Skip to main content
P
PG_107187601-Visitor
1-Visitor
January 21, 2025
Solved

Kepware - Timeout when trying to add subscription for device.

  • January 21, 2025
  • 2 replies
  • 1325 views

Hello all.

 

I have the following setup

MES OPC DA <-> MES Kepware UA server <->  DeltaV Kepware UA server <-> DeltaV OPC DA

 

Been getting the following messages on 

1. MES Kepware UA server: OPC UA client | Failed to add subscription for device. | Status = 'Timeout trying to perform the operation.'

 

2. DeltaV Kepware UA server: OPC DA client | Read request timeout on device.

 

Been causing the MES OPC DA to fail opc read/write operations randomly.

 

Anyone has encountered these before and can provide advice on how to troubleshoot or resolve this?

Best answer by AKshara

Hi,

Appreciate your post with us.
Your current setup involves multiple layers, specifically connecting MES OPC DA to the MES Kepware UA server, DeltaV Kepware UA server, and eventually to the DeltaV OPC DA server. The timeout errors you are experiencing at both the MES and DeltaV levels warrant a systematic troubleshooting approach to identify and resolve the root causes.
To begin with, I suggest increasing the Connection Timeout(s) under UA session to 30 since the Connection request timeout is configurable between 1~30 seconds.

If the issue doesn't go away by increasing the timeout session, I suggest logging a case with us and sharing the Wireshark capture and Application report.

 

-Akshara

 

2 replies

A
AKshara14-AlexandriteAnswer
14-Alexandrite
January 21, 2025

Hi,

Appreciate your post with us.
Your current setup involves multiple layers, specifically connecting MES OPC DA to the MES Kepware UA server, DeltaV Kepware UA server, and eventually to the DeltaV OPC DA server. The timeout errors you are experiencing at both the MES and DeltaV levels warrant a systematic troubleshooting approach to identify and resolve the root causes.
To begin with, I suggest increasing the Connection Timeout(s) under UA session to 30 since the Connection request timeout is configurable between 1~30 seconds.

If the issue doesn't go away by increasing the timeout session, I suggest logging a case with us and sharing the Wireshark capture and Application report.

 

-Akshara

 

    V
    vnamboodheriCommunity Manager
    Community Moderator
    January 28, 2025

    Hello @PG_10718760, 

     

    It looks like you have a response on your topic. If it helped to answer 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.

    Terms & ConditionsCookie settingsAccessibility statement