![]() In the past when one of the old style L2 profibus Masterdrives failed and we couldn't find them anymore because they have been obsolete for 20 years I replaced them with the newer masterdrives (MC, CUMC) drives. I have a S7155U that currently talks to some Siemens Masterdrives (SC, CU2) over Profibus through an IM308C module. Hello, I read your thread on the internet about s5 to s7 communications. If you would like a copy of the framework I used.IM-306, S7 and S5 you can send me an email at and I'll be happy to share. Oh I stuck the OP on MPI because I had the extra port and it was easy. You must pay close attention to the fact that everything is moved as bytes! The drawback is the programing is not for the novice. The feature here is that you have the data avalible in data blocks where you can get your arms around it in the S5. As I recall there was a working example as well. There is a S5 funciton block avalible from the Siemens web site, FB192 that handles the transfers. The DP control overhead pushed my byte count over the limit. I did this because I had too much I/O to move any other way. It still looks like physical I/O in the s7 but in the s5 the data resides as data words. Rather than map the profibus as I/O (DP) through the IM 306 I set up two data blocks in the 115. I'm doing this a bit differently with a 115/944b and a 318dp with a TP-27 as the OP.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |