Other Functions; Time Synchronization Function - Mitsubishi Electric QJ81DL96 User Manual

Melsec q series, high speed data logger module
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10

OTHER FUNCTIONS

CHAPTER 10 OTHER FUNCTIONS
This chapter explains functions other than the data logging function, event logging
function, and report function.

10.1 Time Synchronization Function

The time synchronization function synchronizes the time of the high speed data logger
module to that of a programmable controller CPU or SNTP server computer on the
network.
Time information is used for the logging data time stamp, time of event occurrence/
restoration, and report creation time.
(1) To synchronize with the programmable controller CPU time
10
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10.1 Time Synchronization Function
The time is set to the time of the programmable controller CPU (in a multiple CPU
system, CPU No.1).
The time is set to the time of the programmable controller CPU once in 24 hours.
Additionally, the time is also synchronized at the timings below.
• When the programmable controller system is powered ON
• When the programmable controller CPU is reset
• When the auto logging function starts
• When settings are updated ( Section 13.1.1)
• When YB (programmable controller CPU time synchronization request) turns
OFF  ON
Programmable controller CPU
High speed data logger module

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