10/20/2014 8:59 AM | |
Posts: 7 Rating: (0) |
Hi, can anyone suggest the function blocks available to communicate between s7300 plc and a third party plc via profibus. Thanks Natchi |
10/20/2014 1:54 PM | |
Joined: 9/27/2006 Last visit: 5/13/2024 Posts: 12257 Rating: (2668) |
Hello natchi; Start with the very comprehensive answer from our friend fritz in this thread: BSEND/BRCV functions should cover your master-to-master communication requirements over Profibus. From the System and Standard functions manual, you can read the description of BSEND/BRCV exchanges: Description SFB/FB 12 "BSEND" sends data to a remote partner SFB/FB of the type "BRCV". With this type of data transfer, more data can be transported between the communications partners than is possible with all other communication SFBs/FBs for configured S7 connections: • 32768 bytes for S7-300 via SIMATIC-Net CPs • 65534 bytes for S7-400 and S7-300 via an integrated interface And you can find more information here: SIMATIC Communication with SIMATIC What differences are there when configuring S7 connections? S7 Communication with BSEND/BRECEIVE via PROFIBUS CPs Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 10/20/2014 3:18 PM |
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