# Frequent "Error writing to OPC address" Problem

**URL:** <https://forum.inductiveautomation.com/t/frequent-error-writing-to-opc-address-problem/3199>\
**Category:** Ignition\
**Created:** [August 19, 2011, 5:15pm UTC](https://forum.inductiveautomation.com/t/frequent-error-writing-to-opc-address-problem/3199 "2011-08-19T17:15:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![skallepalli](https://avatars.discourse-cdn.com/v4/letter/s/54ee81/32.png) [@skallepalli](https://forum.inductiveautomation.com/u/skallepalli)\
**Post date:** [August 19, 2011, 5:15pm UTC](https://forum.inductiveautomation.com/t/frequent-error-writing-to-opc-address-problem/3199/1 "2011-08-19T17:15:07Z")

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Dear Inductive Team,

We are facing very frequent Error writing to OPC address problem using Ignition Transaction groups.

Some groups are set in Bidirectional OPC wins and some few are set in OPC to DB. We are using Ignition 7.2.7 version.

What are the possibilities to get this error ?

Thank you

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**Author:** ![Travis.Cox](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@Travis.Cox](https://forum.inductiveautomation.com/u/Travis.Cox)\
**Post date:** [August 19, 2011, 5:51pm UTC](https://forum.inductiveautomation.com/t/frequent-error-writing-to-opc-address-problem/3199/2 "2011-08-19T17:51:36Z")

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Can you post the wrapper.log or any any error log that can help us diagnose the problem?

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**Author:** ![skallepalli](https://avatars.discourse-cdn.com/v4/letter/s/54ee81/32.png) [@skallepalli](https://forum.inductiveautomation.com/u/skallepalli)\
**Post date:** [August 20, 2011, 9:37am UTC](https://forum.inductiveautomation.com/t/frequent-error-writing-to-opc-address-problem/3199/3 "2011-08-20T09:37:02Z")

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Dear Travis,

Please find the enclosed attachment for wrapper.log file.

Thank you  
[wrapper.log](https://us1.discourse-cdn.com/inductiveautomation/original/1X/db8b7cc6aeaec7fa5cd15cd7c82aed435fe69f75.log) (11.3 KB)

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**Author:** ![Travis.Cox](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@Travis.Cox](https://forum.inductiveautomation.com/u/Travis.Cox)\
**Post date:** [August 22, 2011, 4:51pm UTC](https://forum.inductiveautomation.com/t/frequent-error-writing-to-opc-address-problem/3199/4 "2011-08-22T16:51:15Z")

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It looks like those errors are coming from Kepware. Take a look at Kepware’s console to see if anything sticks out at you.