ABB SAM600 - Page 18

Neutral behavior
The IEC/UCA 61850-9-2LE telegram definition contains a fourth measurement for both
currents and voltages. Depending on the primary equipment and user requirements, SAM600
modules can be configured individually on how the fourth measurement is acquired. Both,
measurements of the primary value and summation of measured phases are available. The
quality information in the IEC/UCA 61850-9-2LE stream will reflect the setting.
Time synchronization
Analog samples are time synchronized in order to provide the phase accuracy required by IEC
61869-9. Synchronization of a SAM600 system with IEDs is achieved by IEEE 1588 (profile IEC
61580-9-3) or through a 1PPS signal. Internally, a SAM600 system always synchronizes using
IEEE 1588.
The following synchronization methods are supported:
•
Synchronization by IEEE 1588 – Access points of a SAM600 system can synchronize
against an external IEEE 1588 master clock with an accuracy of 1μs in order to ensure
synchronous sampling.
•
Free-running – A SAM600 system can operate in a free-running mode with no external
time synchronization. The SAM600 system itself synchronizes internally by means of IEEE
1588 in order to ensure synchronous sampling of the analog data.
• Synchronization by 1PPS – A pulse per second (1PPS) from an external clock is used to
synchronize a SAM600 system through SAM600-TS module with an accuracy of 1μs in
order to ensure synchronous sampling.
For details about supported time synchronization configurations, see
Section 2.3.8.
On each SAM600-TS module only one single link access point or the redundant
PRP/HSR access point can be configured as IEEE 1588 access point. A bridging-
through of time synchronization can be achieved by placing two SAM600-TS
modules in a SAM600 system.
SAM600 configuration with PCM600
PCM600 Protection and Control IED Manager Software is used for configuring SAM600
modules and SAM600 systems. A SAM600 Connectivity Package provides the user with a
wizard-based configuration approach for SAM600 system setup, such as SAM600 module
types and topology configuration.
IEC 61850 access points and relevant IEC/UCA 61850-9-2LE stream configurations, as well as
specific SAM600 module and system settings are configurable by the user.
PCM600 generates a SAM600 system configuration which is downloaded to a SAM600 system
by connecting to any SAM600 module through USB and then replicated to the other SAM600
modules in the system. The IEC 61850 configuration of a SAM600 system can also be exported
and used in IEC 61850 system engineering tools.
Watchdog
The SAM600-TS module provides watchdog functionality. The watchdog is activated during
critical system states. For more details, refer
Section 2.3.11.
Cyber security
SAM600 modules provide means for minimizing the impact of cyber security attacks such as
denial of service or network flooding. By default all unused physical ports and services are
disabled in a SAM600 system configuration.
Section 2 1MRK 511 434-UEN B
SAM600 Process Bus I/O System
10 SAM600 Process Bus I/O System
Operation Manual
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