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3. ACCESS RANGE FOR MONITORING
3.6 Connection to Remote I/O Station in MELSECNET/H Network System
3 - 21
1
PREPARATORY
PROCEDURES FOR
MONITORING
2
DEVICE RANGE
THAT CAN BE SET
3
ACCESS RANGE
FOR MONITORING
4
HOW TO MONITOR
REDUNTANT
SYSTEM
5
BUS CONNECTION
6
DIRECT
CONNECTION TO
CPU
7
COMPUTER LINK
CONNECTION
8
ETHERNET
CONNECTION
Ethernet connection
(1) Connect the GOT to the Ethernet module (QJ71E71-100, QJ71E71-B5, QJ71E71-B2, QJ71E71) mounted on
the remote I/O station.
For details of cables and others required for connecting the GOT to the Ethernet module, refer to the following.
8. ETHERNET CONNECTION
(2) Specify a type including MELSEC-Q (including multiple), or MELSEC-QnU for the controller type on GT
Designer3. Then, specify [[NW No.] (Network No. of the remote I/O network) to 1, and specify [Station No.]
(Master station) to 0.] as the monitoring target in the network setting of the device setting dialog box. (GT16,
GT15 only)
The GOT monitors stations on the MELSECNET/H network with the transient transmission.Therefore, a longer
time-lag occurs for displaying objects compared with directly monitoring the PLC CPU.
For displaying objects with a shorter time-lag, execute the cyclic transmission so that the GOT can monitor link
devices B and W of the remote I/O station.
For settings required for the PLC CPU, refer to the following manual.
Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/Q network)
(3) To monitor other networks, set the routing parameter to the GOT and PLC CPU as necessary. For routing
parameter settings of the GOT, refer to the following manual.
8. ETHERNET CONNECTION
For routing parameter settings of the PLC CPU, refer to the following manual.
Q corresponding MELSECNET/H Network System Reference Manual (PLC to PLC network)
Restrictions on connection to remote I/O station
The GOT does not allow the clock of the master station to be set in the clock setting of the utility function.
The master station clock will not change even if the clock setting is made.
Use GX Developer or a similar software to set the PLC CPU clock of the master station.