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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Regarding changing the current value of the high-speed counter.
To rewrite the current value, arbitrary values can be written using the DHCMOV instruction. (Example) Set the current value of the high-speed counter ch1 ... More Details >>
- No:22303
- Release Date:2018/08/30 13:55
- Update:2023/02/06 17:05
- Category: MELSEC iQ-F Series , CPU Module , High-Speed Counter
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Regarding MODBUS/TCP communication of the built-in Ethernet port
When used as a master station, communication with a slave station can be performed using the simple CPU communication or the predefined protocol support func... More Details >>
- No:22302
- Release Date:2018/08/30 13:55
- Update:2022/12/22 08:52
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding the processing specification of the basic operation instruction(LD).
The execution time of the basic opeartion instruction (LD) of the FX5U/FX5UC/FX5UJ CPU module is 34 ns. *For firmware Ver.1.100 or above, this specification ... More Details >>
- No:22287
- Release Date:2018/08/30 13:55
- Update:2023/07/03 11:56
- Category: MELSEC iQ-F Series , CPU Module
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I/O structure error in the MELSEC-F
When an unimplemented input (X) or output (Y) number is used in a program, M8060 turns on. The first to third digits of the numericalvalue stored in D8060 i... More Details >>
- No:22284
- Release Date:2018/08/30 13:48
- Update:2019/02/18 15:17
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Model name of a built-in battery (FX3U/FX3UC)
FX3U-32BL More Details >>
- No:22278
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , Accessories
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For the sink input, the "S/S" terminal and the "24V" terminal are needed to be short-circuited. More Details >>
- No:22272
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , I/O Extension
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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
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Regarding the MQTT communication function retransmission function
No, there is no function to resend all the data that could not be sent. By setting Retain and QoS from FB, it is possible to resend only the latest message. More Details >>
- No:44368
- Release Date:2024/03/27 16:56
- Category: MELSEC iQ-F Series , Network/Communication
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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
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Regarding setting the FX5 CPU Module that does not support the simple CPU communication function
When connecting 2 FX5 CPU Modules (firmware version 1.110 or later) that support the Simple CPU communication function and 2 FX5 CPU Modules (firmware vers... More Details >>
- No:44329
- Release Date:2024/03/20 13:35
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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