VB / Delphi to Siemens S7-200

[Tom001]

is it possible to edit/read values and set markers in a Siemens PLC, ideally S7-2## using a pc running a visual basic / borland delphi program through a PC/PPI cable?

Or should i abandon the whole idea? I've had no luck so far and info is very thin on the ground


Regards

Tom

 

[pjcha]

Yes, you can do that, but you first transform the port 0 on RS232c and design you own protocol, or buy the OPC drivers from several SCADA supplies.

Best Regards


Paulo Afonso
Integration expert
EINAUS Eng, Lda
Portugal

 

[Mike6158]

Yep.. There is a company in Houston Texas that specializes in writing some very trick VB apps to interface with just about everyone's PLC. They are called Parijat Controlware, Inc. Website-

http://www.parijat.com

I attended a 2 day VB design class (more like a show and tell for their work) a few years back and I was impressed. They had a display at the ISA show (Houston) this year and they have really come a long way with their product. If we weren't so far into Wonderware and Intellution I would probably give them a shot at a small project.