Hello Kevvie;

Sinec L2 is not directly compatible with Profibus-DP, being a pre-existing protocol supported only by Siemens equipment. But many later Sinec L2 porocessors came with an option "DP-Standard" which allowed them to work with Profibus-DP masters, with some restrictions on the bus speeds (generally up to 1,5 MB) and data exchange limitations. This last should be no problem in the case of a Siemens drive using PPOx configurations, as this limits the number of bytes for each cyclic data exchange with the Profibus-DP master.

As you can see in the following extract from a Masterdrive manual (see the attached screencapture) the CB1 accepts Profibus-DP configurations:

12 Guidelines to changeover from CB1 to CBP - Siemens

You probably shall need to integrate the CB1 in your Step 7 Profibus Configurator (in HWConfig); you can find the required gsd file (SIEM8022,gsd) for the CB1 as a Profibus-DP slave in the following link:

PROFIBUS GSD files : MASTERDRIVES

Hope this helps,

Daniel Chartier

Kevvie

So in Profibus talk, would the CB1 card be a DPV0 slave?

Kevvie

Hello Kevvie;

In the sense that the CB1 only allows cyclic communications (and diagnostics)betwen master and slave, you could say that it is a DPV0 Profibus slave.

Here are some presentations on the same subject, first from the Siemens forum:

Difference between DP V0, DP V1 and DP V2

and from Profibus.com:

What are the differences between PROFIBUS V0, V1, and V2?

Hope this helps,

Daniel Chartier