Hello I'm using the siemens library (following link) to set 400 PLC as a SNTP server, and then use s120 to synchronize the time from the PLC. 

https://support.industry.siemens.com/cs/document/82203451/library-for-sntp-server-functionality-in-simatic-s7-cpus?dti=0&lc=en-BH

The PLC program shows no error (see screenshot), but S120 shows no ntp server can be accessed (A1097). Any advices? Maybe the PLC program is not set correctly although it shows no fault? Thanks

Hello AutoGen_6548995,

On the part of the PLC, and following the instructions in the FAQ that it indicates, I would verify point 4.4 on page 20, specifically sections 3 and 4 where it is necessary to make a call in OB100 to reset the "Startup" variable and another in OB1 to reset the same variable. Are you doing this step?

 hello, Thanks for your reply! 

I also did that please see the screenshots below.  I created db1000 for section 1 in the FAQ, and inserted the logic to OB1 and OB100. It doesn't work also so I tried a dummy to manually enable the FB1000...The FAQ doesn't explain what M1.0 means. How do I define M1.0? 

Thanks again!

JBS98

Hello AutoGen_6548995,

On the part of the PLC, and following the instructions in the FAQ that it indicates, I would verify point 4.4 on page 20, specifically sections 3 and 4 where it is necessary to make a call in OB100 to reset the "Startup" variable and another in OB1 to reset the same variable. Are you doing this step?

 hello, I have updated the logic of step3 and 4 and looks like the block got initialized, but always got fault. I'm using 410 plc x5 port to connect a cu320 unit so I select locdevid as 16#05, and use 99 (randomly selected one) for OUC connection id. Is there any other tricks to make it work? Thank you!

JBS98

Hello AutoGen_6548995,

On the part of the PLC, and following the instructions in the FAQ that it indicates, I would verify point 4.4 on page 20, specifically sections 3 and 4 where it is necessary to make a call in OB100 to reset the "Startup" variable and another in OB1 to reset the same variable. Are you doing this step?

 Hi,

How to identify the LocDevID? I'm using the port X8 of cpu 410E

AutoGen_6548995

 hello, I have updated the logic of step3 and 4 and looks like the block got initialized, but always got fault. I'm using 410 plc x5 port to connect a cu320 unit so I select locdevid as 16#05, and use 99 (randomly selected one) for OUC connection id. Is there any other tricks to make it work? Thank you!

JBS98

Hello AutoGen_6548995,

On the part of the PLC, and following the instructions in the FAQ that it indicates, I would verify point 4.4 on page 20, specifically sections 3 and 4 where it is necessary to make a call in OB100 to reset the "Startup" variable and another in OB1 to reset the same variable. Are you doing this step?