Profibus Address Switch - Siemens SINAMICS Equipment Manual

Control Units
3.2 Control Unit CU320-2 DP (PROFIBUS)
3.2.2.7

PROFIBUS address switch

On the CU320-2 DP, the PROFIBUS address is set as a hexadecimal value via two rotary
coding switches. Values between 0
upper rotary coding switch (H) is used to set the hexadecimal value for 16
coding switch (L) is used to set the hexadecimal value for 16
Table 3-21
Rotary coding switches
Setting the PROFIBUS address
The factory setting for the rotary coding switches is 0
There are two ways to set the PROFIBUS address:
1. via a parameter
– To set the bus address for a PROFIBUS node using STARTER, first set the rotary code
– Use the parameter to set the address to a value between 1 and 126.
2. Using the PROFIBUS address switches on the Control Unit
– The address is set manually to values between 1 and 126 using the rotary coding
Note
The rotary coding switches used to set the PROFIBUS address are located beneath the cover.
36
PROFIBUS address switch
Significance
16
16
switches to 0 (00 ) and/or 127
dec hex
switches. In this case, the parameter is only used to read the address.
(00 ) and 127
dec hex dec
21
dec
15
hex
= 16 1
1
= 1 5
0
(7F ).
dec hex
(7F ) can be set as the address. The
hex
and the lower rotary
1
.
0
Examples
35
dec
23
hex
2
3
(00 ).
dec hex
Supplementary component descriptions
126
dec
7E
hex
7
E
Manual, 06/2019