Posted 2 May 2018 Hi guys, I am setting up my test rig, to learn more about modbus communication. My test units are CJ2M-CPU31, SCU42 and 2 units MX2 inverters. I have already downloaded manuals W494 and W336, and I am searching for the type of RS-485 cable to be used. What type of comm. cable are you using, in setting up your modbus connection? Could you please share your preferred type of cable. Thank you. Cheers. Leo Share this post Link to post Share on other sites
Posted 2 May 2018 Leo, Please see the attached. Have had this for some time, but think it should still be good. Hope this helps. Belden Cables for Communications.pdf Share this post Link to post Share on other sites
Posted 2 May 2018 I typically use a pair of AWG18 cable especially for long distance communication (more than 150 meters). For short distance, a STP cable will suffice. It came already in a twisted-pair, so signal crosstalk issue already reduced. Share this post Link to post Share on other sites