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C-20
DeviceNet Objects
PowerFlex 750-Series Drive DeviceNet Option Module User Manual
Publication 750COM-UM002A-EN-P
DPI Alarm Object
Class Code
Products such as PowerFlex drives use this object for alarms or
warnings. Option Cards do not support this object.
Services
Instances
The number of instances depends on the maximum number of alarms
supported by the queue. The maximum number of alarms can be read in
Instance 0, Attribute 2.
Class Attributes
Hexadecimal
Decimal
0x98
152
Service Code
Implemented for:
Service Name
Class
Instance
0x0E
Yes
Yes
Get_Attribute_Single
0x10
Yes
No
Set_Attribute_Single
Instances (Hex.) (Dec.)
Device
Example Description
0x0000 – 0x3FFF 0 – 16383
Host Drive
0
Class Attributes (Drive)
Only host devices can have alarms.
1
Most Recent Alarm
2
Second Most Recent Alarm
…
…
Attribute ID Access Rule Name
Data Type
Description
1
Get
Class Revision
UINT
Revision of object
2
Get
Number of Instances
UINT
Maximum number of alarms that the
device can record in its queue
3
Set
Alarm Command Write
USINT
0 = No Operation
1 = Clear Alarm
2 = Clear Alarm Queue
3 = Reset Device
4
Get
Alarm Data List
STRUCT of:
USINT
USINT
UINT[n]
Number of parameter instances
Pad byte (always zero)
Array of parameter instance numbers
5
Get
Number of Recorded Alarms
UINT
Number of alarms in the queue. A “0”
indicates the alarm queue is empty.
Содержание PowerFlex 750-Series
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