# S7 in no TRUE or FALSE

**URL:** <https://discourse.nodered.org/t/s7-in-no-true-or-false/20104>\
**Category:** General\
**Created:** [9 January 2020 09:44 UTC](https://discourse.nodered.org/t/s7-in-no-true-or-false/20104 "2020-01-09T09:44:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shagoxx](https://avatars.discourse-cdn.com/v4/letter/s/87869e/32.png) [@shagoxx](https://discourse.nodered.org/u/shagoxx)\
**Post date:** [9 January 2020 09:44 UTC](https://discourse.nodered.org/t/s7-in-no-true-or-false/20104/1 "2020-01-09T09:44:46Z")

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Hi, i am trying to create a new project which is connected with my "industrial" section.

I am using Siemens PLC and HMI.

I want to connect the node red s7 IN to the PLC and take some data or read the data that is sending from it but when I "create" the connection, It doesn't appear anything.(I mean behind of the S7 it must to appear online or offline, and not.)

Can someone bring me some help please?

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**Author:** ![WalaDM](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/waladm/32/58115_2.png) [@WalaDM](https://discourse.nodered.org/u/WalaDM)\
**Post date:** [10 May 2022 13:42 UTC](https://discourse.nodered.org/t/s7-in-no-true-or-false/20104/2 "2022-05-10T13:42:54Z")

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what does Offline mean?

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [10 May 2022 13:52 UTC](https://discourse.nodered.org/t/s7-in-no-true-or-false/20104/3 "2022-05-10T13:52:26Z")

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