Hello every one!

I am having a problem about connecting S7-1500 with HMI MTP700 Unified comport.

I connected s7-1500 with HMI KTP 700 basic and it's ok. I also connected the S7-1200 with HMI MTP700 unified comport and it was also OK. But I cannot connect the S7-1500 to the same HMI MTP700 unified comport, All the I/O field display the symbol '!' inside the yellow triangle

Is there any problem here? please help me, thank you very much!

Hi Thiemnx,

The communication problem may be related to secure communication. You should make sure that the clocks on both devices are set to the correct time. You may find the following FAQ helpful:

Establishing a connection between WinCC Unified and CPU with firmware 2.9/4.5

Kind regards
Stefan

Yes, It is correct solution

Thank you very much!

Stefan Arcularius

Hi Thiemnx,

The communication problem may be related to secure communication. You should make sure that the clocks on both devices are set to the correct time. You may find the following FAQ helpful:

Establishing a connection between WinCC Unified and CPU with firmware 2.9/4.5

Kind regards
Stefan

 Yes, it is correct solution

Thank you very much!