affected
by the
communication
status of the
local station.)