Chapter 8 Time Setting Function (Sntp Client) - Mitsubishi Electric Q03UDVCPU User Manual

CHAPTER 8
The CPU module collects time information from a time information server on LAN, and automatically sets its own time.
With this time setting function, the CPU module queries the server for time information at the specified timing, and can
set the time information sent from the server as its own clock data.
The time setting can performed at the following timing.
• When the CPU module is powered off and then on, or is reset
• At the specified time intervals (Execution interval)
• At the specified clock time (Execution time)
• According to the special relay state
*1 Time is set when SM1270 is turned on for one scan.
● Confirm the connection of the hub or the interfacing device in advance when setting time at the timing of CPU module
power-on or reset.
● The time setting results can be checked with the special register (SD1270 to SD1275).
● During execution of the time setting function, other time setting operations are ignored.
Remark
Access through routers is also available. When configuring the settings for it, set the subnet mask pattern and default router
IP address. (
136
TIME SETTING FUNCTION (SNTP
CLIENT)
*1
Time query
CPU module
Ethernet
Personal computer
Page 30, Section 3.4)
Setting server time in the CPU module
LAN