Mitsubishi Electric Q80BD-J61BT11N, User Manual

Page: 135 / 362

6 - 11 6 - 11
MELSEC
6 PARAMETER SETTINGS
6.5 Status Difference Between a Master Station and a Slave Station at an Error
The status at an error occurrence differs depending on the settings of "Input for Err.
Sta" in "Operational settings" of Parameter.
When configuring the settings, consider the station status at errors listed below.
(1) Status of a master station and remote I/O station
The following table shows the status of the master station and remote I/O
stations when an error occurred.
Data link status
Master station Remote I/O station
Remote input
(RX)
Remote
output
(RY)
Remote
register
(RWw)
Remote register
(RWr)
Input Output
When the local station's programmable controller CPU is
stopped
(data link continues)
All points are set to off
for only the receive
area from the stopped
local station
1
Continue Continue Continue Continue Continue
When data link for
the entire system is
stopped
"Input for Err. Sta." of the
CC-Link Ver.2 utility
(for master station setting)
Clear Clear
— — Latch —
All points
off
Hold Latch
When a
communication error
(power off, etc.)
occurs in a remote
I/O station
"Input for Err. Sta." of the
CC-Link Ver.2 utility
(for master station setting)
Clear
Clears the receive
area from the remote
I/O station having a
communication error
Continue Continue Continue
—
All points
off
Hold
Retains the receive
area from the remote
I/O station having a
communication error
When a
communication error
(power off, etc.)
occurs in a remote
device station
"Input for Err. Sta." of the
CC-Link Ver.2 utility
(for master station setting)
Clear
Clears the receive
area from the remote
device station having
a communication error
Continue Continue
Retains the
receive area
from the remote
device station
having a
communication
error
Continue Continue
Hold
Retains the receive
area from the remote
device station having
a communication error
When a
communication error
(power off, etc.)
occurs in a local
station
"Input for Err. Sta." of the
CC-Link Ver.2 utility
(for master station setting)
Clear
Clears the receive
area from the local
station having a
communication error
Continue Continue
Retains the
receive area
from the local
station having a
communication
error
Continue Continue
Hold
Retains the receive
area from the local
station having a
communication error
1: This is because Yn0 (refresh direction) is turned off.