4/18/2012 9:38 AM | |
Joined: 10/7/2005 Last visit: 10/18/2024 Posts: 3024 Rating: (1054)
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Hello Sarfraz Bhatti the simple solution is toadd a number of CP443-5 Extended to the system (e.g. 6GK7443-5DX05-0XE0), each willgive you a new Profibus Master system with up to 124 DP Slaves on it (a 6ES7414-3XM05-0AB0 CPU can for example handle up to 10 CP 443-5 Extended). Having said the above, 600 DP slaves on one CPU is quite something, and you are well advised to check the techncial specof your particular CPU to find out things like: 1.) Total I/O range (e.g. "only" 8 KByte for for the above mentioned 414-3 CPU, if each of your 600 DP Slaves has on average 14 Bytes of I/O, you are already out of luck) 2.) The onboard MPI/DP port maybe limitedwith regards to the numberof DP slaves that it can handle(only 32 DP Slaves can for example be connected for theabove mentioned414-3 CPU). I hope this helps |
Last edited by: fritz at: 4/18/2012 9:42 AMtypos Cheers |
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4/18/2012 12:32 PM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating: (147) |
Dear Sarfraz Bhatti, do you have any description about the PB slaves? What are they for(i.e. are they all drives)? What the PB in general is concerning, FRITZ is right (again! ) Sometimes a wrong question can lead to a wrong system design. Than more information your share with us, than more we can support you. Regards. |
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4/19/2012 9:20 AM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating: (147) |
Dear Sarfraz Bhatti , you have a quite big installation. Everything is up to your requirements and I don't know howcritical your plant is, butis this not an application for a S7-417H with profibus rings.....? Alternativly you can also think on distributing your system. Adding more than one CPU. Just think on a failure of the onlyCPU in your system! If your S7 is just collecting data and your application is not critical a single CPU will do. Regards. |
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4/19/2012 10:05 AM | |
Joined: 4/14/2010 Last visit: 8/6/2024 Posts: 525 Rating: (11) |
Dear TIBI68, many thanks for message in condition of 2 CPU with 1 rack which one CP will be required for CPU to CPU communication & both CPU to 1 WinCC v7.0 PC communication...??? Thanks, Regarded, |
MS |
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4/22/2012 9:23 AM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating: (147) |
DearSarfraz, you have two options wheninstalling two CPU's into your system. Option 1: Redundant S7-400H (i.e. 2 x 417-4H CPU's) In case of a redundant S7-400H system no additional CP's to communicate between the two CPU's is required.This is done by so called "synchronisation modules". Twopieces in each CPU and withfiber optic cables in between.Two CP443-1 Ethernet CP's will be required to connect withyour WinCC. This is a fully backup of your main system.Meaning, if onefails the other willautomatically take over. I suggest you to get a "bundle"system.Pre-installed,tested and ready to install into your cabinet. Option 2: 2 singleS7-400 (i.e. 2 x 417-4 CPU's) In this case you divide the tasks between the two CPU's. There is no backup of the system in case of loosing one. For communicationbetween the CPU's I suggest youCP443-1 Ethernet CP's. Alternativly you could use internal profibus/net as well.Same is the casefor the connection with your WinCC. First Option is of course a totally different system design andis more expensive! In secondoption it is maybe possible to use S7-300 CPU's as well to reduce furthercosts. It's all a question of requirements and available budget. Regards. |
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5/9/2012 8:33 AM | |
Joined: 4/14/2010 Last visit: 8/6/2024 Posts: 525 Rating: (11) |
Dear TIBI68 many thanks for message in second option can i install both CPU in one Rack and it will communicate automatically with each other or any cable required..??? and for two CP443-1 i have one CP1612 on PC side how can i connect 2 CP443-1 with one CP1612 is any router required or any alternative model for CP1612 with 2 RJ45 port..??? Thanks, Regards. |
MS |
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5/9/2012 9:50 AM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating: (147) |
Dear Sarfraz Bhatti , yes you can install them into one rack. In exampleinto an UR2-H. The rack is initially designed for redundant H-CPU's, but the rack does not care which CPU you will place inside.This rackis divided into 2 x 9 slot's. If you use standard CPU's they will not communicate with eachotherautomatically. This feature is only available with redundant H-CPU's through fiber-optical synchronisation modules. The new 443-1 CP's have a build-in, two port switch. So you can connect CP1 with CP2 and CP2 with your WinCC, without any additional device. Again, I suggest you to use individual S7-300 CPU's. One for each slavearea. Regards. |
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5/9/2012 10:29 AM | |
Joined: 4/14/2010 Last visit: 8/6/2024 Posts: 525 Rating: (11) |
Dear TIBI68. Again, I suggest you to use individual S7-300 CPU's. One for each slavearea. many thanks for your message its mean i can use 2 standard CPU414-3DP in UR2-H for communicaion with each otherautomatically..??? and for H-CPU what's model no. for fiber-optical synchronisation modules & CPU 417 & CP's..??? in case of S7-300 for each slave area how can i monitor all CPU300 in one Room on one Display..?? how can i communicate all cpu300 with each other and with CP1612..?? could you please share me your e-mail address i want to send you file. Thanks, Regarded. |
MS |
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