Hi.

I have a setup with a 1513 CPU syncing with an ntp-server. This works good.

The same CPU communicates through a downstream CP-card connected to a ET200SP 1512 CPU.

This 1512 CPU has connected a MTP1000 unified comfort panel, which I want to show the correct synced time.

What I've done so far is to enable the LSNTP-server in the 1513. It outputs no errors, so I suppose it works. But I'm far from sure. It has no output at the "Valid" pin. The manual for the LSNTP-library has some holes in it..

Then I've set up the downstream CP-card to synchronize with ntp to the 1513. I've enabled CP to CPU-time with the trigger and time setup in the CP-cards hardware settings.

The trigger-bit and the time is then used to write the 1512 CPU's system time in the user program.

Then again, I've enabled another LSNTP-server in the 1512, for the unified-panel to sync with.

I can not get this to work. It seems that the CP-card does not receive any time, as the trigger bit is not working and updating the time in the user program.

The Siemens manuals 82203451_LSNTP_DOC_V303_en & 109765282_Time_of_day_ET200SP_CP_en is followed without success.

The only thing I can suspect to be wrong, is the connection-ID at the LSNTP FB. I've set it to 1 and 64 to test, but I'm not sure what it should be?

Anyone have any tips?

Hello jholos

could you send us  a screenshot of your Devices and Network from TIA where we can see all IPs and topology?

Or do you have a network chart?

Is the HMI Panel in the same subnet as the CP from the 1513?

Bye Murof

Problem solved. See picture.