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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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QCPU built-in Ethernet port setting when using the simple PLC communication function
The following settings are required for the "Open Setting" for the number of connected external devices. - Protocol: "UDP" - Open System: "MELSOFT connecti... More Details >>
- No:22654
- Release Date:2018/09/03 17:29
- Update:2018/09/21 12:02
- Category: MELSEC-Q Series
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Reading file registers simultaneously with the program, parameters, and other data in GX Works2
No. Switch the target memory for PLC Data and read the file registers alone. More Details >>
- No:22616
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Difference between redundant systems and the multiple CPU systems
- Redundant systems A redundant system offers improved system reliability, as it consists of two basic systems, each of which includes a CPU module, powe... More Details >>
- No:22609
- Release Date:2018/09/03 17:29
- Update:2018/09/20 18:14
- Category: MELSEC-Q Series
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Boot operation from the standard ROM in the universal model QCPU
The universal model QCPU modules have their standard ROM but boot operation from the standard ROM is impossible. Boot the module from a memory card. More Details >>
- No:22602
- Release Date:2018/09/03 17:29
- Update:2018/09/20 18:01
- 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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FL-net interface module setting
The auto refresh setting is not required. However, making the setting can reduce communication programs. More Details >>
- No:22588
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Communication between built-in Ethernet port QCPU modules
The following communication methods are available between built-in Ethernet port QCPU modules. - Socket communications are possible. - Communications equ... More Details >>
- No:22586
- Release Date:2018/09/03 17:29
- Update:2018/09/20 17:33
- Category: MELSEC-Q Series
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Writing comments to the standard ROM in Q series
To write in the standard ROM, select [Online] -> [Write to PLC] (Flash ROM) More Details >>
- No:22572
- Release Date:2018/09/03 17:29
- Update:2018/09/20 16:54
- Category: MELSEC-Q Series
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Necessities for the execution environment of MX Component
Both the developed software and MX Component must be installed. More Details >>
- No:22557
- Release Date:2018/09/03 17:29
- Update:2018/09/20 15:53
- Category: MELSEC-Q Series
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Boot operation from the standard ROM
The boot operation from the standard ROM is not possible.The program memory of universal model QCPU is a flash ROM.Thus, writing in the program memory achiev... More Details >>
- No:22553
- Release Date:2018/09/03 17:28
- Category: MELSEC-Q Series
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