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FN_109329631-Visitor
1-Visitor
July 16, 2025
Solved

GE Fanuc 90-30 PLC Connectivity via Ethernet Gateway

  • July 16, 2025
  • 2 replies
  • 674 views

I am currently working on integrating a GE Fanuc 90-30 PLC with Kepware and have encountered an issue I’d like your assistance with.

I have successfully connected to the PLC using the GE SNP driver in Kepware through a direct USB-to-RS422 interface (specifically, the IC690USB901). Communication works as expected in this setup.

However, when I attempt to connect to the same PLC using a USR-N510 Ethernet-based serial gateway, I selected the GE Ethernet driver in Kepware, but the connection does not work.

Unfortunately, the GE SNP driver in Kepware does not seem to support Ethernet encapsulation (serial-over-IP) directly, Any guidance or documentation on this would be greatly appreciated.

Best answer by pshashipreetham

You can use virtual COM port redirection software that creates a virtual serial port on your PC and forwards traffic to the USR-N510. This effectively tricks Kepware into thinking it's using a local serial port, while in reality, it's routing data over an Ethernet connection.

 

Examples:

  • HW VSP3 or VSP3 MultiPort (by HW-group)

  • Tibbo VSP Manager

  • USR-VCOM software (provided by USR for the N510)

Make sure:

  • The virtual COM port is set to the same baud rate, parity, and other serial settings as your PLC and the original SNP setup.

  • The USR-N510 is configured in TCP Server mode, and the VSP is set as the TCP client connecting to it.

Once set up, point Kepware’s GE SNP driver to the new virtual COM port. It should behave exactly like the direct USB-RS422 connection.

Thanks,

2 replies

P
18-Opal
pshashipreetham18-OpalAnswer
18-Opal
July 16, 2025

You can use virtual COM port redirection software that creates a virtual serial port on your PC and forwards traffic to the USR-N510. This effectively tricks Kepware into thinking it's using a local serial port, while in reality, it's routing data over an Ethernet connection.

 

Examples:

  • HW VSP3 or VSP3 MultiPort (by HW-group)

  • Tibbo VSP Manager

  • USR-VCOM software (provided by USR for the N510)

Make sure:

  • The virtual COM port is set to the same baud rate, parity, and other serial settings as your PLC and the original SNP setup.

  • The USR-N510 is configured in TCP Server mode, and the VSP is set as the TCP client connecting to it.

Once set up, point Kepware’s GE SNP driver to the new virtual COM port. It should behave exactly like the direct USB-RS422 connection.

Thanks,

    V
    vnamboodheriCommunity Manager
    Community Manager
    July 23, 2025

    Hello @FN_10932963,

     

    It looks like you have a response from our community champion. If it helped you solve your question please mark the reply as the Accepted Solution. 
    Of course, if you have more to share on your issue, please let the Community know so other community members can continue to help you.

    Thanks,
    Vivek N.
    Community Moderation Team.

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