# BACnet-Read - no data read possible

**URL:** <https://discourse.nodered.org/t/bacnet-read-no-data-read-possible/49922>\
**Category:** General\
**Created:** [19 August 2021 14:34 UTC](https://discourse.nodered.org/t/bacnet-read-no-data-read-possible/49922 "2021-08-19T14:34:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![projecttwo](https://avatars.discourse-cdn.com/v4/letter/p/65b543/32.png) [@projecttwo](https://discourse.nodered.org/u/projecttwo)\
**Post date:** [19 August 2021 14:34 UTC](https://discourse.nodered.org/t/bacnet-read-no-data-read-possible/49922/1 "2021-08-19T14:34:54Z")

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Hey all,  
i am trying to connect node-red via BACNet-IP to a climate-computer, but i am not able to read the data.

BacNET is working, as you can see in the following screenshot

 ![bacnet_kraess](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/9/d90988d2540263de7ee495bec4c3cee906ba4d0c.jpeg)

here my config:

bacnet device:  
 ![bacnet_device_ram-cc](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/2/629a937126a9c46a6874ec3c1c5de109593fbdb1.jpeg)

bacnet client (node-red):  
 ![bacnet_client](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/7/07a630a6d519f9d19771ed7681a47aef9e90b8cb.jpeg)

bacnet instance:  
 ![bacnet_instance](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/7/b7a872140b98b78dbd43aa3a3376a2180a56dcb8.jpeg)

bacnet property:  
 ![bacnet_properties](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/9/4954bb5988c4637e37cf0553ffd6e4ebdb93d579.jpeg)

Could anybody help how to configure node-red?

BR Bernd

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**Author:** ![mschmidt](https://avatars.discourse-cdn.com/v4/letter/m/97f17d/32.png) [@mschmidt](https://discourse.nodered.org/u/mschmidt)\
**Post date:** [2 September 2021 15:45 UTC](https://discourse.nodered.org/t/bacnet-read-no-data-read-possible/49922/2 "2021-09-02T15:45:29Z")

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I am new to Node-Red and I'm also trying to make BACnet/IP work. From what I see, in your Node-Red is your not actually "doing" anything. You have a BACnet discovery tool and that is sending out a Who-Is and pulling in Data for you to see. In your NR you have a connection setup but not requesting anything. did you link it to a Debug and see what the output is for it?

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**Author:** ![iiLaw](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/iilaw/32/14782_2.png) [@iiLaw](https://discourse.nodered.org/u/iiLaw)\
**Post date:** [3 September 2021 09:44 UTC](https://discourse.nodered.org/t/bacnet-read-no-data-read-possible/49922/3 "2021-09-03T09:44:07Z")

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Hi have you used the example flow?  
[https://github.com/BiancoRoyal/node-red-contrib-bacnet/blob/master/examples/bacnet-simple-demo.json](https://github.com/BiancoRoyal/node-red-contrib-bacnet/blob/master/examples/bacnet-simple-demo.json)

```auto
Also looking at your read I don't recognise what your trying to READ.
If your trying read a device description 
Your Type needs to be : 8
Your instance : 0453800
Your Property Id : 28
Multiple read : checked 

If want to retrieve everything for investigation
Your Type needs to be : 8
Your instance : 0453800
Your Property Id : 8
Multiple read : checked 

to read Analog value-94 00 Zentrale ...
Your Type needs to be : 2 // analog value
Your instance : 1   
Your Property Id : 85 // pv present valve
Multiple read :

```

When you use example flow does whois at least return Device 0453800 in the debug window?  
Where are you running Node-RED ?

Are you running the CC Discovery tool on the climate-computer ?  
I ask as I've found that if your running a BACnet explorer on a same PC as yabe room sat simulator/demo server then NR BACnet read or write will Fail. So that might be the issue.

A final note node-red BACnet works for simple read/write I've been running on my test rig for over a year with out any problems.

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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:** [2 November 2021 09:44 UTC](https://discourse.nodered.org/t/bacnet-read-no-data-read-possible/49922/4 "2021-11-02T09:44:58Z")

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