Siemens SINAMICS G120 List Manual page 316

2 Parameters
2.2 List of parameters
p2021 Field bus interface address / Field bus address
CU250S_V Access level: 2
Can be changed: T
Unit group: -
Min
0
Description: Displays or sets the address for the fieldbus interface (RS485).
The address can be set as follows:
1) Using the address switch on the Control Unit.
--> p2021 displays the address setting.
--> A change only becomes effective after a POWER ON.
2) Using p2021
--> Only if an address of 0 or an address that is invalid for the fieldbus selected in p2030 has been set using the
address switch.
--> The address is saved in a non-volatile fashion using the function "copy from RAM to ROM".
--> A change only becomes effective after a POWER ON.
Dependency: Refer to: p2030
Note: Changes only become effective after POWER ON.
The parameter is not influenced by setting the factory setting.
The parameter is set to the factory setting when the protocol is reselected.
When p2030 = 1 (USS), the following applies:
Min./max./factory setting: 0/30/0
When p2030 = 2 (Modbus), the following applies:
Min./max./factory setting: 1/247/1
p2022 Field bus int USS PZD no. / Field bus USS PZD
CU250S_V Access level: 2
Can be changed: T
Unit group: -
Min
0
Description: Sets the number of 16-bit words in the PZD part of the USS telegram for the field bus interface.
Dependency: Refer to: p2030
Note: The parameter is not influenced by setting the factory setting.
p2023 Field bus interface USS PKW count / Field bus USS PKW
CU250S_V Access level: 2
Can be changed: T
Unit group: -
Min
0
Description: Sets the number of 16-bit words in the PKW part of the USS telegram for the field bus interface.
Value: 0:
3:
4:
127:
Dependency: Refer to: p2030
Note: The parameter is not influenced by setting the factory setting.
316
PKW 0 words
PKW 3 words
PKW 4 words
PKW variable
Calculated: -
Scaling: -
Unit selection: -
Max
247
Calculated: -
Scaling: -
Unit selection: -
Max
8
Calculated: -
Scaling: -
Unit selection: -
Max
127
Data type: Unsigned16
Dyn. index: -
Func. diagram: 9310
Factory setting
0
Data type: Unsigned16
Dyn. index: -
Func. diagram: 9310
Factory setting
2
Data type: Integer16
Dyn. index: -
Func. diagram: 9310
Factory setting
127
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890