# Lost of comm in TCP

**URL:** <https://discourse.nodered.org/t/lost-of-comm-in-tcp/89039>\
**Category:** Industrial\
**Tags:** function-node\
**Created:** [28 June 2024 11:24 UTC](https://discourse.nodered.org/t/lost-of-comm-in-tcp/89039 "2024-06-28T11:24:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Javierv](https://avatars.discourse-cdn.com/v4/letter/j/85f322/32.png) [@Javierv](https://discourse.nodered.org/u/Javierv)\
**Post date:** [28 June 2024 11:24 UTC](https://discourse.nodered.org/t/lost-of-comm-in-tcp/89039/1 "2024-06-28T11:24:10Z")

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Hellow, I am developing a software fot to read modbus TCP and register data into a txt file. The problem I have seen, is in a lost of comunication in the tcp, the reading values, is locking, not shows 0. In the text box, appears the last frozen value. How can I to know when is a lost of comm?  
Thankyou.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [27 August 2024 11:24 UTC](https://discourse.nodered.org/t/lost-of-comm-in-tcp/89039/2 "2024-08-27T11:24:22Z")

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