In a recent project, we needed to set up communication between a PC running LabView and a Siemens S7-1500 PLC. Thankfully, Siemens provides the LCom communications library, shown below, for setting up TCP communications on SIMATIC S7-300/400, SIMATIC S7-1200/1500, and SIMOTION SCOUT devices.
TCP is a handy method of establishing non-critical communications between two Ethernet capable devices. The LCom library provides a convenient interface to implement TCP communications in your project.
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