12/30/2019 4:28 PM | |
Joined: 9/27/2006 Last visit: 4/26/2024 Posts: 12257 Rating: (2665)
|
Hello Ahmed; If you select a consistent data transfer, for example 64 input bytes consistent it means that the full 64 bytes must be treated as a single block of data. You must then use special functions SFC 14 DP_RDDAT and SFC 15 DP_WRDAT to read and write to these data. How do you read consistent data from a DP standard slave/PROFINET IO device and write it consistently to a DP standard slave/PROFINET IO device? https://support.industry.siemens.com/cs/ww/en/view/21848242 If you choose 64 bytes (non-consistent, or consistent over unit) you can then access the data with standard Move operations, individually, as bytes, word or Dwords, using their individual peripheral addressing (PIB256, for ecxample, in Simatic Manager, or %IB256:P in TIA Portal). Hope this helps, Daniel Chartier |
This contribution was helpful to1 thankful Users |
12/31/2019 4:53 AM | |
Joined: 1/16/2012 Last visit: 11/29/2023 Posts: 106 Rating: (2) |
Thank you Mr. Daniel. |
Follow us on