thewalkerist
Member
Hello i have bought a S7-1200 (https://mall.industry.siemens.com/mall/uk/uk/Catalog/Product/6ES7212-1AE40-0XB0)
I have bought a loadcell and a transmitter for the loadcell (https://www.tunasistem.com.tr/tuna-ltr3-loadcell-transmitter)but the communication protocol here is rs-485. Now i do not know how to connect this transmitter to my plc. Which cable shoud i be using? Any example photos? And how can i scale a rs-485 value to 0-100 value? Now i knew how to make 0-10V or 4-20mA but what is the deal with the rs-485? In the place that should be written 0-10V there is a Rx/A+ and Tx/B-. I dont get it. How can i scale a non-existant value?How can i find out if its 0 or 27648 or something else? Can anyone please help me out?
I have bought a loadcell and a transmitter for the loadcell (https://www.tunasistem.com.tr/tuna-ltr3-loadcell-transmitter)but the communication protocol here is rs-485. Now i do not know how to connect this transmitter to my plc. Which cable shoud i be using? Any example photos? And how can i scale a rs-485 value to 0-100 value? Now i knew how to make 0-10V or 4-20mA but what is the deal with the rs-485? In the place that should be written 0-10V there is a Rx/A+ and Tx/B-. I dont get it. How can i scale a non-existant value?How can i find out if its 0 or 27648 or something else? Can anyone please help me out?