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FAQ within [ MELSEC iQ-F Series ]
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Regarding the type of battery which can be used with the CPU module.
FX3U-32BL can be used. The battery is not included with the CPU modu... More Details >>
- No:22285
- Release Date:2018/08/30 13:55
- Category: MELSEC iQ-F Series , Option , CPU Module
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Regarding the frequency of high-speed counters
The maximum frequency of the FX5U/FX5UC CPU module is 200kHz and the maximum frequency of the FX5S/FX5UJ CPU module is 100 kHz. More Details >>
- No:22312
- Release Date:2018/08/30 13:55
- Update:2022/12/22 10:18
- Category: MELSEC iQ-F Series , CPU Module , High-Speed Counter
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Regardng compatability with other product series
Although the connection with FX2N series I/O modules, FX2 series intelligent function modules, and FX3 series special adater is not possible, FX3 series inte... More Details >>
- No:22309
- Release Date:2018/08/30 13:55
- Update:2022/12/22 09:46
- Category: MELSEC iQ-F Series , CPU Module , I/O Module
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Regarding CW/CCW(Forward pulse/Reverse pulse) output of the built-in positioning function
FX5U/FX5UC/FX5S CPU modules are supported. Up to 2 axes are available in GX Works3 parameter settings. In addition, up to 8 axes can be added by adding a hi... More Details >>
- No:22306
- Release Date:2018/08/30 13:55
- Update:2023/06/23 10:48
- Category: MELSEC iQ-F Series , CPU Module , Motion/Positioning
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Regarding the type of Ethernet connection cable
Ethernet standard-compatible cable, category 5 or higher (STP cable) can be used. *Straight cable can be used. When connecting directly to the computer, cr... More Details >>
- No:22295
- Release Date:2018/08/30 13:55
- Update:2023/06/23 10:23
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding dedicated instruction for JOG operation
There is no dedicated instruction to drive JOG. Use PLSV (variable speed operation) when operating JOG. More Details >>
- No:44355
- Release Date:2024/03/27 15:50
- Category: MELSEC iQ-F Series , CPU Module , Motion/Positioning
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Regarding the difference between the RS-485 expansion adapter and the extension board
The difference is the maximum transmission distance and the presence/absence of insulation (between the communication line and the CPU). ・Expansion Adapter ... More Details >>
- No:39315
- Release Date:2023/01/12 16:56
- Category: MELSEC iQ-F Series , Network/Communication
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The FX5 CPU module does not support UDP broadcast communication. More Details >>
- No:22291
- Release Date:2018/08/30 13:55
- Update:2023/06/23 10:49
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding replacing FLT Instructions
For the iQ-F series, use the following instructions. For signed 16 bit integers, use the INT2FLT instruction. For unsigned 16 bit integers, use the UINT2FL... More Details >>
- No:45479
- Release Date:2025/11/12 13:54
- Category: MELSEC iQ-F Series , CPU Module
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Regarding maximum number of connections for the simple CPU communication function
The maximum number of connections for the simple CPU communication function of FX5 CPU module is 16 for FX5U/FX5UC CPU module and 8 for FX5UJ/FX5S CPU module... More Details >>
- No:40032
- Release Date:2023/08/24 15:37
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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