Siemens SINAMICS S120 - Page 781

Communication
11.2 Communication via PROFIBUS DP
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
781
● PROFIBUS interface
The PROFIBUS is described in the "SINAMICS S120 Control Units and Supplementary
System Components Manual".
● PROFIBUS diagnostic LED
Note
A teleservice adapter can be connected to the PROFIBUS interface (X126) for remote
diagnostics purposes.
On the CU320-2 DP, the PROFIBUS address is set as a hexadecimal value via two rotary
coding switches. Values between 0
dec
(00
hex
) and 127
dec
(7F
hex
) can be set as the address.
The upper rotary coding switch (H) is used to set the hexadecimal value for 16
1
and the
lower rotary coding switch (L) is used to set the hexadecimal value for 16
0
.
Table 11- 7 PROFIBUS address switch
Rotary coding switch-
es
Significance
Examples
21
dec
35
dec
126
dec
15
hex
23
hex
7E
hex
16
1
= 16 1 2 7
16
0
= 1 5 3 E
Setting the PROFIBUS address
The factory setting for the rotary coding switches is 0
dec
(00
hex
).
There are two ways to set the PROFIBUS address:
1. Using a parameter
– To set the bus address for a PROFIBUS node using STARTER, first set the rotary
code switches to 0
dec
(00
hex
) and/or 127
dec
(7F
hex
).
– Use the parameter to set the address to a value between 1 and 126.
Information can be taken from the following reference:
Reference: SINAMICS S120/S150 List Manual
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
switches. In this case, the parameter is only used to read the address.