7/5/2009 3:33 PM | |
Joined: 10/7/2005 Last visit: 9/20/2024 Posts: 3021 Rating: (1054) |
Hello Daniel your problem is most likely caused by the fact that the first download of your flex project to the Panel (the one that works) changes the settings for the MPI/DP transfer (I presume you use DP) and your USB MPI/DP adaptor is set to MPI. Here is an excerpt from the TP manual (which you can download from here): Transfer mode using MPI / PROFIBUS DP The bus parameters for MPI / PROFIBUS DP transfer, e.g. the MPI / PROFIBUS DP address of the HMI device, will be read from the project currently loaded on the HMI device. The HMI device uses the new MPI / PROFIBUS DP settings until you transfer another project to it. During the transfer of a project to the HMI device, the MPI / PROFIBUS DP settings will be overwritten with the values from the transferred project. You can thus edit the MPI / DP settings for the TP 177A irrespective of the project settings. Anyway, have a look through the manual which has more useful info on connecting anddownloading. I hope this helps |
Cheers |
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7/6/2009 1:56 AM | |
Joined: 10/7/2005 Last visit: 9/20/2024 Posts: 3021 Rating: (1054) |
Hello Daniel don't you hate when you think you have the "perfect" answer that explains what's wrong only to find out that it is probably something else? Anyway, have a look at the Control Panel of your TP177A. You'll find an "MPI/DP settings" icon (this handlesthe interface as far PLCcommunication is concerned and will be overwititen by your flex application settings) as well as a "Tranfer Settings" icon (this handles how you can download to the Panel and will be "reset" by an OS upgrade). Check the settings in both andmake espacially sure that the 2nd channel in the "Tranfer Settings"is enabled and set up for your download needs(e.g. MPI, DP, USB or Etehrnet for more powerful panels) and see also chapter 6.1 of the previous listed TP177 manual for more on this. I'll keep my fingers crossed that this helps in fixing the problem. |
Cheers |
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7/6/2009 2:13 PM | |
Joined: 4/24/2006 Last visit: 9/20/2024 Posts: 8742 Rating: (1168) |
Hi Daniel..Nilsson, Let's hope you get an answer, that will help. Have you seen this link: http://support.automation.siemens.com/WW/view/en/19109408 The USB/MPI adapter is not released for transfer Best regards, Wizard |
This contribution was helpful to1 thankful Users |
7/6/2009 3:21 PM | |
Posts: 32 Rating: (0) |
That's really weird, cause i did transfer my project with it :) |
7/6/2009 4:13 PM | |
Posts: 32 Rating: (0) |
I have now also tried to use the RS232 -> RS485 and there is the same result. |
8/7/2009 10:03 AM | |
Posts: 382 Rating: (47) |
Dear Daniel, If I can understand your problem correctly you mean you can only download once your wincc flexible project to the TS. After that you can't establish any communication from you PC to TS later right? If this is the case then you have to look into your configuration setting [see attach]. Just taking the Transmission Rate as example first. In the configuration is 12Mbit. So afterdownloading the project to TS the configuration will be set. To perform the next download you have to following what you have set in your configuration. That means you have to set 12Mbit in yourTS-Windows CE-transfer setting when you want to download again. Of course other setting such as DP/MPI, slave number you also have to set according to what you have configured and also not to forget thePG/PC settings to choose the correct one like MPI.Profibus,etc. By the way, using USB to MPI programming cable has no problem in transferring the wincc flexible project to the TS as I did it many times. I hope this is what you are looking for as my understand of english is not very good and might misunderstand your question. If not just consider as a sharing information. If you still cannot establish the communication, maybe you post your project here. I am also using Wincc flexible 2007,step7 5.4 sp3 and TP177B. I can help you to test your project using my setup if you want. Hope this helps! with regards, how come? AttachmentAddress And Rate Settings.zip (438 Downloads) |
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