Title: Mastering Automation: Unleashing the Power of S7 Can Opener in TIA Portal
: For external communication, TIA Portal allows the S7-1500 to act as an OPC UA Server, where specific tags must be marked "Accessible from HMI/OPC UA" to be exposed to external clients. String Data : String tags in S7-300 controllers are limited to 210 characters
Process Data Objects (PDO): Map real-time cyclic data to S7 I/O memory.