FAQ


FAQAbout Products

FAQ
Keyword Search
Controllers
FAQ within [ Controllers ]
-
Simultaneous use of auto logging and backup functions
The auto logging function and backup function cannot be used simultaneously. The backup function must be used after the logging function is stopped. (A singl... More Details >>
- No:22819
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
-
An error occurs and CPU will stop. Install the END cover and reset the CPU module. More Details >>
- No:22817
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
-
Use of END cover with the branch module and extension module
Use an END cover applicable to the following. - The L6EC whose serial number (first six digits) is "*****2" or later- END cover with ERR terminal (optional i... More Details >>
- No:22815
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
-
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
-
Regarding Intelligent Function Modules with connectivity constraints
The following intelligent function modules have restrictions on the number of modules that can be connected. More Details >>
- No:44984
- Release Date:2025/05/08 09:07
- Category: MELSEC MX Controller MX-F Model
-
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
-
Regarding issuing Client Certificates to Connect with AWS IoT Core
Set the RSA strength to at least 2048 bits. Anything less than 2048 bits is not supported by AWS IoT Core and cannot be connected. More Details >>
- No:44343
- Release Date:2024/03/20 13:34
- Category: MELSEC iQ-F Series , Network/Communication
-
Regarding how to back up FX5-4LC
Some buffer memory values are cleared when the power is turned off. Turn on the backup command before turning the power OFF. By turning the buffer memory ... More Details >>
- No:39347
- Release Date:2023/01/16 10:07
- Category: MELSEC iQ-F Series , Analog
-
Regarding clearing the maximum and minimum scan times
It can be cleared with the scan time clear function. You can clear maximum and minimum scan time with GX Works3 Ver. 1.085 P or later or by special relays. More Details >>
- No:39342
- Release Date:2023/02/15 10:05
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
-
Regarding Data Logging File Storage Format
It's possible. For the firmware and software versions of the corresponding CPU units, refer to the respective manuals. More Details >>
- No:39308
- Release Date:2023/02/13 16:44
- Update:2023/02/14 09:01
- Category: MELSEC iQ-F Series , CPU Module
421-430 of Total 1110