====== Connecting with LS Electric Cnet ====== [[:en-us_guide:hmi_connection|HMI Connection]] With LS Electric Cnet, the HMI reads and writes the product's ''M'' bits and ''D'' words by their Cnet variable names. Channels, wiring, and common communication settings are covered in [[:en-us_guide:hmi_connection:wiring|Wiring the HMI]]. Choose **the tool you use to write the product program** below. Settings and examples differ between the two. * [[:en-us_guide:hmi_connection:arduino:cnet|Arduino IDE · Cnet settings and example]] — Write a new SDK sketch. * [[:en-us_guide:hmi_connection:studio2:cnet|MPINO STUDIO2 · Cnet settings and example]] — After entering the Modbus RTU project's memory, ladder, and ''main'' code and finishing the first build and upload, copy the project and change the protocol. You do not need to build the Modbus HMI screen or test real communication first. After uploading the product program, connect the elements using **the addresses on the Cnet page you chose** in [[:en-us_guide:hmi_connection:screen|Building the HMI Screen]], then continue with [[:en-us_guide:hmi_connection:check|Checking Operation]].