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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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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 how to generate a false error
There is no function to generate a false error. For example, if operand (s2): divisor is set to "0" in the division command and the command is executed, err... More Details >>
- No:44610
- Release Date:2024/11/28 16:11
- Category: MELSEC iQ-F Series , CPU Module
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Regarding understanding FX5-EIP Configuration Restrictions
One FX5-EIP can be used per system. It cannot be used with FX5-ENET/IP. More Details >>
- No:45484
- Release Date:2025/11/12 13:55
- Category: MELSEC iQ-F Series , Network/Communication
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External power supply for input(MELSEC-F)
For the MELSEC-F series, only DC power supply type can use an external power supply. More Details >>
- No:22268
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit
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Regarding expansion of communication ports
MODBUS serial communication over multiple communication channels is possible. The MODBUS serial communication settings can be set from GX Works3 parameters. More Details >>
- No:22323
- Release Date:2018/08/30 13:55
- Update:2025/11/11 14:20
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Software to be supplied with GX Works3
GX Works2 and GX Developer are supplied with GX Works3. When installing GX Works3, you can select whether to install GX Works2 and GX Developer together. More Details >>
- No:22463
- Release Date:2018/09/03 17:28
- Update:2018/09/18 16:14
- Category: MELSEC iQ-R Series
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Models of extended SRAM cassettes that can be used with MELSEC iQ-R series CPU modules
You can use "NZ2MC-1MBS", "NZ2MC-2MBS", "NZ2MC-4MBS", "NZ2MC-8MBS", "NZ2MC-16MBS",and "NZ2MC-8MBSE". You cannot use extended SRAM cassettes for the high-spe... More Details >>
- No:22468
- Release Date:2018/09/03 17:28
- Update:2018/09/21 16:36
- Category: MELSEC iQ-R Series
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I/O numbers of a MELSEC iQ-R series I/O combined module (RH42C4NT2P)
An input and output use a single I/O number. (This is the same as QH42P.) When you replace a module that uses serial I/O numbers (e.g. QX41Y41P) with this m... More Details >>
- No:22471
- Release Date:2018/09/03 17:28
- Update:2018/09/19 13:57
- Category: MELSEC iQ-R Series
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I cannot place a main base unit in a module configuration diagram with GX Works3.
You may have already placed a main base unit in the module configuration diagram. Scroll up or down in the module configuration diagram and check if a main ... More Details >>
- No:22487
- Release Date:2018/09/03 17:28
- Update:2018/09/20 09:37
- Category: MELSEC iQ-R Series
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You can synchronize the fixed scan communication cycle of the multiple CPU system function with the inter-module synchronization cycle of the inter-module s... More Details >>
- No:22494
- Release Date:2018/09/03 17:28
- Update:2018/09/20 11:12
- Category: MELSEC iQ-R Series
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