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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Battery replacement for High-Performance model QCPU
The contents of the program memory, the standard RAM, and latch devices are not erased if the battery replacement is completed within three minutes, which is... More Details >>
- No:22568
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Recommended cables for MODBUS(R) interface module QJ71MB91
The RS-232 cable should meet RS-232 standards and not exceed 15 m in length.The RS-422/485 cable should meet specifications described in the following manual... More Details >>
- No:22566
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Turning OFF the power with the battery error occurring
It deletes the error history. More Details >>
- No:22545
- Release Date:2018/09/03 17:28
- Category: MELSEC-Q Series
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Those displayed under COMMENT are common comments, and others are program comments.When there are multiple programs in a project, a common comment applies to... More Details >>
- No:22540
- Release Date:2018/09/03 17:28
- Category: MELSEC-Q 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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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 replacement from 128 point type of FX3U
The FX5U CPU module has a lineup of up to 80 point. The following configuration is recommended when replacing the FX3U-128MR/ES. Recommended alternative (1... More Details >>
- No:44617
- Release Date:2024/11/28 16:13
- Category: MELSEC iQ-F Series , CPU Module
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Regarding Selecting a mapping pattern for PDO communication
On the FX5-CCLGN-MS, select "3rd Transmit PDO Mapping" and "3rd Revive PDO Mapping." The 3rd mapping pattern corresponds to the profile position mode (pp), ... More Details >>
- No:44477
- Release Date:2024/07/02 19:06
- Category: MELSEC iQ-F Series , Network/Communication
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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 communication testing of Certificate Configuration Tool for FX5-ENET
The following are possible causes for communication not being established between the Certificate Configuration Tool for FX5-ENET and FX5-ENET. (1) Connecte... More Details >>
- No:40075
- Release Date:2023/08/25 09:06
- Category: MELSEC iQ-F Series , Network/Communication
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