Mize

Hello all,

I thought to drop back to report about my success. It was pretty hard to find information about the subject

but with a lot of patience and different approaches I managed to get the damn thing working.

What I used was software toolbox TOP opc-server to open the PLC registry to labview and then it was more

about creating the actual logic program with STEPS7. Used SFC14 ja SFC15-functions and data blocks to bypass

the 4 byte continuous limitation of PLC.

It has been a steep learning curve but I have enjoyed programming with labVIEW.

-Mize

First of all, thank you dswaine for you reply. It provided help.

Since my first post things have evolved to a point where I can give simple boolean orders to the PLC, which then inserts pre-defined attributes to the ACH550-01 motor/frequency converter. The motor runs and there is a OPC server opening the PLC registry to LabVIEW via datasocket connection.

Now I am in a need of advice on how to write hex-values in labVIEW to let say address: PQW 258. I think I need something like slider which converts the values from 0-100 % to 0-4000hex and then writes this value to OPC-address. Would anyone have an example on how to do this?

-Mize

Hello,

I