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FAQ within [ MELSEC-F Series ]
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Meanings of the sink input/source input
The sink input connects to a negative common for 24 V DC. The source input connects to a positive common. The sink input is generally used in Japan and No... More Details >>
- No:22254
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , I/O Extension
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I/O structure error in the MELSEC-F
When an unimplemented input (X) or output (Y) number is used in a program, M8060 turns on. The first to third digits of the numericalvalue stored in D8060 i... More Details >>
- No:22284
- Release Date:2018/08/30 13:48
- Update:2019/02/18 15:17
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Necessity for installing a noise filter
Unless the necessity is described in manuals, a noise filter is not required. However, if the programmable controller is used in an environment with much no... More Details >>
- No:22283
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , I/O Extension , Analog Control , High-Speed Counting , Positioning Control , Network/Communication , Accessories
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Programmable controllers with no battery (MELSEC-F)
A battery is used for backing up program memory and latched device data and maintaining clock operation in the event of a power failure. The FX3S/FX3G/FX3G... More Details >>
- No:22259
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , Accessories
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Assignment of remote input device and remote output device of FX3U-16CCL-M
The remote input device and the remote output device cannot be assigned in network parameters. To assign them, create a program for updating data. For de... More Details >>
- No:24792
- Release Date:2019/02/28 09:08
- Category: MELSEC-F Series , Engineering Software , Network/Communication
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Differences between the file register and other registers
The file register is used for storing predetermined values (such as specification values for product inspection). Other registers are used as a temporary st... More Details >>
- No:22256
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Keyword protection of the MELSEC-F series
The keyword protection cannot be forcibly reset. Since only the keyword that has been registered by theuser is acceptable, please take measures to ensure th... More Details >>
- No:24784
- Release Date:2019/02/27 16:27
- Category: MELSEC-F Series , Engineering Software , Main Unit
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How to reset M8004 (Error occurrence)
Yes, it is. However, if the error cause is not eliminated, M8004 will turn on again after powering on. * How to check the error In the FX3S/FX3G/FX3GC/FX... More Details >>
- No:22280
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Turning on/off a specified bit of a word device (D) using a simple program
In the FX programmable controllers (FX3U/FX3UC series), a bit in a word device can be specified in a program. It can be specified as "word device (D only) + ... More Details >>
- No:25011
- Release Date:2019/04/23 11:13
- Category: MELSEC-F Series , Engineering Software , Main Unit
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When a personal computer (GX Works2) is connected to the RS-232C port of a programmable controller, communications between the personal computer and the prog... More Details >>
- No:24782
- Release Date:2019/02/27 16:10
- Category: MELSEC-F Series , Engineering Software , Main Unit
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