# VirtualDevices do not show up in node-red-contrib-ccu

**URL:** <https://discourse.nodered.org/t/virtualdevices-do-not-show-up-in-node-red-contrib-ccu/96592>\
**Category:** General\
**Created:** [15 April 2025 19:29 UTC](https://discourse.nodered.org/t/virtualdevices-do-not-show-up-in-node-red-contrib-ccu/96592 "2025-04-15T19:29:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![DRapp](https://avatars.discourse-cdn.com/v4/letter/d/7feea3/32.png) [@DRapp](https://discourse.nodered.org/u/DRapp)\
**Post date:** [15 April 2025 19:29 UTC](https://discourse.nodered.org/t/virtualdevices-do-not-show-up-in-node-red-contrib-ccu/96592/1 "2025-04-15T19:29:34Z")

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Currenty I am using a Homematic CCU3 thru FHEM (which is somewhat outdated). A whole bunch of HmIP-RF thermostats are connected with the CCU3, a lot of them grouped as virtual devices.  
I just started to use Node-RED on my laptop (Node-RED v4.0.0, Node.js v22.14.0, Windows\_NT 10.0.19045 x64 LE). After installing node-red-contrib-ccu I added various nodes. In order to read e.g. temperatures, I used a "value" node. In this node's settings I added a CCU object. Unfortunately, I'm not physically in the same LAN as my CCU3 but only connected via VPN. Anyway, after setting the CCU adress to the correct IP and the listen and Init address to my laptop's IP, I was able to connect to the CCU3 and to see all my HmIP-RF devices. With these devices I can read and write datapoints like SET\_POINT\_TEMPERATURE. However, the list of VirtualDevices is just empty. Hence I can neither read nor write to them.  
Do I need RedMatic to be installed on the CCU3 in order to see virtual devices?

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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:** [14 July 2025 19:29 UTC](https://discourse.nodered.org/t/virtualdevices-do-not-show-up-in-node-red-contrib-ccu/96592/2 "2025-07-14T19:29:46Z")

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