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Communication via PN/PN Coupler's and PN Switch

Created by: voluhar at: 2/3/2011 9:30 AM (7 Replies)

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2/3/2011 9:30 AM	Rate (0)
voluhar Posts: 4 Rating: (0)	Hello All, I have a question for communication experts. So, I have configuration like it is in attached picture. I'm interested how can I communicate between PLC1, PLC2, PLC3 and PLC4. I know it's not the problem if we have only switch or coupler's between PLC's, but now I have coupler's connected to Profinet switch !!! Is this possible andif it is, how? Some example? Thanks in advance! Regards to all. Attachment Picture.jpg (1204 Downloads)
voluhar Posts: 4 Rating: (0)
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2/3/2011 10:36 AM	Rate (0)
Ammy Platinum Member Joined: 4/19/2008 Last visit: 11/21/2024 Posts: 1525 Rating: (159)	voluhar Hello All, I have a question for communication experts. So, I have configuration like it is in attached picture. I'm interested how can I communicate between PLC1, PLC2, PLC3 and PLC4. I know it's not the problem if we have only switch or coupler's between PLC's, but now I have coupler's connected to Profinet switch !!! Is this possible andif it is, how? Some example? Thanks in advance! Regards to all. Hi voluhar, Switch is not a Problem, Basically you need to define the PN/PN Coupler in to the Hardware Configuration of both side PLC. & according to that you have to conenct the Connection. here is the Manual for the PN/PN Coupler. look on the Chapter 3, 4 for configuration Detail
	Ammy New for every one.............. “No duty is more urgent than that of returning thanks.” If Problem Solved......! I can't help you privately - please post in the Forums
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2/3/2011 11:32 AM	Rate (0)
voluhar Posts: 4 Rating: (0)	Hello Ammy, thanks for your very quick answer. I think it's not so very easy. I want to havecommunication between allPLC's, that means PLC1<--> PLC2, PLC1 <--> PLC3, PLC1 <--> PLC4, PLC2 <--> PLC4 etc. If I will define on both communicating PLC's (in HW Config) only the Input and Output area, how the system (or thePLC's)will know where to send (on which PLC)and from (which PLC)where to receive the right data? Regards.
voluhar Posts: 4 Rating: (0)
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2/3/2011 11:47 AM	Rate (0)
Ammy Platinum Member Joined: 4/19/2008 Last visit: 11/21/2024 Posts: 1525 Rating: (159)	voluhar Hello Ammy, thanks for your very quick answer. I think it's not so very easy. I want to havecommunication between allPLC's, that means PLC1<--> PLC2, PLC1 <--> PLC3, PLC1 <--> PLC4, PLC2 <--> PLC4 etc. If I will define on both communicating PLC's (in HW Config) only the Input and Output area, how the system (or thePLC's)will know where to send (on which PLC)and from (which PLC)where to receive the right data? Regards. Hi Voluhar, In the 4.2.3 Example: Configuring with STEP 7 you will Finf the Example, in that 1st subnet there is a IN data & in other Subnet there is a OUT data is define so on that basis it will get the undersatnd for Software & for Hardware it is depend on the Subnet 1 & 2 Connection. have a look on 3.2 Connections Once you will configured for 1 PN Coupler it is easy to used for other one
	Ammy New for every one.............. “No duty is more urgent than that of returning thanks.” If Problem Solved......! I can't help you privately - please post in the Forums
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2/3/2011 12:17 PM	Rate (0)
voluhar Posts: 4 Rating: (0)	Hi Ammy, that's everything OK if two PLC's are connected directly via PN/PN Coupler, but now we have PN Switch in between ???!!! And from the picture you can see that 3 Coupler's are connected to PN Switch ! Any sugestion? Thanks. Regards.
voluhar Posts: 4 Rating: (0)
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2/4/2011 10:37 AM	Rate (0)
Ammy Platinum Member Joined: 4/19/2008 Last visit: 11/21/2024 Posts: 1525 Rating: (159)	voluhar Hi Ammy, that's everything OK if two PLC's are connected directly via PN/PN Coupler, but now we have PN Switch in between ???!!! And from the picture you can see that 3 Coupler's are connected to PN Switch ! Any sugestion? Thanks. Regards. Hi Voluhar, Coupling both subnets Once you have assigned one end of the PN/PN coupler with modules, STEP 7 provides a help function which can be used to automatically assign the other end with suitable modules. However, this requires that the two bus ends X1 and X2 be in the same project or in a multiproject. Example In this example, we are assuming that the left end (X1) has already been assigned with modules. To apply the "Coupling" function to the right-hand end (X2), proceed as follows: 1. Double-click the PN/PN coupler X2 symbol. The "Properties - PN/PN coupler" window opens. 2. Switch to the "Coupling" tab and select: – In a multiproject select the project for "Project" and the Ethernet subnet of the coupler partner X1 for "Subnet" – In a (standard) project, the Ethernet subnet of the coupler partner X1 for "Subnet" 3. Under "Device name", select bus node X1. 4. The "Configuration for:" field is assigned automatically depending on which bus end is configured in the bus node. 5. Confirm your entries by clicking on "OK" All modules in end X2 of the PN/PN coupler are now added to end X1, and the I/O type and module lengths are specified. You can change the address areas of the modules without the configuration becoming inconsistent. Bus end X2 is now also entered as a bus node in the "Coupling" register of bus node X1. If you have specified the two ends of a PN/PN coupler as bus nodes using the "Coupling" function and you have a configuration between the two ends which is not consistent, an incorrect configuration will be flagged up when you run the "Save and compile" function in STEP 7.
	Ammy New for every one.............. “No duty is more urgent than that of returning thanks.” If Problem Solved......! I can't help you privately - please post in the Forums
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2/4/2011 1:04 PM	Rate (0)
voluhar Posts: 4 Rating: (0)	Ammy, thanks for your help, but I know all that fact's you wrote!!! Anyway, yesterday I got an confirmation from Siemens experts, that communication in that way IS NOT POSSIBLE! Regards.
voluhar Posts: 4 Rating: (0)
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This contribution was helpful to 4 thankful Users umencho Ammy Sarmiento JA O_Moderator

8/25/2016 10:28 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	New question published by k.dev is split to a separate thread with the subject How to connect two CPU via Profinet and programming. Best regards Min_Moderator

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