9/25/2018 5:39 PM | |
Posts: 5 Rating: (0) |
Hallo, I am very new in IoT2040 and I want to conned it with my CPU and read in one DB.I use the Following Code : #include <SPI.h> // Uncomment next line to perform small and fast data access // Enter a MAC address and IP address for your controller below. int DBNum = 15; // This DB must be present in your CPU #ifdef S7WIRED unsigned long Elapsed; // To calc the execution time Serial.print("[ Dumping ");Serial.print(Length); but it is not working.Can someone tell me what I'm doing wrong? ------------------------------------------------------------------------------------------ |
Last edited by: The Helping Hand at: 9/26/2018 10:04:02 AMNew subject after splitting |
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10/11/2018 3:45 PM | |
Joined: 12/12/2016 Last visit: 4/8/2024 Posts: 640 Rating: (60)
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Hello, So if I understand correctly you are using this library, which is an Arduino ported version of Snap7 to access values of your PLC? If you want to do more things than just read values later on, I would suggest using node-red to read the values of your DB. You can do this with an S7 connection or over OPC UA if your PLC supports this. In meantime I will also have a look at this library you mentioned. Kind regards! |
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