Siemens SINAMICS G120 Manual page 249

p2021 Field bus interface address / Field bus address
CU230P-2 HVAC Access level: 2
Can be changed: T
Units 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 which 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
Notice: For p0014 = 1, the following applies:
After the value has been modified, no further parameter modifications can be made and the status is shown in
r3996. Modifications can be made again when r3996 = 0.
For p0014 = 0, the following applies:
Before a changed setting becomes permanently effective, a non-volatile RAM to ROM data save is required. To do
this, set p0971 = 1 or p0014 = 1.
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
If p2030 = 5 (BACnet), the following applies:
Min./max./factory setting: 0/127/1
p2022 Field bus int USS PZD no. / Field bus USS PZD
CU230P-2 HVAC Access level: 2
Can be changed: T
Units 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.
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Calculated: -
Scaling: -
Unit selection: -
Max
247
Calculated: -
Scaling: -
Unit selection: -
Max
8
Parameters
List of Parameters
Data type: Unsigned16
Data set: -
Factory setting
0
Data type: Unsigned16
Data set: -
Factory setting
2
1-249