About s7-200 and vb communication

A

Thread Starter

Anonymous

I want to use vb to communicate with s7-200 via 485. I know a ocx in vb is mscomm.ocx , How can I program with it. Please help me!!!
 
I have the same problem, and i don't have any Idea how to do that but if you find anything please let me know.
 
D

Diego Muñoz

He, my english is bad.
With mscomm.ocx you can connect PLC with VB.

In the PLC you program a ASCCI protocol, and read this with mscomm.ocx

Other option is put in the PLC the tip & trick Modbus slave from Siemens.

And download ActiveX Modbus Master from http://mbserver.w3.to/

Put this ActiveX in your VB project. This run ok.

Good lucky.
 
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