User Guide

Special workflows
Time synchronization
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2022-03-15
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6 Special workflows
6.1 Time synchronization
Time synchronization has three responsibilities:
● The device accepting the Time synchronization request.
● The device acting as a Time master.
● Time synchronization using Network Time Protocol (NTP).
Prerequisite: Project has Time master enabled in ABT Site.
NOTE: Once Time synchronization is started, it by default sends the UTC Time synchronization and Time
synchronization to the recipients.
Property
Description
UTC time syncr.recipients
Used to control the restrictions placed on a device’s use of the UTC time
synchronization service.
Time synchr. recipients
Used to control the restrictions placed on a device’s use of the Time
synchronization service.
Align intervals
Specifies whether clock-aligned periodic time synchronization is enabled. If
periodic time synchronization is enabled and the time synchronization interval is a
factor or an hour or day, then the beginning of the period specified for time
synchronization is aligned to the hour or day.
Time synch. interval
Specifies the periodic interval in minutes at which Time synchronization and
UTC Time synchronization requests is sent. If the value is zero, then periodic
time synchronization is disabled.
Interval offset
Specifies the offset in minutes from the beginning of the period specified for Time
synchronization until the actual time synchronization requests are sent. Interval
offset has no effect if it is FALSE.
Table 12: Time synchronization properties
Time synchronization
Time synchronization is a service used by a Time master to notify one or more remote devices of the correct
current time so that the remote devices can synchronize their internal clocks with one another.
NOTE: You need to be a part of the recipient list in order to receive a Time synchronization request.
Recipients can be added by recipient device instance number.
1. Navigate to Object view > Device > Infrastructure > the automation station.
2. Click , scroll through the properties and select Time synchr.recipients.
3. Select a recipient in the recipient list.
4. Enter the Network number and MAC address and click in the drop-down to save changes.