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Visual Basic to PLC connection

Visual Basic to PLC connection

Visual Basic to PLC connection

(OP)
Hi there,

Is it possible to use VB as a front end and communicate with a Siemens S7-400 (CP443-1?)?
At our plant we are using WinCC for visualisation, now for a new application I should need about 8 new licenses of WinCC which is very expensive. That why I thought of VB.
The only thing we have to do, when a certain production line comes in stop mode, I need to send the date and Timestamp to a SQL-server and (were the plc connection comes in) let a light flashing.

Thanks in advance

RE: Visual Basic to PLC connection

I believe there are several companies out there that have a VB-PLC communication interface.  You might take a look at www.softwaretoolbox.com's INGEAR as one potential source.

RE: Visual Basic to PLC connection

Using VB is quite simple and you could get some examples from the siemens A&D website.  You will however need some OPC complient software Simatic net industrial ethernet, so that your PLC can communicate with your VB application.  If you already have a winCC application you may already have this package installed.  Hope this helps.
  

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