# AT!SCACT=1,0 returns ERROR

**URL:** <https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765>\
**Category:** MC/EM Series\
**Created:** [March 18, 2019, 4:36pm UTC](https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765 "2019-03-18T16:36:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dchou4u](https://avatars.discourse-cdn.com/v4/letter/d/e9a140/32.png) [@dchou4u](https://forum.sierrawireless.com/u/dchou4u)\
**Post date:** [March 18, 2019, 4:36pm UTC](https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765/1 "2019-03-18T16:36:53Z")

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Hi I am using the EM7455 module.

I can issue the AT!SCACT=1,1 to start the connection, but if I then do a AT!SCACT=1,0 to try to stop the connection, it returns an ERROR response. Anyone knows why? Thanks

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**Author:** ![dl5162](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/dl5162/32/2169_2.png) [@dl5162](https://forum.sierrawireless.com/u/dl5162)\
**Post date:** [March 18, 2019, 6:57pm UTC](https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765/2 "2019-03-18T18:57:52Z")

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You have it backwards. It’s  
`AT!SCACT=<state>,<pid>`

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<div class="post-metadata">

**Author:** ![dchou4u](https://avatars.discourse-cdn.com/v4/letter/d/e9a140/32.png) [@dchou4u](https://forum.sierrawireless.com/u/dchou4u)\
**Post date:** [March 18, 2019, 8:41pm UTC](https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765/3 "2019-03-18T20:41:41Z")

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phew I was dumb… thanks… 🙂

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<div class="post-metadata">

**Author:** ![dchou4u](https://avatars.discourse-cdn.com/v4/letter/d/e9a140/32.png) [@dchou4u](https://forum.sierrawireless.com/u/dchou4u)\
**Post date:** [March 18, 2019, 9:02pm UTC](https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765/4 "2019-03-18T21:02:44Z")

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> [@dl5162](#):
>
> AT!SCACT=\<state\>,\<pid\>

When data connection is not active, if I do AT!SCACT?, I see:  
!SCACT: 1,0

Is it also displaying it as ,? If so, I do not have any pid that is 0.

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<div class="post-metadata">

**Author:** ![dl5162](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/dl5162/32/2169_2.png) [@dl5162](https://forum.sierrawireless.com/u/dl5162)\
**Post date:** [March 18, 2019, 9:22pm UTC](https://forum.sierrawireless.com/t/at-scact-1-0-returns-error/15765/5 "2019-03-18T21:22:13Z")

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The query `AT!SCACT?[<pid>]`is documented to return  
`!SCACT: <pid>,<state>`

Yes, this is more than a bit confusing 🙂

But it is all documented in the AirPrime EM75xx AT Command Reference