12 Automatic Clock Adjustment
12-2
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
12-1 Automatic Clock Adjustment
With the built-in EtherNet/IP port, clock information is read from the NTP
*
server at the specified time or
at a specified interval after the power supply to the CPU Unit is turned ON. The internal clock time in the
CPU Unit is updated with the read time.
* The NTP (Network Time Protocol) server is used to control the time on the LAN.
12-1-1 Overview
Built-in EtherNet/IP port
NTP client
NTP clientNTP client
• At specified times or at specified intervals
• When power supply is turned ON to CPU Unit
Clock data is obtained from the NTP server and
written to the CPU Unit at the following times.
Time query sent.
Time information written.
Automatic clock adjustment
NTP server
Ethernet (EtherNet/IP)
23:59:59
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