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FAQ within [ MELSEC iQ-F Series ]
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Regarding the number of available channels of the built-in high speeed counters.
The high-speed counter supports 1-phase 1-input, 1-phase 2-input, 2-phase 2-input. The built-in counter in the CPU module can input up to 8ch. However,... More Details >>
- No:22310
- Release Date:2018/08/30 13:55
- Update:2023/02/13 11:42
- Category: MELSEC iQ-F Series , CPU Module , High-Speed Counter
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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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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 settings when the battery is installed
From the GX Works3 settings when the optional battery is installed, it must be set to Installed in the Optional Battery Settings. Use the following proc... More Details >>
- No:44363
- Release Date:2024/03/27 17:09
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Regarding analog ADP Power Supply abnormalities
H3081 is caused by an analog ADP power failure and the analog ADP is not receiving power normally. The FX5-4A-ADP and FX5-4DA-ADP are adapters that require p... More Details >>
- No:44346
- Release Date:2024/03/27 15:27
- Category: MELSEC iQ-F Series , Analog
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Regarding maximum number of connections for MQTT communication function
The MQTT communication function can be used for up to one connection. More Details >>
- No:40055
- Release Date:2023/08/25 08:53
- Category: MELSEC iQ-F Series , Network/Communication
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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
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Regarding Input Interrupt Delay
The following versions support the input interrupt delay function and can delay the start of execution. ・FX5U/FX5UC Ver. 1.290 or later ・FX5UJ Ver. 1.050 o... More Details >>
- No:40037
- Release Date:2023/08/24 15:43
- Category: MELSEC iQ-F Series , CPU Module
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