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3. ACCESS RANGE FOR MONITORING
3.2 Access Range for Monitoring when Using Ethernet Connection
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3.2 Access Range for Monitoring when Using Ethernet 
Connection
Access range
(1) MITSUBISHI PLC
The PLC can be monitored via the Ethernet module set in the Ethernet setting on GT Designer3.
The GOT can access CPUs on another Ethernet, MELSECNET/H, MELSECNET/10, CC-Link IE Controller 
Network, or CC-Link field network via the QCPU or QnACPU.
However, the GOT cannot monitor the CNC C70 on other networks.
(The GOT cannot monitor the AnNCPU on the CC-Link IE Controller Network, MELSECNET/H, and 
MELSECNET/10 networks)
For monitoring CPUs on the MELSECNET/H, MELSECNET/10, CC-Link IE Controller Network, and CC-Link 
field network, set the routing parameter.
For the routing parameter setting, refer to the following manuals.
• Routing parameter setting of the GOT
• Routing parameter setting for accessing CPUs on the MELSECNET/H network system, or MELSECNET/10 
network system
Q corresponding MELSECNET/H Network System Reference Manual (PLC to PLC network)
• Routing parameter setting for accessing CPUs on the CC-Link IE Controller Network
CC-Link IE Controller Network Reference Manual
• Routing parameter setting for accessing CPUs on the CC-Link IE Field Network
MELSEC-Q CC-Link IE Field Network Master/Local Module User's Manual
CC-Link IE Field Network Ethernet Adapter Module User's Manual
Monitoring via the MELSECNET (II) or MELSECNET/B network cannot be performed.
POINT
POINT
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(1) Host in the Ethernet connection
While the GOT is handled as the host in MELSECNET/H, MELSECNET/10 or CC-Link connection, the station 
(Ethernet module) set as the host in the Ethernet setting of GT Designer3 is handled as the host in Ethernet 
connection.
(2) Precautions when using the QCPU redundant system
When monitoring other networks, do not set the QCPU redundant system as a relay station.
If the QCPU redundant system is set as a relay station, the GOT cannot switch the monitoring target 
automatically when the system is switched.
(A timeout error occurs due to failed monitoring)
Various settings
For the Ethernet setting by GT Designer3, refer to the following.
MELSECNET/H etc.
GOT
Gateway
(Router etc.)
Hub etc.