FPΣ
10.3 Monitoring When a PLC Link is Being Used
10 - 17
10.3 Monitoring When a PLC Link is Being Used
10.3.1 Monitoring Using Relays
When using a PLC link, the operation status of the links can be monitored using the
following relays.
Transmission assurance relay R9060 to R906F (correspond to station No.1 to 16)
If the transmission data from a different station is being used with the various PLCs,
check to make sure the transmission assurance relay for the target station is on before
using the data.
Relay No.
R9060 R9061 R9062 R9063 R9064 R9065 R9066 R9067 R9068 R9069 R906A R906B R906C R906D R906E R906F
StationNo.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Conditions
for on/off
ON: When the PLC link is normal
OFF: If transmission is stopped, a problem has occurred, or a PLC link is not being used
Operation mode relay R9070 to R907F (correspond to station No.1 to 16)
The PLC operation modes (RUN/PROG.) of other stations can be ascertained for any
given PLC.
Relay No.
R9070 R9071 R9072 R9073 R9074 R9075 R9076 R9077 R9078 R9079 R907A R907B R907C R907D R907E R907F
StationNo.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Conditions
for on/off
ON: When the unit is in the RUN mode
OFF: When the unit is in the PROG. mode
PLC link transmission error relay R9050
This goes on if a problem is detected during transmission.
Relay No. R9050
StationNo.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Conditions
for on/off
ON: When a transmission error has occurred in the PLC link, or when there is an error in the setting for
the PLC link area
OFF: When there are no transmission errors
Monitoring the PLC link status
The PLC link status items, such as the transmission cycle time and the number of
times that errors have occurred, can be monitored by pressing down the PLC link
switch on the FPWIN GR Status Monitor screen.
Tip
Note
It is not possible to carry out remote programming of other linked
PLCs using the programming tool.
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