6.7 Setting And Changing The Profibus Address Of The Com15/Com20 - Siemens SENTRON VL Series System Manual

6.7 Setting and changing the PROFIBUS address of the
COM15/COM20
Presettings
The PROFIBUS DP addresses are stored in the PROFIBUS DP modules COM15 and
COM20 of the circuit breakers. Address 126 is the default as supplied. All nodes on
PROFIBUS DP must have a unique address. This is why a new address has to be assigned
when commissioning the PROFIBUS DP modules.
Assigning an address (COM20)
● If there is no cyclic data exchange with a class 1 master, the changed address becomes
effective immediately. In the case of Switch ES Power this manifests itself as follows:
When downloading parameters with a new address, these are adopted and activated and
thus the connection with Switch ES Power is immediately interrupted. The slave can be
accessed under the new address from now on. Switch ES Power must be restarted.
● The address is set or changed via the "addressing plug" (3UF7910-0AA0). For this, the
addressing plug is connected with the COM20 (above the PROFIBUS interface) and the
TEST/RESET key on the COM20 is pressed for approximately 3 seconds. As soon as the
address has been transferred, the PROFIBUS LED flashes and the addressing plug can
be removed again.
Assigning an address (COM15)
The COM15 of the SENTRON WL assumes the new address, but operation with the
changed address only becomes effective later when the 24 V DC power supply of the
CubicleBUS has been interrupted for a short time. The new address only becomes active
when power has been restored.
Changing the PROFIBUS address via PROFIBUS DP
Note
To change the PROFIBUS DP address using Switch ES Power, you must first ensure that
the current address (e.g. 126 at initial startup) has only been assigned once. For this reason,
all new COM15 modules must never be connected simultaneously to PROFIBUS DP,
because otherwise all modules with the same address will be overwritten. It is therefore
necessary for the new modules to be connected to PROFIBUS DP gradually and each
addressed individually.
Proceed as follows to change the address:
From the "Switching device" menu select "Online Open".
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02

6.7 Setting and changing the PROFIBUS address of the COM15/COM20

PROFIBUS data transfer
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