Siemens SIMATIC NET DP/AS-i Link 20E Manual page 25

Note
The PROFIBUS address can only be set in this mode.
2. Change the display of the DP/AS-i Link 20E by pressing the "DISPLAY" button
repeatedly until the "ADR" LED lights up.
The DP/AS-i Link 20E then indicates the currently set PROFIBUS address
using the seven right-hand LEDs of the lower row.
3. If you now press the "DISPLAY" button, the DP/AS-i Link 20E returns to the
slave display. The set PROFIBUS address is retained.
If, on the other hand, you press the "SET" button, you can set a new value for
the PROFIBUS address.
Initially, the flashing LED (second LED from left) shows the most significant bit
of the PROFIBUS address.
4. When you press the "SET" button, this bit is set (LED on).
In contrast, if you press the "DISPLAY" button, the bit is reset (LED off).
The display then moves on to the next LED (third LED from the left) the next
address bit of the PROFIBUS address.
5. By following the steps outlined above, you can now set or reset each of the
individual bits of the PROFIBUS address.
6. When all the bits have been entered, the display of the set address bits flashes.
If you press the SET button again, the set PROFIBUS address is adopted by
the DP/AS-i Link 20E .
If, on the other hand, you press "DISPLAY" the new address is discarded.
The value of the address bits represented by the LEDs of the PROFIBUS address
is illustrated in the following example:
DP/AS-Interface Link 20E
Release 08/2008
C79000-G8976-C235−01
Technical description, installation instructions, operation
25