How can i connect LabView to a PLC or Profibus without using OPC?

I can access data from the PLC or through the Profibus using OPC. Unfortunately is this not fast enough since I need a faster sampling rate. Are there any faster ways to access the PLC data? I’m now using Siemens S7-300 and CP5613 with the driver S7-5613.

Hi Boris.
This tip can be very helpful to me, tanks!
Best regards, Martin

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Alicia,
Ben's answer is absolutely correct. "Profibus" is the key word here, and a search of "profibus" from ni.com will provide quite a bit of information. I went ahead and pulled out the main items below. Follow the link below for product catalog info on the plug-in cards and interface software (the OPC Server) required.
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KPAC wrote:
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