# Get ModBusTCPServer device Communication failure status

**URL:** <https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665>\
**Category:** CODESYS\
**Tags:** pfc200\
**Created:** [April 9, 2026, 6:37am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665 "2026-04-09T06:37:18Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![jahu](https://avatars.discourse-cdn.com/v4/letter/j/3ab097/32.png) [@jahu](https://www.wago.community/u/jahu)\
**Post date:** [April 9, 2026, 6:37am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665/1 "2026-04-09T06:37:18Z")

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How can I check the status of a communication error so that I can use it in the PLC program?

 ![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/2/2bc5a241aa55fdd6393efc237dd8cd240aa34ea8.png)

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**Author:** ![antauva](https://avatars.discourse-cdn.com/v4/letter/a/4bbf92/32.png) [@antauva](https://www.wago.community/u/antauva)\
**Post date:** [April 9, 2026, 8:08am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665/2 "2026-04-09T08:08:33Z")

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every object in the tree has Module IEC Object, that you can use to get status and error in the PLC program.  
For example:

 ![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/9/945e3ec6641b27ad8ca1f74cf9156e0e101e781b.png)

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<div class="post-metadata">

**Author:** ![jahu](https://avatars.discourse-cdn.com/v4/letter/j/3ab097/32.png) [@jahu](https://www.wago.community/u/jahu)\
**Post date:** [April 9, 2026, 8:13am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665/3 "2026-04-09T08:13:46Z")

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I know that, but in my case, this is all I have:

 ![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/5/5709537eda9b61f591a94f46b16b523ef86fe6c4.png)

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**Author:** ![bjornidar](https://avatars.discourse-cdn.com/v4/letter/b/5fc32e/32.png) [@bjornidar](https://www.wago.community/u/bjornidar)\
**Post date:** [April 9, 2026, 8:15am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665/4 "2026-04-09T08:15:10Z")

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You can use the ComState of each slave

 ![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/8/87e46ace0442698964143506dd93e867c120ada8.png)

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<div class="post-metadata">

**Author:** ![antauva](https://avatars.discourse-cdn.com/v4/letter/a/4bbf92/32.png) [@antauva](https://www.wago.community/u/antauva)\
**Post date:** [April 9, 2026, 8:19am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665/5 "2026-04-09T08:19:34Z")

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you have strange type of DS18B20, should be Modbus TCP Server…

 ![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/8/8f41f3f015f49e41056e71e447bd6efd98b733c0.png)

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<div class="post-metadata">

**Author:** ![jahu](https://avatars.discourse-cdn.com/v4/letter/j/3ab097/32.png) [@jahu](https://www.wago.community/u/jahu)\
**Post date:** [April 9, 2026, 8:23am UTC](https://www.wago.community/t/get-modbustcpserver-device-communication-failure-status/2665/6 "2026-04-09T08:23:36Z")

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![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/6/6263b6a8010271abd59161eb68770969a425dea0.png)

 ![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/6/61dc64387f64c84a30e974ba019848c15b1a9a74.png)

![image](https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/6/623ae49f742bb3a0704b3a7b5b56dc08d411a1ee.png)