Siemens 6SL3210-1SB11-0UA0 [158/318] Profibus uss address switch

Siemens 6SL3210-1SE11-3UA0 [158/318] Profibus uss address switch
CU305 Control Units
6.3 Interfaces
Manual
158 Manual, 01/2011, 6SL3097-4AC10-0BP2
6.3.2.3 PROFIBUS/USS address switch
With the CU305 DP, the address switch can be used to set both PROFIBUS addresses and
USS addresses. Operation via USS is only possible if the factory setting in the STARTER of
PROFIBUS is changed to USS.
The factory setting for the address switch is 0 or 127. The address switch is located behind
the blanking plate. The blanking plate is part of the scope of supply.
Table 6- 5 PROFIBUS/USS address switch
Technical specifications Switch Significance
S1 2
0
= 1
S2 2
1
= 2
S3 2
2
= 4
S4 2
3
= 8
S5 2
4
= 16
S6 2
5
= 32
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S7 2
6
= 64
Setting the PROFIBUS address
1. Setting via parameter p0918
The STARTER is used to set the bus address for a PROFIBUS node to a value
between 1 and 126. This is only possible if the address switch is set to 0 or 127
(factory setting).
2. Manual setting
The address switch (DIP switch) is used to manually set the bus address to a value
between 1 and 126. In this case, p0918 is only used to read the address.
Setting the USS address
1. Setting via parameter p2021
The STARTER is also used to set the bus address for USS nodes to a value between
0 and 30. This is only possible if the address switch is set to 0 or 127 (factory setting).
2. Manual setting
The address switch (DIP switch) is used to manually set the address to a value
between 0 and 30. If addresses are set manually to values >30, the setting will revert
to the value set in parameter p2021 or the default value.
Note
A value of 0 is used as the address for USS if no other address has been saved in
parameter p2021.

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