Communication
11.2 PROFINET
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
911
Example: Using the T_CONFIG instruction to change IP addresses in the NTP servers
In the following example, in the "ntp" (Network Time Protocol (NTP) server) subfield, the
T_CONFIG instruction changes the IP addresses of up to four NTP servers.
In the CPU Properties, PROFINET interface [X1], Time synchronization page, you configure
NTP synchronization by selecting the "Enable time synchronization via NTP server" check
box as shown in the figure below. You can then change the IP addresses in the NTP servers
using the "T_CONFIG" instruction after the program is downloaded.
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