10.5 Precautions
Network configuration
Use the MELSECNET/10 mode of MELSECNET/H (PLC to PLC network) or MELSECNET/10 (PLC to PLC network) to configure a network including the GOT.
(1)The following networks including the GOT cannot be configured.
•MELSECNET/10 (Remote I/O network)
•MELSECNET/H (Remote I/O network)
(2)When configuring the network (MELSECNET/H (PLC to PLC network) including the GOT, refer to the following.
9. MELSECNET/H CONNECTION (PLC TO PLC NETWORK)
Monitoring range
Only PLC CPU of the same networks No. can be monitored in GOT.
For details, refer to the following manual.
GT Designer3 Version
Screen Design Manual
Starting GOT with MELSECNET/10 connection
With the MESLSECNET/10 connection, the data link starts approximately 10 seconds after the GOT starts.
When a network error occurs in the system alarm
When a system alarm regarding a network error occurs with the MELSECNET/10 connection, the system alarm is kept displaying on the GOT even though the error factor is removed.
To cancel the system alarm display, restart the GOT.
Connection in the multiple CPU system
When the GOT is connected to multiple CPU system, the following time is taken until when the PLC runs.
QCPU (Q mode), motion controller CPU (Q series): 10 seconds or more
MELDAS C70: 18 seconds or more
When the GOT starts before the PLC runs, a system alarm occurs.Adjust the opening screen time in the GOT setup so that no system alarm occurs.
GT Designer3 Version
Screen Design Manual
Connection to QCPU (Q mode)
Use function version B or later of the MELSECNET/H network module and QCPU (Q mode).
Connection to Q17nDCPU, Q170MCPU, CNC C70,
The Q17nDCPU, Q170MCPU, CNC C70 and CRnQ- 700 are applicable to the MELSECNET/H connection (PLC to PLC network) only.
For connecting the GOT to the MELSECNET/10 network system (PLC to PLC network), set the MELSECNET/H network system (PLC to PLC network) to the MELSECNET/10 mode.
Connection to QSCPU
The GOT can only read device data and sequence programs by the ladder monitor function in the QSCPU.
The GOT cannot write any data to the QSCPU.
Connection to Q170MCPU
Set [CPU No.] to "2" in the device setting to monitor the device of the Motion CPU area (CPU No.2).
When the CPU No. is set to "0" or "1", the device on the PLC CPU area (CPU No.1) is monitored.
When the CPU No. is set to the number other than "0" to "2", a communication error occurs and the monitoring cannot be executed.
For setting the CPU No., refer to the following manual.
GT Designer3 Version
Screen Design Manual
Example) Setting dialog box of the bit device
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| 10.5 Precautions |