The sink input connects to a negative common for 24 V DC. The source input connects to a positive common. The sink in

A battery is used for backing up program memory and latched device data and maintaining clock operation in the event of

The following shows the devices for the battery errors. • [SM51] Battery low latch Turn ON when the voltage of battery

There are three QoS levels and FX5-ENET is also supported. ・QoS0 - The message is sent only once from the source clien

Up to 63 files can be handled simultaneously. In addition, up to 1000 files can be created by creating FIFO function fil

When changing the time by using the clock data write instruction (TWR), the control of M8015 (Clock stop/adjustment) is

Free mail services that have been verified to work with the email function are Gmail, Yahoo! mail, and iCloud email.(As

The USB driver is not installed.The driver needs to be separately installed before the first connection to a CPU module.

Alarm 2149 (Main circuit OFF warning) occurs when the servo system turns ON with no power supplied to the servo main cir

The FX3U-ENET-L and FX3U-ENET-ADP are Ethernet-connectable. The FX3U-ENET-L can be used with the FX3U and FX3UC series

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FAQ within [ Controllers ]

1021-1030 of Total 1123

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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
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
Battery error

The following shows the devices for the battery errors. • [SM51] Battery low latch Turn ON when the voltage of battery reduces to less than 2.5[V]. Remains O... More Details >>
- No：23558
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU
Regarding the QoS function of the MQTT Communication function

There are three QoS levels and FX5-ENET is also supported. ・QoS0 - The message is sent only once from the source client. 　　　　　　Messages are not guarant... More Details >>
- No：40056
- Release Date：2023/08/25 09:04
- Category： MELSEC iQ-F Series , Network/Communication
Number of files that can be created inside a CF card in the FX3U-CF-ADP

Up to 63 files can be handled simultaneously. In addition, up to 1000 files can be created by creating FIFO function files. * The total capacity of the files... More Details >>
- No：24944
- Release Date：2019/04/18 14:26
- Category： MELSEC-F Series , Main Unit , I/O Extension , Accessories
Changing the time of a programmable controller by using the clock data write instruction (TWR)

When changing the time by using the clock data write instruction (TWR), the control of M8015 (Clock stop/adjustment) is not required. * When the clock data... More Details >>
- No：22266
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Engineering Software , Main Unit
Regarding Free Mail Service with Email Function

Free mail services that have been verified to work with the email function are Gmail, Yahoo! mail, and iCloud email.(As of July 2025) Use the encryption fun... More Details >>
- No：40058
- Release Date：2023/08/25 10:22
- Update：2025/11/11 14:31
- Category： MELSEC iQ-F Series , Network/Communication
GX Works2's USB driver installation procedure

The USB driver is not installed.The driver needs to be separately installed before the first connection to a CPU module. More Details >>
- No：22507
- Release Date：2018/09/03 17:28
- Category： MELSEC-Q Series
Alarm 2149

Alarm 2149 (Main circuit OFF warning) occurs when the servo system turns ON with no power supplied to the servo main circuit. Review the condition of servo O... More Details >>
- No：23566
- Release Date：2018/09/14 15:09
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
Ethernet-connectable modules in MELSEC-F

The FX3U-ENET-L and FX3U-ENET-ADP are Ethernet-connectable. The FX3U-ENET-L can be used with the FX3U and FX3UC series (both Ver. 2.21 or later). The FX3U-... More Details >>
- No：22270
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , Network/Communication

1021-1030 of Total 1123

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