Hello Forum,

I have a few questions regarding VB and PLC's. Is it possible to control a PLC using a VB program? I would only need to have a STOP and CONTINUE function sent to the PLC, nothing more than that as far as controlling the PLC.

I would be using Microsoft Visual Studio 2010 Professional and I would be attempting to control a Siemens S7 300 PLC with either the 312, 314, or 315 processor. I am not sure which processor is in it right now. I would be able to communicate either through ethernet or serial port (RS232) connection.

Also, is it possible to record data from the Siemens S7 300 PLC using a VB program to either a CSV file or a Excel 2010/2007 file?

Thanks for you help and for your time!!