Siemens profibus and modbus

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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omar zedan
Posts: 236
Joined: Sat Oct 22, 2011 7:12 am

Siemens profibus and modbus

Post by omar zedan » Sat Jun 27, 2015 5:49 pm

Dear All
I have CPU 317-2pn/dp and I want to use it as a getaway i.e (I read data from circuit breakers via profibus and send this data via modbus RTU to central control) and I use CP341 module.
Did this CPU support this purpose (can I use this cpu in these tow protocols)?
What can I write in this program (Program architecture)?
Best Regards

Homeroid_BL
Posts: 259
Joined: Fri Apr 03, 2009 3:24 pm
Location: Bosnia and Herzegovina

Re: Siemens profibus and modbus

Post by Homeroid_BL » Sun Jul 19, 2015 8:56 pm

CP341 is expensive, and need a even more expensive dongle for Modbus. Since your CPU has a PN port, better use S7-1211+CM1241RS485 for a gateway. At least 85% cheaper.

omar zedan
Posts: 236
Joined: Sat Oct 22, 2011 7:12 am

Re: Siemens profibus and modbus

Post by omar zedan » Tue Jul 21, 2015 6:10 am

thank you so much

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