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FAQ within [ MELSEC iQ-F Series ]
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Regarding error 2440H on CPU module when using FX5-CCLGN-MS
When the power is turned on, the FX5-CCLGN-MS performs parameter check processing, and if an error occurs, the CPU module is also notified of the error. Ther... More Details >>
- No:39282
- Release Date:2023/01/12 16:49
- Category: MELSEC iQ-F Series , Network/Communication
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Regarding cable diversion to FX5-2HC/ES
The cable cannot be used because the connector shape is different, so change the wiring. FX5-2HC/ES is a spring clamp terminal block, and FX3U-2HC is a MIL-... More Details >>
- No:44337
- Release Date:2024/03/20 13:26
- Category: MELSEC iQ-F Series , High-Speed Counter
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Regarding how to back up FX5-4LC
Some buffer memory values are cleared when the power is turned off. Turn on the backup command before turning the power OFF. By turning the buffer memory ... More Details >>
- No:39347
- Release Date:2023/01/16 10:07
- Category: MELSEC iQ-F Series , Analog
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Regarding connection through a MODBUS/TCP Gateway
Communication is possible with simple CPU communication function of FX5CPU, FX5-ENET, FX5-ENET/IP modules. ※FX5U and FX5UC CPU modules with firmware version... More Details >>
- No:39343
- Release Date:2023/01/12 17:05
- Update:2023/06/23 11:13
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Regarding "_ U" in Application Instruction
It means an instruction that handles BIN 16 bit and BIN 32 bit unsigned data. Example:ADD _ U More Details >>
- No:39295
- Release Date:2023/02/13 16:37
- Category: MELSEC iQ-F Series , CPU Module
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Regarding Recommended Substitute Models for FX3G-CNV-ADP
The FX5 CPU modules allows you to add an expansion adapter without using a connector conversion adapter. Therefore, there is no Recommended Substitute Models... More Details >>
- No:44875
- Release Date:2025/03/18 10:27
- Category: MELSEC iQ-F Series , CPU Module
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Regarding scan time adjustment for replacing the FX3 Series
You can adjust by setting the constant scan in iQ-F series. Setting procedure: Navigation window > [Parameter] > [Module model name] > [CPU Paramet... More Details >>
- No:44866
- Release Date:2025/03/18 10:24
- Category: MELSEC iQ-F Series , CPU Module
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Regarding checking the input/output data of the FX5-EIP
This can be checked by monitoring the corresponding buffer memory from the Register to Intelligent Function Module Monitor. From [Parameter] - [Module Infor... More Details >>
- No:45490
- Release Date:2025/05/08 09:08
- Update:2025/10/31 15:18
- Category: MELSEC iQ-F Series , Network/Communication
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Regarding KeepAlive for SLMP Communication
For TCP protocol of SLMP communication, KeepAlive is fixed and cannot be changed. In the case of UDP protocol, it is fixed to not perform a keep-alive check. More Details >>
- No:45477
- Release Date:2025/11/12 13:37
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding Data Logging File Storage Format
It's possible. For the firmware and software versions of the corresponding CPU units, refer to the respective manuals. More Details >>
- No:39308
- Release Date:2023/02/13 16:44
- Update:2023/02/14 09:01
- Category: MELSEC iQ-F Series , CPU Module
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