8/10/2009 3:15 PM | |
Joined: 3/24/2009 Last visit: 6/20/2023 Posts: 535 Rating: (112) |
Dear Berg, the SFB and the FB should have the same functionality, but not every CPU has the SFB (I think only the 400-CPUs have the SFB, on the 300-CPUs you have to use the FB). Addtitional info is available here. Regards, yy1 |
8/10/2009 5:35 PM | |
Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56) |
Hello Berg, In the S7-400 you need to use SFFB and in the S7-300 you need to use FB's. If you want it written in a Siemens document you need to check the manuals with the Instruction Lists. Below you find the links for the S7-300 and IM151-x CPU's and for the S7-400. S7-300 Instruction List CPU 31xC, CPU 31x, IM 151-7 CPU, IM 151-8 CPU, IM 154-8 CPU, BM 147-1 CPU, BM 147-2 CPU S7-400 Instruction List CPU 412, 414, 416, 417 Here you will find that BSEND/BRCV in the S7-400 is done with SFB FB is not available in the Instruction List and in the S7-300 THE SFB is not available but the FB's are mentioned. |
Best regards, |
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