# Need a bit of app development help to get an modbus PLC to work with homey **URL:** \ **Category:** Questions & Help\ **Created:** [February 10, 2020, 2:03pm UTC](https://community.homey.app/t/need-a-bit-of-app-development-help-to-get-an-modbus-plc-to-work-with-homey/25725 "2020-02-10T14:03:34Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Henrik\_Bjerre](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/henrik_bjerre/32/18371_2.png) [@Henrik\_Bjerre](https://community.homey.app/u/Henrik_Bjerre)\ **Post date:** [February 10, 2020, 2:03pm UTC](https://community.homey.app/t/need-a-bit-of-app-development-help-to-get-an-modbus-plc-to-work-with-homey/25725/1 "2020-02-10T14:03:34Z")
Hello there I’m new to this, but I am using homey as part of my journeyman final electrician’s project. I have some Concepts where one of them would require someone with a little more app expertise than me. In short, I would like it to be possible to get the homey app to connect to a Modbus plc. This would enable me to control a frequency converter and motor control. I cannot figure out how to do this with the homey app tool however. Furthermore, I have some Concepts for what specifically I would like the app to show, and control which I could use some input with. I am Danish and I’ll be happy to share my FB contact info if anyone could enlighten me ---
**Author:** ![Adrian\_Rockall](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/adrian_rockall/32/13209_2.png) [@Adrian\_Rockall](https://community.homey.app/u/Adrian_Rockall)\ **Post date:** [February 10, 2020, 6:53pm UTC](https://community.homey.app/t/need-a-bit-of-app-development-help-to-get-an-modbus-plc-to-work-with-homey/25725/2 "2020-02-10T18:53:50Z")
How are you planning to connect to the PLC, via TCP/IP? Do you understand the MODBUS protocol to implement it? What GUI interface do you see yourself using in Homey to be able to control the devices?