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Slow communication

Created by: Dzintars at: 4/28/2006 10:27 AM (5 Replies)

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4/28/2006 10:27 AM	Rate (0)
Dzintars Posts: 18 Rating: (0)	I have WinCC flexible 2005 RTconnected to PLC S7 -226 directly with PPI cable. This connection is VERY slow. When I try S7-200 PC Access (OPC server) all works fine. Where is a problem? Why my standard driver is so slow?
Dzintars Posts: 18 Rating: (0)	Last edited by: Dzintars at: 4/28/2006 2:30 PM
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4/28/2006 3:26 PM	Rate (0)
The Brain Gold Member Joined: 10/19/2005 Last visit: 11/30/2020 Posts: 1611 Rating: (121)	Hallo, i did not have some "Know-how" about S7 200, but did you check the settings from the PPI cable? Did you have a nother project which you can test the performance? I found some infos about kommunication to a S7 200 and a RT => http://support.automation.siemens.com/WW/view/en/16650850 (For PrTool, but it should be same for WinCC flexible) => http://support.automation.siemens.com/WW/view/en/14188898 => http://support.automation.siemens.com/WW/view/en/16532946 => http://support.automation.siemens.com/WW/view/en/16810372 It is a big project? If yes, what are, if you reduce the Project (tags, which communicated to the flexible RT) greetings,

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4/29/2006 7:55 AM	Rate (0)
Dzintars Posts: 18 Rating: (0)	I make “test” project with 5 tags. Microwin works normally. Normally my computer use 2-4 % of CPU. When I run WinCC flexible RT on my computer, CPU meter is approx. 30-100%. Communication is stopped when CPU is 100% for 5-15 sec. I try install to other computer, the same.
Dzintars Posts: 18 Rating: (0)
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4/29/2006 8:43 AM	Rate (0)
Nemo Posts: 3149 Rating: (171)	Hi Dzintars, what kind of computer do you use (CPU, RAM, free diskspace,...)??? I suppose that your computer hasn´t enough resources to run WinCC flexible - you can find the minimum requirements for your PC in your WinCC flexible release notes. nemo
Nemo Posts: 3149 Rating: (171)	Last edited by: Nemo at: 4/29/2006 8:43 AM
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5/3/2006 7:18 AM	Rate (0)
tevins Regular Member Joined: 2/17/2006 Last visit: 6/21/2021 Posts: 35 Rating: (1)	I have Pentium 4; CPU 2.8 Ghz; 1GB RAM; HDD 80GB and i try to ather computer Pentium M 1.7; 1Gb; 60 Gb I try new program wth 5 tags, the same.

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5/3/2006 7:28 PM	Rate (0)
Nemo Posts: 3149 Rating: (171)	Hi, have you already checked, how much RAM is available in Windows Taskmanager, how high is your your CPU-load? Normally I recommend 2 GB RAM (or more), 1 GB is the minimum requirement... nemo
Nemo Posts: 3149 Rating: (171)
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