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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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File export of ladder programs
(1) If only GX Developer is used - The operation cannot be carried out for ladder programs. - For device comments, copy and paste operations can be carri... More Details >>
- No:22840
- Release Date:2018/09/03 17:30
- Update:2018/09/22 13:22
- Category: Engineering Software
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Method to prevent the BAT.LED from turning on
To prevent an LED from turning on when an error occurs, set 0 to the relevant factor number setting area (4 bits for each) in SD207 to SD209. To disable the ... More Details >>
- No:22754
- Release Date:2018/09/03 17:29
- Category: MELSEC-L Series
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Simple PLC communication function
This function allows data communications between specified devices at the specified timing, using the built-in Ethernet. Device data such as production data ... More Details >>
- No:22737
- Release Date:2018/09/03 17:29
- Category: MELSEC-L Series
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Synchronizing the internal clock of a universal model QCPU
- When a built-in Ethernet port QCPU is used You can synchronize it with the server using the time setting function. -When a module other than built-in ... More Details >>
- No:22723
- Release Date:2018/09/03 17:29
- Update:2018/09/21 15:53
- Category: MELSEC-Q Series
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Cables connected to the Ethernet port on the universal model QCPU
If a direct connection is made, either type can be used.If making a connection via a hub, use a straight cable. More Details >>
- No:22690
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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The power supply lamp of a running programmable controller suddenly turned off or flashes
Check whether the lamp is back to normalafter disconnecting the wiring of the "24V" (service power supply) terminal. Ifthe lamp is back to normal,the servic... More Details >>
- No:22267
- Release Date:2018/08/30 13:48
- Update:2019/02/19 11:53
- Category: MELSEC-F Series , Main Unit
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Regarding CC-Link IE field network support of FX5 CPU module built-in Ethernet
The built-in Ethernet on the FX5 CPU module does not support CC-Link IE field networks. If you use a CC-Link IE field network, add an FX5-CCLIEF. *The FX5-... More Details >>
- No:44877
- Release Date:2025/03/18 10:30
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding dedicated instruction for JOG operation
There is no dedicated instruction to drive JOG. Use PLSV (variable speed operation) when operating JOG. More Details >>
- No:44355
- Release Date:2024/03/27 15:50
- Category: MELSEC iQ-F Series , CPU Module , Motion/Positioning
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The following points are different for the iQ-F series. ・Error History If the FX5 CPU Module is turned off, the error history is cleared. ・Setting detail... More Details >>
- No:44335
- Release Date:2024/03/20 13:21
- Category: MELSEC iQ-F Series , CPU Module
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Regarding forced ON/OFF function for external input/output
The "Forced ON/OFF function for external input/output" that forces X/Y devices to turn on/off from GX Works3 is supported with the following firmware version... More Details >>
- No:44330
- Release Date:2024/03/20 12:56
- Category: MELSEC iQ-F Series , CPU Module
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