Design and Implementation of HMI for S7-200 PLC
Baocheng Zhang · Mechanical Engineering & Automation · 2009
One kind of human and machine interface(HMI) for S7-200 series PLC based on programmable terminal is introduced in this paper.And with a cargo sorting system,the hardware and software interfaces are realized between the MD204L type programmable terminal and the S7-200 series PLC.