Posted 24 May 2022 Hello, I am rather unexperienced with PLC's but have some experience. I Currently have 2 Lexium ILS1 motors which we want connected over RS485. I have read a couple of manuals. I have found which format they want to receive their data and what the pinout of their pre assmbled cable is (which hasn't been delivered yet). I am currently unsure about a couple of things. The wiring the formatting of my data i'm sending, and the program. The pictured below show my motor (which runs when i connect it to the PC and run it using the software provided so it is in working order) and the PLC with option port (which i used to transmit data to another PLC, so again i can't blame the hardware for being at fault here). However when i connect the cable and try to communicated I Don't see the LED light up. I followed Lexiums guide on which pins to use. But i figured for good form i might include these pictures to be certain hardware is correct. Finally here is my program. I followed Omrons quick start instructions. But: my send ready flags never become high and the way data has to be formatted for these lexiums seems very labour intensive. But this is how i understood it needed to be done. Am i doing something (or a lot) wrong here? I hope someone can help me out here! If any further information is needed i'll do my best to provide it. Kind regards. Share this post Link to post Share on other sites
Posted 25 May 2022 First check the cable - pin 1 is negative and pin 2 is positive on the Omron side if I remember correctly. Share this post Link to post Share on other sites