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MELSEC-QnA
15 FUNCTIONS (FUNCTION VERSION B OR LATER)
15.11 Monitor/ Diagnosis Functions
Line monitoring (of host or other stations) and device monitoring are feasible from a
peripheral device.
15.11.1 Line monitor (host station)
Monitors items such as the data link status of the host station (connected to the
peripheral device).
For the operation, refer to the SW
IVD-GPPQ/SW NX-GPPQ Operation Manual
(Online) /GX Developer.
1
Host station
Indicates the type of connected station from master, standby master and local
stations.
The station number is also indicated for local station.
2
Data link startup status
Data link startup status is displayed.
3
Error status
Line status is displayed. ("Normal" when normal, error name when error.)
4
Link scan time
Indicates the maximum, minimum and current values of link scan time.
15.11.2 Line monitor (other stations)
Monitors items such as the data link status of the host station (connected to the
peripheral device).
For the operation, refer to the SW
IVD-GPPQ/SW NX-GPPQ Operation Manual
(Online) /GX Developer.
1
Station
Head number of each station is displayed.
2
Reserved station setting
Indicates whether reserved station is set or not if parameters are set from a
peripheral device.
"
": Reserved stations set
" ": No reserved station set
3
Error invalid station setting
Indicates whether error invalid station is set or not if parameters are set from a
peripheral device.
"
": Error invalid stations set
" ": No error invalid station set
4
Station type
Indicates the station type as shown below if parameters are set from a peripheral
device.
"Local": Local station
"Standby": Standby master station
"I/O": Remote I/O station
"Device": Remote device station
5
Number of occupied stations
Indicates number of occupied stations if parameters are set from a peripheral
device.
6
Status
Indicates data link status.
7
Transient error
Indicates existence of error during transient transmission.
"
": Error
" ": No error