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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Regarding the frequency of high-speed counters
The maximum frequency of the FX5U/FX5UC CPU module is 200kHz and the maximum frequency of the FX5S/FX5UJ CPU module is 100 kHz. More Details >>
- No:22312
- Release Date:2018/08/30 13:55
- Update:2022/12/22 10:18
- Category: MELSEC iQ-F Series , CPU Module , High-Speed Counter
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Regarding expansion of communication ports
MODBUS serial communication over multiple communication channels is possible. The MODBUS serial communication settings can be set from GX Works3 parameters. More Details >>
- No:22323
- Release Date:2018/08/30 13:55
- Update:2025/11/11 14:20
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Clearing the battery error without resetting the CPU module
It is impossible. Battery replacement is essential in clearing the battery error and the power of the programmable controller must be turned off before the... More Details >>
- No:22510
- Release Date:2018/09/03 17:28
- Update:2018/09/20 13:27
- Category: MELSEC-Q Series
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Setting of Q series registers whose data is held when a power failure occurs
Assign data registers (D) to Latch (1) or Latch (2) in the "Device Setting" window ([PLC Parameter] -> "Device Setting" window) to hold the data when a po... More Details >>
- No:22601
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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QnA-compatible 3E frame command (0406) for the built-in Ethernet port QCPU
The built-in Ethernet port QCPU is not compatible with a multiple-block batch read command (0406) of the MC protocol. Executable commands are the following.... More Details >>
- No:22608
- Release Date:2018/09/03 17:29
- Update:2018/09/20 18:09
- Category: MELSEC-Q Series
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Simulation function not started
The simulation function utilizes the standard TCP/IP communication provided by Microsoft Corporation. A communication capability of software of another make... More Details >>
- No:22631
- Release Date:2018/09/03 17:29
- Update:2018/09/21 10:45
- Category: MELSEC-Q Series
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Error code "2200" in the High-Performance model QCPU
The error code "2200" is "MISSING PARA.". It may be determined as the cause of the error that there is no parameter file in the parameter-valid drive that h... More Details >>
- No:22699
- Release Date:2018/09/03 17:29
- Update:2018/09/21 14:24
- Category: MELSEC-Q Series
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Use of 4E frame for built-in Ethernet port of LCPU
The built-in Ethernet port in the L series is compatible only with the QnA-compatible 3E frame. The 4E frame is not supported. More Details >>
- No:22761
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Difference between CC-Link reserved stations and invalid stations
- Reserved station Reserved stations are not actually connected to the network (but will be connected in the future) but do not appear as data link error... More Details >>
- No:22993
- Release Date:2018/09/03 17:31
- Update:2018/09/25 17:37
- Category: Network related products
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MC protocol supported by the FX3U-ENET-L
The frame typesupported byMC protocol is equivalent to A-compatible 1E frame. More Details >>
- No:24702
- Release Date:2019/02/27 08:59
- Category: MELSEC-F Series , Network/Communication
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