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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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How to change the keeping (latched device data) range (FX3G/FX3GC)
The keeping (latched device data) range is fixed and cannot be changed in parameters. (Reference) [When an optional battery is not used] The keeping ran... More Details >>
- No:22260
- Release Date:2018/08/30 13:48
- Update:2019/02/19 11:52
- Category: MELSEC-F Series , Engineering Software , Main Unit , Accessories
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The LCPU error code 4116 is displayed when a built-in I/O instruction that is disabled in the parameter setting is executed. Check for the parameter settings... More Details >>
- No:22807
- Release Date:2018/09/03 17:30
- 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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Difference between SM0 and SM1
SM0 turns ON when self-diagnostic checks detect an error or when an annunciator turns ON.SM1 turns ON when self-diagnostic checks detect an error. More Details >>
- No:22632
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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I/O assignment of PLC parameters with GX Works3
"PC Parameter" in GX Works2 is "Parameter" in GX Works3. You can set the I/O assignment from "Module Configuration" or "System Parameter". <Setting fr... More Details >>
- No:22475
- Release Date:2018/09/03 17:28
- Update:2018/09/19 14:42
- Category: MELSEC iQ-R Series
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Changing to the monitor write mode automatically changes the online change setting in Options to "Write during RUN (while PLC is running)".With returning to ... More Details >>
- No:22541
- Release Date:2018/09/03 17:28
- Category: MELSEC-Q Series
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Regarding a mismatch found in the monitoring function of GX Works3
Perform "Rebuild All" and initialize the memory before writing to the PLC. "Rebuild All" converts the entire project and "Convert" only coverts the modified... More Details >>
- No:22293
- Release Date:2018/08/30 13:55
- Update:2023/02/13 15:31
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Battery replacement during power-on
Replacethe battery when the programmable controller is powered off. For example, forthe FX3U/FX3UC series, data will be held for about 20 seconds after be... More Details >>
- No:22257
- Release Date:2018/08/30 13:48
- Update:2019/02/19 11:54
- Category: MELSEC-F Series , Main Unit , Accessories
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Remedies for WDT errors on a MELSECNET/H board
The error code indicates a WDT (watchdog timer) error. It is determined as the cause that the MELSECNET/H driver cannot work due to a computer or OS hang, or... More Details >>
- No:22969
- Release Date:2018/09/03 17:31
- Category: Network related products
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I cannot convert a circuit created with GX Developer.
When the conversion is executed, online change is automatically executed.When the online change at the upper right section of the setting in "Options" of "To... More Details >>
- No:22958
- Release Date:2018/09/03 17:31
- Category: Engineering Software
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