Precautions - Mitsubishi Electric GOT2000 Series Connection Manual

6.6

Precautions

■1. Connection to FXCPU
(1) When connecting to FX3 series
When the keyword of FXCPU (FX3 series) has been set, GOT may not be able to monitoring.Perform an I/O check
again.
➠
(2) When connecting with function extension board or communication special adapter
When a sequence program and settings that the FXCPU communicates with devices other than the GOT are set with
software, including GX Developer, the FXCPU cannot communicate with the GOT.
(a) Settings with sequence program
Check the sequence program and delete the following.
➠
• No protocol communication (RS instruction)
• Sequence program with the computer link, N:N network, and parallel link
• Parameter setting
• Set the following special registers to 0.
Except FX3U, FX3UC: D8120
FX3U, FX3UC: D8120, D8400, D8420
FX3G, FX3GC, FX3GE: D8120, D8400, D8420, D8370
FX3S: D8120, D8400
(b) Settings with GX Developer
Select [PLC parameter] in [Parameter], and then click the PLC system(2) tab on the FX parameter screen.
Uncheck [Operate communication setting], and then transfer the parameter to the programmable controller.After
the transfer, turn off the programmable controller, and then turn on the programmable controller again.
■2. 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.
➠
■3. Connection to LCPU
LCPU may diagnose (check file system, recovering process, etc.) the SD memory card when turning on the power or
when resetting. Therefore, it takes time until the SD memory card becomes available. When the GOT starts before the
SD card becomes available, a system alarm occurs. Adjust the opening screen time in the GOT setup so that no
system alarm occurs.
➠
■4. Connection to QCPU
Do not set the serial communication function of Q00UJ/Q00U/Q01U/Q02U/Q03UD/Q04UDH/Q06UDH/Q10UDH/
Q13UDH/Q20UDH/Q26UDHCPU, Q00/Q01CPU.
If the function is set, the communication may not be performed.
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6.6 Precautions
■2. Perform an I/O check
When the result of the I/O check is normal, check the status of keyword registration.
FX SERIES PROGRAMMABLE CONTROLLERS USER'S MANUAL - Data Communication
Edition
GT Designer3 (GOT2000) Screen Design Manual
GT Designer3 (GOT2000) Screen Design Manual