Sam600 Module And System Supervision - ABB SAM600 Operation Manual

1MRK 511 434-UEN B
Handling of sample synchronization in a SAM600 system
SmpSync field denotes the synchronization status of the sampled value stream. According
The
to IEC 61850 the possible values of
• 0 – sampled value stream is not synchronized by an external clock signal
• 1 – sampled value streams is synchronized by a clock signal from an unspecified local area
clock
• 2 – sampled value stream is synchronized by a global area clock signal (time traceable,
GPS)
The sample synchronization value of a sampled value stream that is provided by a SAM600
system depends on the configured time synchronization method and the current
synchronization status of the SAM600 system.
value stream synchronization options.
Table 6:
Time synchronization
configuration
IEC/IEEE 61850-9-3 (PTP) (GPS)
IEC/IEEE 61850-9-3 (PTP) (no GPS
required)
Free running
Synchronization by 1PPS
SmpSync value depends on the quality of the current time master. If it has a GPS reception then
1) The
SmpSync will be (2). Otherwise, it will be (1).
2) The SmpSync value depends on the location where the time synchronization fault occurred. A time
synchronization error within a SAM600 system will result in SmpSync as (0), as shown in
time synchronization error outside of the SAM600 will not be detected. Therefore, the SmpSync value will be
(1).
3) If the
value will be (1), else it will be (0) and the PPS outputs will be disabled from TS modules in the SAM600
system.
If SAM600 System is synchronized:
• with PTP Master clock, then the pulse width of the 1PPS outputs is about 168 milliseconds.
• with PTP GrandMaster with GPS/PPS, then the pulse width of the 1PPS outputs is about
168 milliseconds.
• with no synchronization, then the pulse width of the 1PPS outputs is about 168
microseconds.
• If the SmpSync of a SAM600-TS is (0), then its 1PPS outputs are disabled.
2.3.9

SAM600 module and system supervision

Each SAM600 module regularly checks various aspects of its health status. If an issue is
detected, a log entry is recorded (see Appendix A). Certain issues are also indicated by the HMI
(see Section 7.2.3).
SAM600 Process Bus I/O System
Operation Manual
Sample synchronization value based on the SAM600's configuration and state
SmpSync Backwards Compatibility True if free running parameter is set to True , then the SmpSync
IEC/IEEE 61850-9-3 (PTP) - No GPS required is an advanced configuration. If
IEDs compare sampled value streams that originate from different SAM600
systems it is recommended to use
whenever possible. The other alternative is to synchronize the different
SAM600 systems from the same 1PPS source.
© Copyright 2017 ABB. All rights reserved
SmpSync are:
Table 6 presents the corresponding sampled
Sample synchronization value (
Health state
(2)
(2) or (1)
1)
3)
(0) or (1)
(2)
GrandMaster clock with GPS setting
SAM600 Process Bus I/O System
SmpSync )
Fault state
(0)
(1) or (0)
2)
(0)
(0)
Table
GUID-16F8C353-96D3-4D9D-BD25-3E879D0324C0 v1
Section 2
6. However, a
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