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Communication PROFINET between CPU 315-2PN/DP and CPU 317-2PN/DP

Created by: RasaIcce at: 4/21/2009 4:59 PM (4 Replies)

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4/21/2009 4:59 PM	Rate (0)
RasaIcce Posts: 32 Rating: (0)	Hallo dears, I have a problem with communication between two CPU's thourought the PROFINET IO. Always I get system fault when I try to use FC11 or FC 12,but only on CPU 317-2.I don't know why. When I use FC's on CPU 315-2 everything is ok and I can communicate. Please someone to halpe me. Best regardes from RASA from Belgrade!!! Attachment XellaT_4.zip (185 Downloads)
RasaIcce Posts: 32 Rating: (0)	Last edited by: RasaIcce at: 4/21/2009 5:03 PM
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4/21/2009 5:07 PM	Rate (0)
INS Gold Member Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56)	Hi, Those FC11 and FC12 are only necessary when you use a CP343-1 as a ProfiNet IO Device or Controller. I think you use one of the2 PLC's as a controller and in the 2ndone you usea CP to getPN IO Device functionality. I can't check it here since I don't have Step 7 available at this PC.
	Best regards, INS
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4/21/2009 7:49 PM	Rate (0)
jklm Platinum Member Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (309)	Hello, In your project,i did not found any CP. It is only possible to use the CPU of your project as PROFINET IO Controller (+/- as DP master), not a IO device (+/- DP slave). Controller-Controller communication could be done via Profinet CBA, but in this case you need an option package called iMAP. A simpler solution is just to configure a S7-connection between both CPUs in NETPRO. Over that connection you can exchange data using the blocs: - Bsend/brecv - Usend/Urcv - Put - Get An example of BSend/Brcv can be found here. http://support.automation.siemens.com/WW/view/en/18516182 Instead of using the blocs for CPs, use the same FBs but the version for the CPU (in the standard lib). In theory, you could also use the so called "open IE" to realize a native TCP connection, but it is more complicated than an S7 connection between two S7-CPUs.
	Last edited by: edr at: 4/21/2009 8:39 PM Best regards jklm Suggestion was helpful? Feel free to rate it.
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4/22/2009 1:38 PM	Rate (0)
RasaIcce Posts: 32 Rating: (0)	Thank you so much!!! I am very satisfied with your recomandes. But , now I want to communicate between my two CPU's via PROFIBUS DP. I found some description ,but It was not enought .I was not be succesfull. If someone know,please answer me. Best regardes!!!
RasaIcce Posts: 32 Rating: (0)
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4/22/2009 5:10 PM	Rate (0)
CS Moderator Moderator Joined: 9/1/2005 Last visit: 11/8/2024 Posts: 4111 Rating: (195)	new question is published within a new thread too. Please discusse it withinthe threadPROFIBUS between CPU 317-2 PN/DP and CPU 315-2 PN/DP which is published within the same conference. Best regards CS Moderator
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards CS Moderator
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