Parameters
List of Parameters
1-230
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
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).
Description: Sets the communication parameters for BACnet.
p2025[0]:
Device object instance number (0 ... 4194303).
p2025[1]:
Maximum number of info frames (1 ... 10).
p2025[2]:
Number of APDU retries (0 ... 39).
p2025[3]:
Maximum master address (1 ... 127).
Index: [0] = Device object instance number
[1] = Maximum number of info frames
[2] = Number of APDU retries
[3] = Maximum master address
Dependency: Refer to: p2030
Description: Sets BACnet COV (change of value) increment values.
Index: [0] = Analog input 0
[1] = Analog input 1
[2] = Analog input 2
[3] = Analog input 3
Dependency: Refer to: p2030
p2024[0...2] Fieldbus interface times / Fieldbus times
CU230P-2 HVAC Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: -
Min Max Factory setting
0 [ms] 10000 [ms] 1000 [ms]
p2025[0...3] Fieldbus interface BACnet settings / BACnet setting
CU230P-2 HVAC Access level: 3 Calculated: - Data type: Unsigned32
Can be changed: U, T Scaling: - Data set: -
Min Max Factory setting
0 4194303 1
p2026[0...3] Fieldbus interface BACnet COV increment / BACnet COV incr
CU230P-2 HVAC Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: -
Min Max Factory setting
0.000 4194303.000 1.000
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