Time Synchronization; Block Monitoring; Disturbance Recorder File Transfer; Disturbance Recorder File Directory (Asdu 23) - ABB RELION 615 Series Protocol Manual

Section 3
Vendor-specific implementation
3.4.3
3.4.4
3.5
3.5.1
26

Time synchronization

Time synchronization over IEC 60870-5-103 is supported. This requires that the
IED's global Time Sychronization Source parameter (in Configuration/Time/
Synchronization/Synch source) is set to "IEC 60870-5-103" mode. If some other
time synchronization source is configured for the IED, the IEC 60870-5-103 time
synchronization messages are rejected.

Block monitoring

The Block monitoring setting parameter prevents the relay from sending Class 1
events. Two blocking modes exist: the relay can keep or discard the occurring Class
1 events during the blocking period. In any case, every Class 1 data object updates its
momentary value with the latest change event. A general interrogation following the
blocking period always reveals the present state of all Class 1 data objects. When
blocking mode is activated, it is reported by the IED with event code Fun 0
(=DevFunType) Inf 20. If the event buffer overflows during "Blocked Keep Events"
mode, the oldest events are retained. The Block Monitoring parameter is found in
Configuration/Communication/IEC 60870-5-103/I3C0n.

Disturbance recorder file transfer

The IED includes a functionality that converts the IED's natively captured
disturbance file contents into IEC 60870-5-103 disturbance data. Disturbance files are
also available as standard COMTRADE files through PCM600 or WHMI.
IEC 60870-5-103 disturbance recorder spontaneous Class 1 notification message
(disturbance recorder file directory ASDU 23) can be enabled or disabled via the
setting parameter DR Notification n. The default setting is disabled. Purpose of this
notification message is to inform the IEC 60870-5-103 client that the disturbance file
directory has been updated. Usually this means that a new disturbance recording has
been captured and stored by the system. If a disturbance recorder file transfer is not
required from the IED, the notification is also unnecessary.

Disturbance recorder file directory (ASDU 23)

The disturbance recorder files IEC 60870-5-103 identification in the IED is a
sequential 16-bit number starting from 1 at IED reset and incrementing for each new
captured disturbance recorder file.
IEC 60870-5-103 standard defines the disturbance recorder file
identification to be the fault number (FAN), which is the same number
that is generated by ASDU 2 Class 1 events during the same fault. The
IED could theoretically capture several disturbance recorder files
during the same fault, be triggered by a non-protection signal,
triggered externally or triggered periodically. That is why the
1MRS759001 A
615 series
Communication Protocol Manual