# Bad unspecified error when writing to plc

**URL:** <https://forum.inductiveautomation.com/t/bad-unspecified-error-when-writing-to-plc/19154>\
**Category:** Ignition\
**Created:** [August 8, 2018, 7:20pm UTC](https://forum.inductiveautomation.com/t/bad-unspecified-error-when-writing-to-plc/19154 "2018-08-08T19:20:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![drinaldi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/drinaldi/32/32068_2.png) [@drinaldi](https://forum.inductiveautomation.com/u/drinaldi)\
**Post date:** [August 8, 2018, 7:20pm UTC](https://forum.inductiveautomation.com/t/bad-unspecified-error-when-writing-to-plc/19154/1 "2018-08-08T19:20:16Z")

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![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/0/07188faa2ae5439b8fa04e994e1566f4861f1834.jpg)

jut restored my project onto the clients production server. whenever I try to “write” to the PLC I get this error. Has this happened to anyone?  
Thanks

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**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\
**Post date:** [January 3, 2019, 3:49pm UTC](https://forum.inductiveautomation.com/t/bad-unspecified-error-when-writing-to-plc/19154/2 "2019-01-03T15:49:19Z")

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Hi drinaldi, I am seeing the same thing on mine right now… Did you manage to figure it out?

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**Author:** ![drinaldi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/drinaldi/32/32068_2.png) [@drinaldi](https://forum.inductiveautomation.com/u/drinaldi)\
**Post date:** [January 3, 2019, 4:52pm UTC](https://forum.inductiveautomation.com/t/bad-unspecified-error-when-writing-to-plc/19154/3 "2019-01-03T16:52:59Z")

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Sorry Dion, it’s been awhile, I dont remember what resolved it. It might have just been a network issue.  
-David

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**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\
**Post date:** [January 3, 2019, 5:10pm UTC](https://forum.inductiveautomation.com/t/bad-unspecified-error-when-writing-to-plc/19154/4 "2019-01-03T17:10:44Z")

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Not a problem, I think the issue resolved itself when I unchecked a “Word swap 32 bit tags” box in my PLCs Modbus Server Settings.