To reduce the error rate and packet loss rate of transmission data in embedded soft PLC system. a circle buffer of embedded soft PLC system was designed. mathematical model of the circle buffer was established. The state equation and the state transition probabilities of the circle buffer were analyzed. https://www.ivoryjinelle.com/amazing-offer-Ohio-University-Ohio-Bobcats-iPhone-13-Pro-Max-Impact-Case-p22134-limited-grab/