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PLC SIM TIA PORTAL MODBUS

2/25/2016 11:54 AM	Rate (0)
gilles.bonnotte Posts: 3 Rating: (0)	I don't understand why the modbusserver (program in my CPU 1500) don't work with PLC SIM. The modbus server is a FB uses the same instructions than others blocs Thanks
gilles.bonnotte Posts: 3 Rating: (0)
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2/25/2016 12:15 PM	Rate (0)
ChristophD Grandmaster-Expert Joined: 5/12/2006 Last visit: 9/2/2025 Posts: 22709 Rating: (3071)	Hello, what do you mean with not working? PLCSIM can't communicate with any device to/from external, PLCSIM have no physucal interface for such a job. Regards Christoph

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3/3/2016 3:24 PM	Rate (0)
gilles.bonnotte Posts: 3 Rating: (0)	I try to use a Modbus server TCP (using standards blocs ) on my program using one of ethernet port off my CPU. Thanks
gilles.bonnotte Posts: 3 Rating: (0)
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3/3/2016 3:41 PM	Rate (0)
ChristophD Grandmaster-Expert Joined: 5/12/2006 Last visit: 9/2/2025 Posts: 22709 Rating: (3071)	Hi, sorry but this is not possible with PLCSIM. The Ethernet Interface of the PLC which is simulated in PLCSIM is not accessible from external. And the Interface can't communicate to external! Regards Christoph

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This contribution was helpful to 1 thankful Users William_B

3/4/2016 8:22 AM	Rate (0)
gilles.bonnotte Posts: 3 Rating: (0)	But communication S7 are possible with NetToPlc program . So external communications are possible but not ModbusTCP...if i understand...
gilles.bonnotte Posts: 3 Rating: (0)
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3/4/2016 8:36 AM	Rate (0)
ChristophD Grandmaster-Expert Joined: 5/12/2006 Last visit: 9/2/2025 Posts: 22709 Rating: (3071)	Hello, no a comm is not always possible with nettoPLCSIM! NetToPLcSim is a 3rd Party (NON SIEMENS SUPPORT) tool to enable the T- Communication blocks a little bit other stuff to the PLCSIM Interface, but not all features of the Real Ethernet Interface are possible. If you have any issues/problems with NetToPLCSIM you should ask the developer in the NettoPLCSIM forum . Regards Christoph

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