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The data to be acquired from the SIMATIC S7-300 is selected by configuring the ION SIMATIC S7-300 T001 function block in the SIMATIC S7-300.
The function block is initialized in the startup OB of the PLC (OB100, OB101, OB102). For this purpose, the COM_RST parameter is set to TRUE. During initialization, the number of active channels is determined, the cycle time imported, and further calculations made for operation.
The FB is then executed passively in the program. Data exchange with the analysis software on the industrial PC only starts after being called in a time interrupt OB (e.g. OB35) by SIPLUS CMS4000 X-Tools. The data is visualized, analyzed and archived there.
From the point of view of X-Tools, the ION SIMATIC S7-300 T001 appears as an Ethernet device which communicates by means of UDP/IP.