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communication with simanics G120 CU240E-2DP with S7300 cpu315-2pn/dp
Created by: sudheer kumar at: 2/25/2013 1:57 PM (3 Replies)
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| 2/25/2013 4:43 PM | |
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Posts: 344 Rating:
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I would separate those variables in two groups: (1) the ones that are constantly changed/monitored and (2) the ones that need to change from time to time. Group 1 will have values like voltage, current, power. Group 2 will contain accel and decel times. Group 1 values can be monitored by extending standard ProfiDrive message frames and adding those parameters to the drive telegram Basic Profibus communication configuration steps are described in this example. Group 2 values should be changed utilizing parameter read and write functions. Example of parameter read and write functionality is available here. |
| 2/26/2013 10:45 AM | |
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Posts: 2 Rating:
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Thanx DenisMor sir for the information which u have posted but am not able to read or write the values which i have mentioned.Am uploading the programm can u suggest me.... AttachmentCPU_315-2 PN_DP.zip (560 Downloads) |
| 2/26/2013 11:41 AM | |
Joined: 10/11/2006 Last visit: 1/20/2026 Posts: 6051 Rating:
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Hello, In your project there is no acyclic communication. To read and write parameters like ramp times you should use the Function blocks SFB52/53. Some examples are mentioned from DenisMor above: http://support.automation.siemens.com/WW/view/en/29157692 There is also a chapter in the function manual --> for example in the manual for the S120 (chapter 10). |
Last edited by: TechTeam at: 2/26/2013 11:47 AMWith best regards, |
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