User Manual

Parameters
List of Parameters
1-250
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 06/2011
Description: Sets the number of 16-bit words in the PKW part of the USS telegram for the field bus interface.
Value: 0: PKW 0 words
3: PKW 3 words
4: PKW 4 words
127: PKW variable
Dependency: Refer to: p2030
Note: The parameter is not influenced by setting the factory setting.
Description: Sets the time values for the fieldbus interface.
The following applies for MODBUS:
p2024[0]: Maximum permissible telegram processing time of the MODBUS slave in which a reply is sent back to the
MODBUS master.
p2024[1]: Character delay time (time between individual characters in the telegram).
p2024[2]: Telegram pause time (pause time between two telegrams).
The following applies for BACnet:
p2024[0]: APDU timeout.
p2024[1,2]: Not relevant.
Index: [0] = Max. processing time
[1] = Character delay time
[2] = Telegram pause time
Dependency: Refer to: p2020, p2030
Note: Re p2024[1,2] (MODBUS):
If the field bus baud rate is changed (p2020), the default time settings are restored.
The default setting is the time required for 1.5 characters (p2024[1]) or 3.5 characters (p2024[2]) (depending on the
set baud rate).
p2023 Field bus int USS PKW no. / Field bus USS PKW
CU230P-2 BT
CU230P-2 HVAC
Access level: 2 Calculated: - Data type: Integer16
Can be changed: T Scaling: - Data set: -
Units group: - Unit selection: -
Min Max Factory setting
0 127 127
p2024[0...2] Fieldbus interface times / Fieldbus times
CU230P-2 BT
CU230P-2 HVAC
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: -
Units group: - Unit selection: -
Min Max Factory setting
0 [ms] 10000 [ms] [0] 1000 [ms]
[1] 0 [ms]
[2] 0 [ms]