Profibus and OPC servers

benji · Nov 9, 2008

hello

im trying to connect s7 200 plc with computer software (opc client)
buy using an opc server on the same computer
so im worried about the plc/opc server connection
should i buy an ethernet module to be able to do that?
is it possible with Profibus dp (the s7-200 can be a slave only)?
any other communication options?

thanks in advance for any help

JesperMP · Nov 10, 2008

The OPC Server from Siemens is called PC Access (6ES7840-2CC01-0YX0). It works with PPI and ethernet.
There are several 3rd party suppliers which you can locate easily with a little web searching.

benji · Nov 10, 2008

thanks jesper,, i suppose the programming cable( ppi/usb ) still works,,there is no need to buy an ethernet module

true?

nonuke · Nov 10, 2008

Yes, you can use the same cable

benji · Nov 10, 2008

thank you guys

benji · Nov 10, 2008

anyways i was wondering if i can include another device into the ppi/usb cable
is there a ppi cable with more than 2 ends?

what advantage does ethernet give over ppi cables?

nonuke · Nov 11, 2008

Cable with more than 2 PPI ends? no, I don't think so.

what advantage does ethernet give over ppi cables?

You can't find a PPI switch.

benji · Nov 11, 2008

no more than 2 ends ppi cables? isnt ppi the same as rs-485 which can address up to 32 devices?

what do you mean a ppi switch?

Profibus and OPC servers

benji

Member

JesperMP

Lifetime Supporting Member + Moderator

benji

Member

nonuke

Member

benji

Member

benji

Member

nonuke

Member

benji

Member

Similar Topics