The MQTT communication function of FX5-ENET does not allow multiple connections to be opened at the same time. The MQTT

In 8-bit mode, the upper 8 bits of transmitted and received data are ignored and only the lower 8 bits are valid data.

Please update GX Works3 to the latest version. After updating, FX5-ENET/IP is displayed in the Module configuration diag

The EtherNet/IP settings of the FX5-EIP can be set in GX Works3. No additional tools are required.

No need. The MODBUS device allocation settings are used when the MODBUS slave function is used.

Class1 communication of FX5-ENET/IP is instance communication. Tag communication is not supported. Tag communication is

"The number of characters specified in the input label: i_uBodyLength (number of characters in the body) is different fr

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used.

For TCP protocol of SLMP communication, KeepAlive is fixed and cannot be changed. In the case of UDP protocol, it is fix

The Web server function allows you to log in from up to four devices at the same time. You can't log in from the fifth m

FAQ

FAQAbout Products

Font Size
S
M
L

FAQ > Controllers > Programmable Controllers MELSEC > MELSEC iQ-F Series > Network/Communication

FAQ

Inquiries

Keyword Search

You can search two or more words separated by a space.

 AND : Put a space between the words in a keyphrase.
 OR  : Add a vertical bar ( | ) between the words in a keyphrase.
 NOT : Add a minus sign ( - ) followed by the words that you would like to exclude.

Result Type

Text Search

FAQ within [ Network/Communication ]

31-40 of Total 106

prev 4 / 11page next

Regarding multiple connections for the MQTT communication function

The MQTT communication function of FX5-ENET does not allow multiple connections to be opened at the same time. The MQTT communication function has a maximum ... More Details >>
- No：44358
- Release Date：2024/03/27 16:02
Regarding differences between 8 bit and 16 bit modes for non-protocol communication

In 8-bit mode, the upper 8 bits of transmitted and received data are ignored and only the lower 8 bits are valid data. In 16 bit mode, send/receive data i... More Details >>
- No：39363
- Release Date：2023/02/15 13:04
Regarding display of FX5-ENET/IP in a Module configuration Diagram

Please update GX Works3 to the latest version. After updating, FX5-ENET/IP is displayed in the Module configuration diagram of GX Works3. Download the lates... More Details >>
- No：39303
- Release Date：2023/01/12 17:13
Regarding understanding EtherNet/IP Settings for FX5-EIP

The EtherNet/IP settings of the FX5-EIP can be set in GX Works3. No additional tools are required. More Details >>
- No：45487
- Release Date：2025/11/12 13:56
Regarding MODBUS Device Allocation Settings

No need. The MODBUS device allocation settings are used when the MODBUS slave function is used. More Details >>
- No：40026
- Release Date：2023/08/24 14:37
Regarding Tag communication support of FX5-ENET/IP

Class1 communication of FX5-ENET/IP is instance communication. Tag communication is not supported. Tag communication is supported by FX5-EIP. More Details >>
- No：44624
- Release Date：2024/11/28 16:14
- Update：2025/11/11 14:32
Regarding Error code H1968 of FX5-ENET Mail send FB

"The number of characters specified in the input label: i_uBodyLength (number of characters in the body) is different from the number of characters in the bo... More Details >>
- No：44607
- Release Date：2024/11/28 16:12
Regarding the maximum number of connections for MODBUS communication

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used. More Details >>
- No：22324
- Release Date：2018/08/30 13:55
- Update：2023/06/23 10:49
Regarding KeepAlive for SLMP Communication

For TCP protocol of SLMP communication, KeepAlive is fixed and cannot be changed. In the case of UDP protocol, it is fixed to not perform a keep-alive check. More Details >>
- No：45477
- Release Date：2025/11/12 13:37
Regarding simultaneous access to Web Server function

The Web server function allows you to log in from up to four devices at the same time. You can't log in from the fifth machine. More Details >>
- No：39330
- Release Date：2023/02/14 09:06

31-40 of Total 106

Inquiries

page top