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Communication of CPU 315 2PN/DP to Gefanuc system

Created by: Jazz_M at: 4/21/2011 5:00 PM (8 Replies)

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4/21/2011 5:00 PM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	Hi we have a S7 300 system of part no 6ES7315-2EH13-0AB0 CPU315-2 PN/DP, I have configured it as a DP slave. Now we want to communicate it to a Ge Fanuc PLC, I have given a GSD file of my CPU to them. I have a doubt about the GSD file as it has a partno 6ES7315-2E***-0AB0 is this correct GSD file for my system. we have made all the possible settings in my hardware configuration. We have configured the DP slave directly via the hardware configuration. Do we need to send the data via SFC14 and SFC15 to Ge Fanuc PLC. Please help me
	Last edited by: Tagolover at: 4/21/2011 5:22 PM Jazz
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4/21/2011 6:55 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 9/15/2025 Posts: 12408 Rating: (2717)	Tagolover Hi we have a S7 300 system of part no 6ES7315-2EH13-0AB0 CPU315-2 PN/DP, I have configured it as a DP slave. Now we want to communicate it to a Ge Fanuc PLC, I have given a GSD file of my CPU to them. I have a doubt about the GSD file as it has a partno 6ES7315-2E***-0AB0 is this correct GSD file for my system. we have made all the possible settings in my hardware configuration. We have configured the DP slave directly via the hardware configuration. Do we need to send the data via SFC14 and SFC15 to Ge Fanuc PLC. Please help me Hello Tagolover; First, your gsd file is the appropriate one for the CPU 315-2 PN/DP, the stars in the filename mean that it is applicalble to all CPUs starting with 315-2E... Second, when configuring a S7 as a slave you have no code to generate for the master. What you must do is make sure the CPU's Profibus interface is declared as a slave, and that the exchange table you build is made up od the same number of modules, of the same size, but these should be mirrored. If you use an output module on the master's configuration, it must match an input module on the slave. To illustrate, take the case of an S7 slave to a S5 master, shown in the following FAQ: http://support.automation.siemens.com/WW/view/en/6709721 The Profibus configurators are sufficiently different in the S5 and the S7 so you can interpret them in your own design. Do not focus on the master section, except for the definition of the 2 modules in its exchange table. Then study the slave section; notice the similar structure of the exchange table defined there. Build you ecxchange table for the master (GE) in terms of how many and how large modules you need to read/write to the S7 slave, then build in the slave the same structure, but mirrored. Notice you must use addresses located in the IO tables of the S7(IW0, QB26...) to setup the exchange table. Once you have these addresses setup and functionning, you can MOVE data from your DBs to/from these IO addresses for use in your program. Hope this helps, Daniel Chartier

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4/25/2011 4:46 PM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	Hi Dchartier Thank you for your reply, we have tried to communicate the S7315 PN/DP and S7400 as slave and Master, It worked fine we were able to send and recieve data. But in Between Ge fanuc and S7300 syste as DP master and slave we are still not able to communicate. What we found was when communicating S7400 & S730 0 we had both S7 sytem in netpro and when defining the data trasfer in configuration in DP slave the master DP address was seen in the DP slave property. Our question is if i configure the S7300 as DP slave and Gefanuc as DP master then where should i declare the master DP address in slave. I mean how will the Slave know which is master on the bus.
	Last edited by: Tagolover at: 4/25/2011 4:54 PM Last edited by: Tagolover at: 4/25/2011 4:47 PM Jazz
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4/25/2011 4:58 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 9/15/2025 Posts: 12408 Rating: (2717)	Hello Tagolover; I mean how will the Slave know which is master on the bus. It doesn't. It just knows that it is not the master (you have set it up as a slave) and it waits to be called by the master on the bus. If it is not called within an expected interval (the master downlads bus parameters to all slaves on startup), it declares a bus fault. You have not studied the example I priovided earlier, which would show the steps required when you are not dealing with a S7 master. You would have noticed there is no Netpro configuration. Try building the same exchange table between the GE master and the S7 slave as the one shown in the example, and see what you manage to send and recieve. If nothing more happens (you should have diagnostic information both in the gE and in the S7) please give us info on the configuration of exchanges you have setup in the GE and in the S7. Hope this helps, Daniel Chartier

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4/26/2011 8:01 AM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	Hi dichartier Well i did go through the link you gave me, I have the exact settings done, I have attached my project, In my project we have other Siemens PLC which are communicating to the same Gefanuc system as slave. But the change is that,they have used CPU 315 2 DP along with CP 342-5 profibus slave. We are not able to get any help from them with respect to configuration they have done. What is "COM PROFIBUS" file and how can i access this so that i can open Master_IM308C I have attached our project for your reference. Please help Attachment Cpu_30_1.zip (276 Downloads)
	Last edited by: Tagolover at: 4/26/2011 8:03 AM Jazz
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4/26/2011 1:25 PM	Rate (0)
Chilly_Garfield Posts: 316 Rating: (37)	Hi Tagolover, Tagolover Our question is if i configure the S7300 as DP slave and Gefanuc as DP master then where should i declare the master DP address in slave. I mean how will the Slave know which is master on the bus. In the slave you have to declare the interface as slave. --> He know, that is no master. Cyclic the master send a telegramm to all slaves and make the "master-slave-connection" to the slave. So you have toassign the master the slaves!
Chilly_Garfield Posts: 316 Rating: (37)
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5/1/2011 1:07 PM	Rate (0)
Jazz_M Gold Member Joined: 9/6/2008 Last visit: 5/7/2022 Posts: 1121 Rating: (86)	Hi guys Well finaly we have done with CP 343 -5 profibus module for S7300 and Gefanuc Slave master communication. Part No : 6GK7 342 5DA02 0XE0 It communicated perfectly, We have tested it and are in process of buying the CP card from Siemens. Followed very simple communication procedure and Gave the GSD for the CP card to GE guys and that it. But i still have a clarification, S7 315 2 PN/DP is a DP slave CPU, Why it did not communicate with Gefanuc system. Thanks guys, Any valueable suggestions are welcom.
	Last edited by: Tagolover at: 5/1/2011 1:08 PM Jazz
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5/2/2011 3:22 PM	Rate (0)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 9/15/2025 Posts: 12408 Rating: (2717)	Hello Tagolover; Well finaly we have done with CP 343 -5 profibus module for S7300 I'm glad you mentionned the part number of the CP you are using, a CP 342-5, a CP 343-5 is a very old part number for a Profibus-FMS slave module, and we would be entering a very different territory here... i am also glad that comms work with the CP 342-5, although I cannot explain why you would have a problem with setting the integrated Profibus port on the CPU. I have never experienced such a situation,when I have the correct gsd file for the CPU and I have set it up properly as a slave, which Ihave a feelingyou have done. This means extra cost for your project, unfortunately. But if you are satisfied it works well, maybe it is for the best. Hope this helps, Daniel Chartier

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This contribution was helpful to 1 thankful Users Jazz_M

6/25/2012 7:48 AM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 9/1/2025 Posts: 940 Rating: (119)	HiTagolover, I am engaged in a project where I need to communicate between GE PLC with S7 315 2DP. I have read the complete thread, it is very useful. Have you tried again with CPU 315 as slave without CP343-5? Because in my case also client is having only CPU 315 2DP (6ES7 315-2AF00-0AB0) without CP card. The present selection of CPU is not having option to configure as DP slave. Which way is better? - Changing the CPU which is having option to select DP -slave or Adding a CP 343 card in the existing configuration. Could you please upload your final backup.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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