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Description
2.10 Communication
That is the data log described above can be called up or the TD420 can be read out. In the
powerservice program, a high-resolution analysis of the 3-phase current and voltage curves
can be performed for fault analysis or to identify system anomalies.
The on-board buffer memory (= register) of the ETUs of the 6-series is constantly written
to. You can set up to two trigger points at which the memory is to be frozen with its
symmetrical time interval before and after this point or these points. You can also import
simulated current and voltage curves into the device with the powerservice software and
then test and document how it would respond. In this test environment, real test tripping is
generated. In this way, the software helps to find the optimized parameter settings for the
user's application.
Currents
Voltages
Sampling rate
Max. recording duration
Recording stop delay
Number of registers
2.10
Communication
The circuit breaker can be integrated into an industrial communication network via
communication modules for remote monitoring and remote operation of a circuit breaker. The
communication modules are used with the electronic releases of ETUs of the 6-series. Its most
important functions are power distribution and generator protection.
Depending on the communication modules used, the following protocols are available:
• Modbus RTU via RS485 (COM042)
• Modbus TCP via Ethernet and other IP communication (COM043)
• PROFIBUS DP (COM040)
• PROFINET IO (COM041)
Up to two different communication modules can be installed at the same time so that
connection to the communication systems is possible with different protocols.
The standards demanded of air circuit breakers in terms of their electrical and mechanical
properties, cost-effectiveness, and adaptability are increasing as a result of ongoing
rationalization and automation. The merging of power distribution engineering and
information technology has opened up a diverse range of new applications for air circuit
breakers.
The power distribution system can be integrated into the information system of the relevant
application, but it can also have its own independent information system.
Siemens considers the following four scenarios to be potential applications:
• Totally Integrated Automation (TIA) for production facilities
• Total Building Solution (TBS) for non-residential buildings
80
Parameters
A
L1, L2, L3, Ne, I
V
U12, U23, U31
Hz
1200 - 2400 - 4800 - 9600
s
16
s
0 to 10
No.
2 independent
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03
g
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