Station Status At Error Occurrence - Mitsubishi Electric L26CPU-BT User Manual

8.2.6

Station status at error occurrence

This section explains the status of each station that is set in network parameter's "PLC Down Select" and "Operation
Setting" in case of error occurrence. (Refer to
Section 8.2.5.)
(1) Status of the master station, standby master station (acting as a master
station) and remote I/O station at error occurrence
The following shows the operations of the master station, standby master station (acting as a master station) and
remote I/O station upon the occurrence of an error.
Data link status
When data link is stopped due to an error generated
by the master station programmable controller CPU
(data link continue)
When data link is stopped due to an error generated
by the local station programmable controller CPU
(data link continue)
The GX Works2 data
When data link for
link faulty station is
the entire system is
set (master station
stopped
setting)
When a
The GX Works2 data
communication error
link faulty station is
(power off, etc.)
set (master station
occurs in a remote
setting)
I/O station
When a
The GX Works2 data
communication error
link faulty station is
(power off, etc.)
set (master station
occurs in a remote
setting)
device station
136
Page 132, Section 8.2.3, Page 133, Section 8.2.4 and Page 134,
Master station, standby master station (acting as a
master station)
Remote
Remote
output
input (RX)
(RY)
*1
Continue
*2
Continue
Clear Clear
Undefined
Hold Hold
Clears the
receive area
from the
remote I/O
Clear
station having
a
communication
error
Continue
Retains the
receive area
from the
Hold remote I/O
station with a
communication
error
Clears the
receive area
from the
Clear remote device
station with a
communication
error
Continue
Retains the
receive area
from the
Hold remote device
station with a
communication
error.
Remote Remote
register register
(RWw) (RWr)
Continue Hold
Continue Continue
Undefined Hold
Continues Continues
operation of operation of
areas other areas other
than the than the
remote I/O remote I/O
station station
Retains the
receive area
from the
Continue remote device
station with a
communication
error
Remote I/O station
Input Output
*1
Continue
Continue Continue
By external
All points OFF
signals
By external
All points OFF
signals
Continue Continue
(Not affected (Not affected
by the by the
communication communication
status of the status of the
remote device remote device
station) station)