The FX3 intelligent function modules cannot be selected from the Element selection window because it does not correspond

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used.

It is possible to use latch devices or I/O devices (X/Y) for link refresh devices. However, when using I/O devices (X/Y)

FX5U/FX5UC/FX5UJ CPU modules cannot perform firmware update using GX Works3. Use the SD memory card to update the firmwa

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

In GX Works3, [Tools] - [Options] - [Conversion] - [Online Program Change], set "Execute Online Program Change in Conver

After removing the error factor, you can clear it by executing "Clear latest error code" from "Diagnostic" - "Simple CPU

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

You can monitor buffer memory values in the Ladder Editor by setting in GX Works3 >Tools >Options > Monitor &gt

Perform "Rebuild All" and initialize the memory before writing to the PLC. "Rebuild All" converts the entire project and

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MELSEC iQ-F Series

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FAQ within [ MELSEC iQ-F Series ]

241-250 of Total 266

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Regarding selection of FX3 intelligent function modules on the module configuration diagram of GX Works3

The FX3 intelligent function modules cannot be selected from the Element selection window because it does not correspond to the parameter setting of GX Works... More Details >>
- No：22304
- Release Date：2018/08/30 13:55
- Update：2024/08/19 09:50
- Category： MELSEC iQ-F Series , CPU Module , Engineering Software
Regarding the maximum number of connections for MODBUS communication

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used. More Details >>
- No：22324
- Release Date：2018/08/30 13:55
- Update：2023/06/23 10:49
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication
Regarding the link refresh settings of FX5-CCL-MS

It is possible to use latch devices or I/O devices (X/Y) for link refresh devices. However, when using I/O devices (X/Y), use I/O numbers (such as X1000 ~/Y... More Details >>
- No：22308
- Release Date：2018/08/30 13:55
- Update：2023/06/23 10:37
- Category： MELSEC iQ-F Series , CPU Module , Engineering Software , Network/Communication
Regarding how to update the firmware of the FX5 CPU module

FX5U/FX5UC/FX5UJ CPU modules cannot perform firmware update using GX Works3. Use the SD memory card to update the firmware. However, the FX5S CPU module sup... More Details >>
- No：39325
- Release Date：2023/02/14 09:03
- Category： MELSEC iQ-F Series , CPU Module , Engineering Software
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
Regarding How to release Online Program Change

In GX Works3, [Tools] - [Options] - [Conversion] - [Online Program Change], set "Execute Online Program Change in Converting" to "No." More Details >>
- No：44876
- Release Date：2025/03/18 10:26
- Category： MELSEC iQ-F Series , CPU Module , Engineering Software
Regarding how to clear simple CPU communication function errors

After removing the error factor, you can clear it by executing "Clear latest error code" from "Diagnostic" - "Simple CPU Communication Diagnostic" in GX Work... More Details >>
- No：40049
- Release Date：2023/08/25 09:06
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication
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
Regarding how to Monitor Buffer Memory Values

You can monitor buffer memory values in the Ladder Editor by setting in GX Works3 >Tools >Options > Monitor > Common Item > Monitor Buffer Mem... More Details >>
- No：39324
- Release Date：2023/01/12 16:56
- Category： MELSEC iQ-F Series , CPU Module
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

241-250 of Total 266

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