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Profibus communication with Beckhoff IO terminal

Created by: Mathias_P at: 7/1/2014 11:20 AM (2 Replies)

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7/1/2014 11:20 AM	Rate (0)
Mathias_P Posts: 11 Rating: (0)	Hi all, i have a hardware setup with a S7 315 2DP and a beckhoff BK3100 profibus terminal. I have managed to setup the communication without bus failures. my profibus adress starts at %I1000. when i want to use the first input (%I1000.0) i encouter a error that not popup when compiling. when i delete the code where i use I1000.0 there are no problems. the weird thing is when compiling there are no errors, only when i try to download. can someone help me on this? thanks! Attachment Profibus error.jpg (125 Downloads)
Mathias_P Posts: 11 Rating: (0)
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7/1/2014 11:41 AM	Rate (0)
Pittiplatsch Posts: 1368 Rating: (126)	Hello, i have a guess, that your process image of your cpu is too small.In somenew CPU, you can change thesize of the process image in the properties of the CPU. Otherwise youshould use Periferie access. For example: Instead of QW128 you should use PQW128. Because of Process image of CPU.
Pittiplatsch Posts: 1368 Rating: (126)
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7/4/2014 9:33 AM	Rate (0)
Mathias_P Posts: 11 Rating: (0)	Ok thanks the problem is solved. It was the process image :)
Mathias_P Posts: 11 Rating: (0)
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This contribution was helpful to 1 thankful Users Pittiplatsch

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