Communication 
  11.8 Time synchronization between the control and converter 
Drive functions 
Function Manual, 11/2017, 6SL3097-4AB00-0BP5 
909 
The time format is entered via parameter p3100. This parameter cannot be changed online 
To change the value, proceed as follows: 
1.  In STARTER, using the "Project > Connect to target system" function activate the 
ONLINE mode. 
2.  Upload using the "Target system> Load > Project to PG" function. 
3.  In STARTER, using the "Project > Disconnect connection to target device" function exit 
the ONLINE mode. 
4.  Offline, in the expert list of the control unit, make the setting p3100 = 1. 
5.  Reactivate the ONLINE mode. 
6.  Carry out a parameter download ("Target system > Load > Load project to target 
system") followed by copy from RAM to ROM. 
You have now changed over the converter time format to UTC format. 
You can find the following application example in the SIEMENS "Industry Online Support": 
Example: Converter as NTP client 
(https://support.industry.siemens.com/cs/ww/en/view/82203451)