If 4-20mA signal connects to a 250 ohm resistor will become 1-5V which can be connected to the PLC 0-5V analog input. Then, how to scale the 1-5V into the 0-5V (0 to 4092)? What are the formula to convert 0 to 4092 into the value of 4-20mA signal? Do it appropinquity with original value?
Thank you.