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Thomas Wiens
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Especially for the S7-1200/S7-1500 controllers, there are incompabilities due to the authentication mechanisms of these controllers.
As the PLCSIM versions are using different keys, not all client software versions are able to establish a connection to PLCSIM. As NetToPLCSim acts as a bridge to the underlying S7ONLINE interface, this is not something that can be fixed inside NetToPLCSim.

This does not concern the Put/Get communication with absolute addresses.

The following table gives some combinations which were tested with NetToPLCSim V1.2.4:

Client-Software TIA Version Result
WinCC 7.2 Info: WinCC 7.2 only supports "not optimized" datablocks
WinCC 7.2 (7.2.0.11) TIA V15.1 Plcsim (Upd3) NO
WinCC 7.2 (7.2.0.15) TIA V15.1 Plcsim (Upd3) NO
WinCC 7.2 (7.2.0.11) TIA V14 Plcsim (SP1+Upd7) NO
WinCC 7.2 (7.2.0.11) TIA V13 Plcsim (SP1+Upd6) OK
WinCC 7.3
WinCC 7.3 (7.3.0.0) TIA V15.1 Plcsim (Upd3) NO
WinCC 7.3 (7.3.0.0) TIA V14 Plcsim (SP1+Upd7) NO
WinCC 7.3 (7.3.0.0) TIA V13 Plcsim (SP1+Upd6) OK
WinCC 7.4
WinCC 7.4 (7.4.1.13) TIA V15.1 Plcsim (Upd3) OK
WinCC 7.4 (7.4.1.13) TIA V15 Plcsim (Upd4) OK
WinCC 7.4 (7.4.1.13) TIA V14 Plcsim (SP1+Upd7) OK
WinCC 7.4 (7.4.1.13) TIA V13 Plcsim (SP1+Upd6) OK
Simatic.Net V12.0 OPC Server Info: Comes with WinCC 7.3
Simatic.Net V12.0 SP2 OPC TIA V14 Plcsim (SP1+Upd1) OK
Simatic.Net V12.0 SP2 OPC TIA V13 Plcsim (SP1+Upd4) OK
Simatic.Net V14.0 OPC Server Info: Comes with WinCC 7.4
Simatic.Net V14.0 OPC TIA V14 Plcsim (SP1+Upd1) OK
Simatic.Net V14.0 OPC TIA V13 Plcsim (SP1+Upd4) OK
Simatic.Net V15.0 OPC Server Info: Comes with WinCC 7.5 (SP2)
Simatic.Net V15.0 OPC TIA V16 Plcsim (Upd6) OK
Simatic.Net V18.0 OPC Server
Simatic.Net V18.0 OPC TIA V16 Plcsim (Upd6) OK

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