Siemens S120 - PROFIBUS Address Switch

Control Units, Control Unit Adapters and operating components
7.4 Control Unit CU310-2 DP (PROFIBUS)
AC Drive
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
291
7.4.2.3
PROFIBUS address switch
The PROFIBUS address for the CU310-2 DP is set as a hexadecimal value on two rotary
coding switches.
Values may be set between 0
dec
(00
hex
) and 127
dec
(7F
hex
).
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 7- 23 PROFIBUS address switch
Rotary coding switches
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
).
The PROFIBUS address is set as follows:
1. via a parameter (see SINAMICS S120/S150 List Manual)
– To set the bus address for a PROFIBUS node using STARTER, first set the rotary
code switches to 0
dec
(00
hex
) and 127
dec
(7F
hex
).
– Then use the parameter to set the address to a value between 1 and 126.
2. via PROFIBUS address switch
– The PROFIBUS address is set manually to a value between 1 and 126 on the two
rotary coding switches. In this case the address is merely read out via the parameter.
Note
The rotary coding switches used to set the PROFIBUS address are found beneath the
blanking cover (see
CU310-2 DP Interface Overview (Page 289)