gsd for Siemens ET200 with Hart
I´m evaluating the possibility to use Freelance on a project. One specific requiremement is to connect a Siemens ET200 with Hart modules to Freelance. This is not a problem, but I need also to read in the 4 additional variables of the Hart transmitter (Nebenvariablen). For this purpose I guess I need a specific gsd file. The ones I´ve got, I can not see that the gsd file is reading the all the hart variables (except the pv and the diagnostics). Is anyone aware of such a gsd file?
In general HART values can be read over PROFIBUS DP via cyclic data transfer (DPV0) or acyclic (DPV1). I'm not sure which type the ET200 supports. With S900 from ABB (and the upcomming S950e) for example you can configure up to 4 additional HART variables (Nebenvariablen) per channel that will be included in the cyclic data exchange. I think only cyclic DPV0 transfer would be part of a GSD file, but I'm not sure here.
If ET200 does not support HART via DPV0 cyclic data exchange, then the only way that I see is the FDT/DTM technology mentioned by Sumit. But I'm not aware of Siemens providing a DTM for their ET200.