[?]: Master s7-300 and Slave s7-200

ivan_euler · Post by **ivan_euler** » Thu Feb 12, 2009 9:44 am

anybody have tried connecting an s7 300 plc 315-2DP as master and an S7 200 (with profibus interface) profibus connection.?

ill will have an hmi connected to mpi to the 315 cpu and s7 200 connected as slave to the 315 using the profibus connection.

is it possible to control all the input and output of the s7 200 using this kind of connection?

is there any SFB needed to be loaded

Thanks to all>>>>>

marcs7 · Post by **marcs7** » Thu Feb 12, 2009 11:19 am

the EM277 make a I/O virtual in the V memory.

you master write the ouput and read the input, the input and the output gone in the V memory.
tips
here
if you configure the slave in consistency area dont forget the SFC15 SFC14.

ivan_euler · Post by **ivan_euler** » Thu Feb 12, 2009 11:05 pm

this means that ill configure the s7 200 as EM then ican used simatic manager to prog ram the S7-200 dirctly using the 315 as master. Is that wat u mean?

Thanks

Umencho · Post by **Umencho** » Fri Feb 13, 2009 4:41 am

Hello
Look at How can you communicate data between the S7-200 and the S7-300 via PROFIBUS DP?
FAQ http://support.automation.siemens.com/W ... en/2615830
I hope this will answer to your questions.

regards