FAQ


FAQAbout Products
- FAQ > Controllers > Programmable Controllers MELSEC
FAQ
Keyword Search
Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
-
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
-
SD520 stores the current scan time in 1 ms units. More Details >>
- No:22556
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
-
Software required for MX Sheet
MX Component and EXCEL are required. More Details >>
- No:22646
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
-
Print settings of the device list in GX Works2
When [Display Option] -> [Used devices] -> [Contact] and [Coil] are selected in the Device List window, devices used are not displayed. More Details >>
- No:22661
- Release Date:2018/09/03 17:29
- Update:2018/09/21 12:18
- Category: MELSEC-Q Series
-
How to check the capacity of the file registers in use
The capacity file registers currently have can be checked in the file register setting section ([PLC Parameter] -> [PLC File] tab). More Details >>
- No:22694
- Release Date:2018/09/03 17:29
- Update:2018/09/21 14:19
- Category: MELSEC-Q Series
-
Availability of step ladders for FX in L series
Step ladders are not available in LCPU. There is no alternative function. More Details >>
- No:22752
- Release Date:2018/09/03 17:29
- Category: MELSEC-L Series
-
Connection status detection between a hub and the built-in Ethernet port of LCPU
The bit 10 of the special register SD1288 provides the connection status to a hub. When the bit 10 of SD1288 is ON, a hub is connected. More Details >>
- No:22759
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
-
The conversion speed is as follows. - High speed: 20 microseconds per channel- Medium speed: 80 microseconds per channel- Low speed: 1 millisecond per channel More Details >>
- No:22776
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
-
Precautions for use of SD memory card
Yes. Note that SD memory cards are formatted at the factory. If an SD memory card needs to be reformatted, format it using the CPU module. More Details >>
- No:22779
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
-
Use of commercial SD memory cards
Yes. A commercial SD memory card can be used. (32 GB max.)Connectable SD memory cards that passed our operation check are listed in the technical bulletin. More Details >>
- No:22801
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
331-340 of Total 1023