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Communications between 2 HMI's and S7-200

4/28/2008 11:42 AM	Rate (0)
Noksu Member Joined: 3/11/2008 Last visit: 2/16/2023 Posts: 10 Rating: (0)	Hi, CantwoMP277 or TP177B or TP277 be connected to S7-200 (CPU 224or 226)trough PPI and is it really possible to connect 2 panels troughPPI to somesort of network with S7-200? Will this work with simply using profibus cable as PPI cable which would be connected to one of the CPU ports? Also i would like to know if its possible to connect the1.stpanel trough PPI to S7-200 and then connect the second panel to the1.st HMI trough RS or ethernet cable?Will the second panel see trough the 1.st and be able to connect S7-200? About bars and gauges on MP277, is it possible to make custom objects using VBS and if its possible is there any ready objects on sale or do i need to code them myself?

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4/28/2008 12:36 PM	Rate (0)
INS Gold Member Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56)	Hi, I think that your answer is answered in the folowing FAQ. There is described that 3 HMI's are possible for a 226. The most interesting part is the 2nd table which shows al the numbers combined with baudrates. Which HMI components can you connect with S7-200 CPU and what should you watch out for when doing so?
	Best regards, INS
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4/28/2008 1:34 PM	Rate (0)
ZAK Gold Member Joined: 5/8/2006 Last visit: 10/16/2024 Posts: 1085 Rating: (77)	Hi, you can connect all three panel to a S7-200 PLC with a standard MPI or Profibus cable. You onlyneedthe SIMATIC S7 communication driver in WInCC flexible. If both panels have an ethernet port you can use Sm@rtAccess via ethernet. Bars and gauges arestandard objects of WinCC flexible. If thevalue in plc not theright display value you can changevalue by the linear scaling of the tag. You find the options in the properties of the tag. Bye

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4/28/2008 6:54 PM	Rate (0)
Noksu Member Joined: 3/11/2008 Last visit: 2/16/2023 Posts: 10 Rating: (0)	ZAK Hi, Bars and gauges arestandard objects of WinCC flexible. If thevalue in plc not theright display value you can changevalue by the linear scaling of the tag. You find the options in the properties of the tag. Thx, But actually i wanted to know if its possible to create your own bar, gauge etc, objects? Thisbecause i feel that some ofthese features arebit limited for our needson Siemens panels. Just to be sure.. so two MP277 can be connected together with ethernet and then in example 1.st panel can connect PLCusing PPI? Both panels will have diffrent kind of program inside, will this work with smartacces? What i understood from documentation is that smartacces is somekind of remote use for panels... So is PPI network my only option without without using MPI/DP module with S7-200?
	Last edited by: Noksu at: 4/29/2008 8:24 AM
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