12/8/2019 6:50 PM | |
Posts: 3 Rating: (0) |
Hello all, I am looking for some help in using a string[254] as a input for a FB. I programmed the FB in SCL as shown in the linked PDF. I monitored the string input in the DB and it does contain value. However, when I monitored the DB for the called DB, the input variable is showing empty. I will appreciate for any help of suggestion. Thanks! AttachmentSCL_StringInput_Problem.pdf (317 Downloads) |
12/9/2019 10:11 AM | |
Joined: 9/16/2013 Last visit: 1/5/2024 Posts: 511 Rating: (106) |
Hello zsoo, Regardless of monitoring, if you are trying to move STRING into STRING BUFFER, with your code it won't work. SFC20 needs ANY Pointer to the inputs. Means you have to declare inside your SCL as Temp Variables pSource and pDestination. Furthermore you have to construct them. Problem might be in pDestination construction since you are using it as variable destination field. Here are some links which should help you out: FIFO [store Data DB into Buffer DB] (Some Example is in TIA portal, but it works in classic STEP without any modifications) Best Regards Soble |
Last edited by: SOble at: 12/09/2019 10:13:17Website: |
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