COMMUNICATIONS
BACnet Communication
91
BACnet Device ID Setup
The BACnet Device Object Identifier is the combination of
Device ID Lo [COMM-26]
and
Device ID Hi
[COMM-27]
, representing the lower and upper hexadecimal values respectively.
The
Device ID Lo [COMM-26]
value is usually a unique device number in the trunk. It must be within a
range from 0 to 65535. The
Device ID Hi [COMM-27]
is usually set to the trunk or building floor number,
and must be a value within a range from 0 to 63.
The calculation of the BACnet Device ID is
[COMM-27]
* 65536 +
[COMM-26]
. This value must be within a
range from 0 to 4194303.
•
If the BACnet Device ID is less than 65536, no calculation is needed;
[COM-27]
is always 0 and
[COM-26]
equals the BACnet Device ID.
For example, if the BACnet ID is 10025, set
[COMM-27]
to 0 and
[COMM-26]
to 10025.
•
For a BACnet Device ID greater than 65535, calculate the BACnet ID / 65536 to get a value with a
remainder. To figure out the remainder value, take BACnet Device ID - (value * 65536). Set
[COMM-27]
to the calculated value and [COMM-26] to the remainder.
For example, if the BACnet Device ID is 842334, then 842334 / 65536 equals value 12 with a remainder.
The remainder value is calculated out by 842334 - (12 * 65536) = 55802. Therefore,
[COMM-27]
should
be set to 12 and
[COMM-26]
should be set to 55802.
BACnet Objects
Commandable Analog Value Objects
Status Analog Value Objects (Read Only)
Object Number
R/W
Object Name
Object Description
Unit
AV 000
RW Reserved
–
–
AV 001
RW FreqRefValue
Frequency Reference Value
Hz
AV 002 through AV 010
RW Reserved
–
–
AV 011 through AV 026
RW Block Transfer
Block transfer mapping 1 to 16
Dependent
Object Number
R/W
Object Name
Object Description
Unit
AV 027 through AV 030
R Reserved
–
–
AV 031
R Output Frequency
Output Frequency Value
Hz
AV 032 through AV 034
R Reserved
–
–
AV 035
R Output Torque
Output Torque
%
AV 036 through AV 038
R Reserved
–
–
AV 039
R Status Word
VFD Status Word from BV 16 through BV 31
–
AV 040
R Reserved
–
–
AV 041
R Drive Type Code
Drive Type Code
–
AV 042
R Warning Code
Warning/Alarm Code
–
AV 043
R Error Code
Error/Fault Code
–
AV 044
R Output Current
Output/Motor Current
Amperes
AV 045
R DC Bus Voltage
DC Bus Voltage
VDC
AV 046
R Output Voltage
Output Voltage
VAC
AV 047
R Count Value
Accumulated TRG DI Counter Value
–
AV 048
R Power Factor
Output Power Factor
–
AV 049
R Output Power
Output Power
kW
AV 050
R IGBT Temperature
IGBT Temperature
° C
AV 051
R Caps Temperature
DC Bus Capacitors Temperature
° C
AV 052
R Carrier Frequency
Actual Carrier Frequency
kHz
Содержание Cerus X-Drive
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