Plcsim V18 |best| -

PLCSIM V18 is fully synchronized with TIA Portal V18. This means the software cannot be used with older versions of TIA Portal (V15, V16, or V17). The tight integration ensures one-click downloading, real-time monitoring, and support for all the new hardware modules released in the V18 library.

| Protocol | Simulated in PLCSIM V18 | Use Case | |----------|------------------------|-----------| | S7 Communication | ✅ Full | HMI/SCADA connection testing | | OPC UA | ✅ Full (server) | MES, database, third-party client testing | | Modbus TCP | ✅ Basic | Field device simulation | | PROFINET | ✅ Limited (no real-time RT/IRT) | Device names, topology (virtual only) | | Web Server | ✅ Basic (S7-1200/1500) | Testing diagnostic pages | | PROFIBUS | ❌ Not simulated | Requires physical hardware | plcsim v18