Check whether the lamp is back to normal after disconnecting the wiring of the "24V" (service power supply) terminal. I

For the sink input, the "S/S" terminal and the "24V" terminal are needed to be short-circuited.

The boot operation function is configured and executed from the GX Works3 parameter settings as follows. (1) Open the b

The FX5 CPU unit does not handle double-precision real numbers. Only single-precision real numbers can be handled.

One FX3U-ENET-ADP can be connected at the last stage (left end) of adapters for the FX3GC series. * The FX3U-ENET-ADP i

In the FX1S/FX1N/FX2N series, only the expansion board for special adapter connection can be used together with the spec

Ver.1.10 is a standard where CC-Link station-to-station cable length restriction in Ver. 1.00 has been removed, and the

You cannot select the item while the programmable controller is being monitored. Execute [Close all windows] of [Window

Up to 10 modules can be connected in the system as a whole except for the power supply module, CPU module, display unit,

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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
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FAQ within [ Programmable Controllers MELSEC ]

181-190 of Total 1010

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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
Input wiring (FX3 series)

For the sink input, the "S/S" terminal and the "24V" terminal are needed to be short-circuited. More Details >>
- No：22263
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , I/O Extension
Regarding Boot Operation procedures

The boot operation function is configured and executed from the GX Works3 parameter settings as follows. (1) Open the boot configuration screen. 　 From the... More Details >>
- No：44348
- Release Date：2024/03/27 15:29
- Category： MELSEC iQ-F Series , CPU Module
Regarding double-precision real numbers

The FX5 CPU unit does not handle double-precision real numbers. Only single-precision real numbers can be handled. More Details >>
- No：40033
- Release Date：2023/08/24 15:37
- Category： MELSEC iQ-F Series , CPU Module , Engineering Software
Regarding nesting contacts displayed on bus by master control instructions

It is not possible. More Details >>
- No：39361
- Release Date：2023/02/15 13:04
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication
Number of FX3U-ENET-ADP Ethernet communication special adapters that can be connected to the FX3GC series

One FX3U-ENET-ADP can be connected at the last stage (left end) of adapters for the FX3GC series. * The FX3U-ENET-ADP is a communication special adapter and... More Details >>
- No：24967
- Release Date：2019/04/23 07:18
- Category： MELSEC-F Series , Main Unit , Network/Communication
Using an expansion board and a special adapter together

In the FX1S/FX1N/FX2N series, only the expansion board for special adapter connection can be used together with the special adapter. In the FX3G series (onl... More Details >>
- No：24906
- Release Date：2019/04/15 11:32
- Category： MELSEC-F Series , Main Unit , I/O Extension
Difference in specifications between CC-Link versions

Ver.1.10 is a standard where CC-Link station-to-station cable length restriction in Ver. 1.00 has been removed, and the length of all station-to-station cabl... More Details >>
- No：22975
- Release Date：2018/09/03 17:31
- Category： Network related products
I cannot select [Transfer Setup] in GX Developer because it is displayed in gray.

You cannot select the item while the programmable controller is being monitored. Execute [Close all windows] of [Window] from the tool bar, and check if Tra... More Details >>
- No：22955
- Release Date：2018/09/03 17:31
- Update：2018/09/25 12:11
- Category： Engineering Software
Maximum number of connectable modules to LCPU when it is not extended

Up to 10 modules can be connected in the system as a whole except for the power supply module, CPU module, display unit, RS232C adapter, and END cover. Some ... More Details >>
- No：22775
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series

181-190 of Total 1010

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