Power Electronics Profipower, Manual

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POWER ELECTRONICS PROFIPOWER
INSTALLATION AND CONNECTION
23
3.3. Setting of Profibus Address
Two rotary selectors are used to adjust the Profibus address of the
gateway. Through these selectors, we obtain a hexadecimal reading of
the device address.
The range of the valid addresses goes from 1 to 125. That is, from
0x01 to 0x7D. In case of trying to assign a not valid address, for
example 0xFF, display will show Error 3.
Figure 3.12 Message of Error 3 – Error in Profibus controller
When the Profipower gateway starts at the first time, it will try to
communicate by the Modbus address that is given by the Profibus
address, that is, it will try to communicate with the address established
in the rotary selectors. This address is established as 1 by default, that
is, 0x01.
If the set address is out of the allowed range, the error above indicated
will be shown. Verify the setting of both rotary selectors and adjust
them properly.
If, after all, the gateway does not obtain any answer, a search of the
Modbus address of the connected equipment will be realized. This
process can take around 35 seconds (approximately). Once an answer
is found, it assigns the Profibus address to the equipment.