11/19/2019 3:35 PM | |
Joined: 11/15/2018 Last visit: 12/30/2021 Posts: 8 Rating: (0) |
Hello everyone, I am beginner for TIA Portal and specifically for STL Programming language. I came across an instruction SLW in one of the STL Programms. When I read the information system or help context of TIA Portal I was unable to completely understand the instruction, thus I tried a Programm practically in TIA Portal and tested using PLCSIM. At the end when I compare the results both are completely different. Here with I am attaching a pdf file with both images. I am completely confused now what exactly it means. Could someone explain me in detail if the content shown in information is correct. As I programmed it is just shifting of bits by specific number which is not the case of information system or help context of TIA Portal. Thanks in advance. AttachmentANil.pdf (51 Downloads) |
11/20/2019 2:20 AM | |
Joined: 10/7/2005 Last visit: 9/21/2024 Posts: 3021 Rating: (1054) |
I'd say the TIA Portal help as well as your PLCSIM results are perfectly ok and as expected when using the SLW instructions. To note is that SLW only affects bits 0-15 in accu1 and leaves bits 16-31 unchanged (try SLD though and they will be affected too). Attached is pic too to hopefully help remove the confusion with the TIA Portal help example. |
Last edited by: fritz at: 11/20/2019 07:54:42Cheers |
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