7/28/2021 5:14 PM | |
Joined: 8/18/2020 Last visit: 10/3/2022 Posts: 3 Rating: (0) |
Hello, I'm trying to do the same thing. Initially I tried using RDREC and WRREC but the requests kept overwrinting themselves. I have a question, can you do the request for all of the drivers at the same time? If no, how can I know if the request I made for one drive is the correct one to store in a variable using SINA_PARA_S? ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 07/29/2021 08:08:03New subject after splitting |
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7/29/2021 8:43 AM | |
Joined: 4/28/2015 Last visit: 9/20/2022 Posts: 1278 Rating: (300) |
Hi, the handling of acyclic reading and writing commands is not that easy to handle. In your case I would highly recommend to use the LAcycCom library: https://support.industry.siemens.com/cs/de/en/view/109479553 This one has blocks for reading and writing acyclically - you can just request anything at the same time or short after each other because additionally there is a so called "Resource Manager" block which will handle all the drive resources and sets your requests accordingly automatically. The implementation is a little more work than a simple SINA_PARA FB but in the end it makes it so much easier to communicate. |
Best regards, |
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