Posted 24 Feb 2021 (edited) hi I am traying to connect 10 plc's FX3U to a scada system, on the plc's there are a rs232db and FX3U-232ADP-MB cards. i have devices transmit the rs232 by lan or any thing I need (rut955) my problem is when i download the program on plc same times the communication go right , but if i powering pls off then on the communication fail down. I initialized the plc like photo https://drive.google.com/file/d/1Tr367wfVCRG6vvKcsOFyTKG_FExAsnVy/view can any one help me? sorry for my English Edited 24 Feb 2021 by gaith_sharabati Share this post Link to post Share on other sites
Posted 25 Feb 2021 Sorry I cant see your pictures due to the firewall on our network. Are you setting the communication settings on the first scan? http://www.inverter-plc.com/plc/FX_PLC/The%20FX-232ADP%20RS-232%20adapter%20module%20for%20FX%20PLCs.pdf Share this post Link to post Share on other sites