172 FLOWSIC600 · Technical Information · 8010125 V 4.0 · © SICK AG
Maintenance
Subject to change without notice
6.2.3 Time synchronization
All entries in logbooks or datalogs saved in the meter‘s memory (FRAM) are written with a
time stamp containing the meter time. The meter time can be synchronized with a master
clock (e.g. PC clock) via MODBUS or with MEPAFLOW600 CBM.
:Synchronization via MODBUS
The date and the time of the FLOWSIC600 can be set separately by an external write. Each
operation for date and time causes a separate entry in the Custody logbook [1].
Alternatively the synchronization function can be used. To use this method, the date (Reg.
#5007 "Date") and the time register (Reg. #5008 "Time") must be written sequentially
within 2 seconds. The date register must be written first. The write operation can be
accomplished by the MODBUS without setting the FLOWSIC600 into Configuration Mode.
Time synchronization via MEPAFLOW600 CBM
MEPAFLOW600 CBM offers a synchronization function via a button in the "Meter
Information" screen (
Figure 81). The button is marked with a yellow sign calling attention
to the synchronization if the time difference between the meter clock and the PC clock is
greater than 30 seconds.
Figure 81 Synchronization button and meter clock synchronization window
A synchronization causes a logbook entry in the Custody logbook [1] only if the
time change is greater than 3% of the time elapsed since the last
synchronization.
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