ABB REL650 Applications Manual page 478

Section 17
Basic IED functions
472
FineSyncSource which can have the following values:
• Disabled
• SNTP
• IRIG-B
The parameter SyncMaster defines if the IED is a master, or not a master for time
synchronization in a system of IEDs connected in a communication network
(IEC61850-8-1). The SyncMaster can have the following values:
• Disabled
• SNTP -Server
The time synchronization fine tunes the clock.
IEC 60870-5-103 time synchronization
An IED with IEC 60870-5-103 protocol can be used for time synchronization, but for
accuracy reasons, it is not recommended. In some cases, however, this kind of
synchronization is needed, for example, when no other synchronization is available.
First, set the IED to be synchronized via IEC 60870-5-103 either from IED
Configuration/Time/Synchronization/TIMESYNCHGEN:1 in PST or from the local
HMI.
GUID-68284E7B-A24D-4E78-B5BA-736B29F50E9A V1 EN
Figure 224: Settings under TIMESYNCHGEN:1 in PST
Only CoarseSyncSrc can be set to IEC 60870-5-103, not FineSyncSource.
After setting up the time synchronization source, the user must check and modify the IEC
60870-5-103 time synchronization specific settings, under Main menu/Configuration/
Communication/Station communication/IEC60870-5-103.
• MasterTimeDomain specifies the format of the time sent by the master. Format can
be:
1MRK 506 334-UUS A
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