Skip to main content
V
VC_113471143-Newcomer
3-Newcomer
January 9, 2025
Question

Modifying S/N Parameter of a MODBUS RTU Device via KepserverEx

  • January 9, 2025
  • 1 reply
  • 576 views

Hello everyone,

I’m seeking guidance on a specific issue I’m encountering with a MODBUS RTU device connected through KepserverEx.

Previously, we communicated directly with the device, and we were able to modify its serial number (S/N) using a custom-built frame. However, we’ve since transitioned to using a KepserverEx server for communication, and I’m unsure how to perform the same operation in this new setup.

Here’s the current situation:

  1. The MODBUS RTU device is successfully connected and communicating through KepserverEx.
  2. We have access to the following suites in KepserverEx: IoT Gateway, Modbus, and Advanced Tags.
  3. I can unlock the device's electronics and enable it to enter the mode required to modify the serial number.
  4. The issue lies in accessing and modifying the S/N parameter via the KepserverEx server.

Thank you in advance for your help! Any pointers or guidance will be invaluable.

Best regards,

1 reply

R
rajskumar16-Pearl
16-Pearl
January 14, 2025

Hello,

 

The Modbus Serial Driver supports standard function codes as per the manual (refer to the section "Function Codes Description"). Are you referring to a custom-built frame with a function code other than those specified in the manual?

 

I recommend opening a support ticket with the Kepware Technical Support team to better understand the issue and provide a quick and effective resolution. Here is a link to the My Kepware login page where a ticket can be submitted:

 

https://my.kepware.com/s/login/

 

    Terms & ConditionsCookie settingsAccessibility statement