Supported Services And Objects - Siemens SINAMICS G120 Original Instructions Manual

Configuring the fieldbus
7.6 Communication via RS485
P no. Parameter name
p2024[0 ... 2] Processing times
p2024 [0]: 0 ms ... 10000 ms, maximum processing time (APDU timeout), factory setting: 1000 ms,
p2024[1 ... 2]: No significance for BACnet
p2025[0 ... 3] BACnet communication parameter
p2025 [0]: 0 ... 4194303: Device object instance number,
•
factory setting: 1
p2025 [1]: 1 ... 10:
•
p2025 [2]: 0 ... 39:
•
factory setting: 3
p2025 [3]: 1 ... 127: Maximum Master address, factory setting: 127
•
p2026[0 ... 74] Setting of the COV_Increment
(COV = change of values) 0 ... 4194303.000, factory setting: 1
COV_Increment: Changes the value of the "present value" of an object instance for which the server
transfers an UnConfirmedCOV_Notification or ConfirmedCOV_Notification.
You can use these parameters to set for which inverter value changes an
UnConfirmedCOV_Notification or ConfirmedCOV_Notification result is sent.
The factory setting 1 means that the inverter sends an UnConfirmedCOV_Notification or
ConfirmedCOV_Notification if the considered value, e.g. for a range of 0 ... 10 V, if the absolute value
changes by ≥ 1.
This requires an active SubscribeCOV_Service to send the relevant object instance.
You can also set the COV_Increment via the object property "COV_Increment" of the relevant analog
input, analog output or analog value.
p2027 BACnet language selection
German/English - only becomes effective after power off/on
r2029 Fieldbus fault statistics
Displays receive faults on the fieldbus interface
p2040 Fieldbus monitoring time
0 ms ... 1999999 ms, factory setting: 100 ms.
The more slaves that are connected in the network, the longer the fieldbus monitoring time must be.
If process data is not transferred within one cycle of the fieldbus monitoring time, then the inverter shuts
down with fault F01910.
p2040 = 0 ⇒ bus monitoring deactivated.
7.6.4.2

Supported services and objects

BIBBs used by the inverter
The BIBBs (BIBB: BACnet Interoperability Building Block) are a collection of one or several
BACnet services. The BACnet services are subdivided into A and B devices. An A device
operates as client and a B device as server.
The inverter is a server and therefore operates as B device, as "BACnet Application Specific
Controller" (B-ASC).
The CU230P-2 HVAC uses the BIBBs listed below.
174
Maximum Info Frames, factory setting: 1
Number of APDU Retries (repeated attempts after fault telegrams),
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Inverter with CU230P-2 Control Units