Communication between PLC and PC whit Visual basic

[sharo]

Hello my friends,

I plan to develop an application in vb6 allowing the user to control the process remotely.

I want to know:

1 The communication between the PLC and VB must be established between VB and rslinx or a direct communication between Vb and Rslogix (5/500/5000)?

2 If there is someone with an example of VB code for configuration of the communication and read /write bit,please send me


While hoping to find answers to what I want, thank you for your help.

 

[Archie]

You can find a VB.NET example for the SLC500 and micrologix here:

http://sourceforge.net/projects/abdf1/

http://sourceforge.net/projects/advancedhmi/

The driver is direct communications and does not require RSLinx.

Is there any reason you are using VB6, since VB.NET is now a free download?

 

[kbradray]

OPC and Linx

From my experiences:

1. The first thing you need to do is have the version of Linx so that it can act as an OPC server.
2. Configure a OPC topic pointing to the PLC you wish to communicate.
3. Write the VB6 code to use the OPC server in Linx to communicate with the PLC.

Code Example:

See your PM with a code sample