3VL molded-case circuit breaker
4.2 COM20 connection
3WL/3VL circuit breakers with communication capability - PROFIBUS
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System Manual, 03/2011, A5E01051353-02
Time stamp
All important events receive a time stamp from the integral clock (time stamp for tripping
operations (TripLog), no time stamp for alarms (WarningLog), no time stamp for maximum
values (Tstamp)), to enable tracing of the precise course of a fault, for example. The clock
can be synchronized with the clock of the automation system by means of a simple
mechanism.
4.2.2
Setting the PROFIBUS address of the COM20
When configuring the COM20 for data exchange, you must note that the COM20 is supplied
as standard with the PROFIBUS DP address 126. This must then be changed by the user
when configuring the system.
The address is set or changed via the "addressing plug" (3UF7910-0AA00-0). The address
is set at the addressing plug and the addressing plug is connected with the COM20 (above
the PROFIBUS interface). The TEST/RESET button on the COM20 must be pressed for
approximately 3 seconds. As soon as the address has been transferred, the DEVICE
LED flashes and the addressing plug can be removed again.
Example
PROFIBUS address: 58
1 OFF
2 ON
4 OFF
8 ON
16 ON
32 ON
64 OFF
2 + 8 + 16 + 32 = 58
Note
Addressing plug
The addressing plug must be ordered once.
Other options for changing the PROFIBUS address are described in Chapter Setting and
changing the PROFIBUS address of the COM15/COM20 (Page 131).