仿真s7-200，用户可以再次仿真程序上下载程序，测试。可以模拟现场-Simulation s7-200, users can download the program again, emulator, test. Can be simulated on-site

An example of OPC data interface with PC. It contains a MS-Excel workbook along with a PLC Software written in STL S7 v5.5. It is also having a user manual which gives step by step quidance for configuring OPC server in PLC and OPC client in vba scr

It provides an example of OPC data interface as client in MS-Excel. The code is written in VB scr ipt in excel workbook which imports data from S7 PLC via OPC protocol through MPI interface.