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SAPI S7 - Application

Created by: Anguraj at: 12/31/2007 3:22 AM (1 Replies)

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12/31/2007 3:22 AM	Rate (0)
Anguraj Posts: 56 Rating: (0)	DEar sir, What is the use of SAPI S7 application in NET ?. When we have to use this APPLICATION in PC SATION?. Please do the needful. Best Regards, G.Anguraj.
Anguraj Posts: 56 Rating: (0)
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12/31/2007 12:01 PM	Rate (1)
Late Platinum Expert Joined: 1/7/2006 Last visit: 12/23/2024 Posts: 2705 Rating: (320)	Hi, If you don't use OPC then you may use SAPI-S7. Advantages of S7 Compared With Other Protocols The advantages of S7 compared with other protocols are as follows: -Low load on the processor and bus. The S7 protocol is optimized for SIMATIC communication. -Simplicity The S7 protocol elements are adapted to the requirements of SIMATIC and are therefore simple touse.Compared with other layer 7 automation protocols, such as MMS, S7 provides a high performance. - Compatibility Fail-safe communication with S7 H systems with the same programming interface as to the standard SIMATIC S7 systems. Advantages of the SAPI-S7 Programming Interface The acronym SAPI-S7 stands for the following: - SAPI - Simple Application Programmers Interface, -S7 - the layer 7 communications protocol of SIMATIC S7 systems. What is SAPI-S7 - is a simple C programming interface, -provides access to the S7 services on PCs and PGs and - is available as a C library and is operated with Siemens drivers and communications processors. When you search on SAPI then you would find the handbooks.
	Last edited by: Late at: 31.12.2007 12:12 Text little bit better aranged I hope that the answer will help, if you have still questions, don't hesitate to ask me. All the best, Late Never say never, think in solutions, not in trouble......
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