SiePortal

The integrated platform for your product selection, buying and support workflow - bringing together Industry Mall and Online Support.

Products & Services
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
MySiePortal MySiePortal
{{(apiData.MySiePortal | filter:{'rank':1}:true)[0].title}} MySiePortal
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Cart ({{apiData.CartCount}})

Navigation

Profibus

8/31/2012 10:51 PM	Rate (0)
osirisf16 Posts: 22 Rating: (0)	Hey guys, i need your help. I am just doing some various connections between CPUs in STEP 7 using the PLCsim. I did a project with two 300 stations connected via ethernet, i use the SFC12/SFC13 (BSEND and BRCV). All working good. Now, i want to do the exact same job via profibus. I can't make connections in the network configuration. It doesn't allow me to establish connection between them. Please help. What i must do? And what communication blocks i must use?
osirisf16 Posts: 22 Rating: (0)
Suggestion To thank Quote Answer

9/1/2012 9:45 AM	Rate (0)
Ahmed.tn Bronze Member Joined: 11/10/2010 Last visit: 1/27/2025 Posts: 171 Rating: (9)	helo, to make connection between to CPU in profibus try this : https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&objId=25535972&load=treecontent&lang=en&siteid=cseus&aktprim=0&objaction=csview&extranet=standard&viewreg=WW good luck

Suggestion To thank Quote Answer

9/1/2012 10:24 AM	Rate (0)
Ayman Elotaify Platinum Member Joined: 5/28/2008 Last visit: 3/24/2025 Posts: 4520 Rating: (843)	Hello, CPU-CPU communication with SIMATIC controllers (compendium) How do you simulate communication between two CPU modules? Hope this helps.
	Ayman Elotaify
Suggestion To thank Quote Answer

9/1/2012 3:09 PM	Rate (0)
osirisf16 Posts: 22 Rating: (0)	Thanks Ahmed. This is helpful, but i was asking about connecting only two CPUs. Not three, the one as a master. But still, i was having this querry too, so thanks. Then how do i communicate between the CPUs? What communication blocks i must use? (i'm asking about the project you gave me, the three CPUs) Ayman, thanks too. The first link i downloaded it a few days ago but i didn't go throught all of it yet. About the second link that there are a bunch of communication blocks, i can't figure how they work. I did a project connecting two CPUs via ethernet, and by using the blocks BSEND and BRCV. That worked fine. But how about profibus? I can't establish the connections on each CPU as i did on ethernet configuration.
osirisf16 Posts: 22 Rating: (0)
Suggestion To thank Quote Answer

9/2/2012 4:07 AM	Rate (0)
Ayman Elotaify Platinum Member Joined: 5/28/2008 Last visit: 3/24/2025 Posts: 4520 Rating: (843)	Hello, The following FAQs may help you: What are the options for exchanging data between CPUs via MPI/PROFIBUS DP? PROFIBUS S7-300/400 CPs -- Configuring and programming communication -- Using communication blocks Hope this helps.
	Ayman Elotaify
Suggestion To thank Quote Answer

9/2/2012 1:17 PM	Rate (0)
osirisf16 Posts: 22 Rating: (0)	Thanks for the links. I will examine them and if i need more help, i'll be back
osirisf16 Posts: 22 Rating: (0)
Suggestion To thank Quote Answer
This contribution was helpful to 1 thankful Users Ayman Elotaify

Share this page:

Share this page on...