Application of PLC in Duck Egg Quality’s Nondestructive Automatic Detection & Grading System

Using the PLC of FX2N-48MR, we have designed 20 independent tunnels time-delaying system through 100ms unit timers according to the system request. By the transfer of RS485/232 and the series bus communication protocol the communication between PC and PLC has been realized which satisfies the duck egg quality’s nondestructive detection automatic classification function. Now the system has been applied in the Food Corporation of Xiantao and obtained the good result.