Parameter object (classid0fh), Parameter object (class id 0f – Rockwell Automation 2098-DSD-xxx Ultra3000 Digital Servo Drives with DeviceNet User Manual
Page 62
Publication 2098-RM004A-EN-P – August 2002
2-46
Programming Reference
Parameter Object
(Class ID 0F
H
)
The DeviceNet Parameter Object provides the interface to the
Ultra3000 Drive with DeviceNet configuration data. It supplies a full
description of the parameter, including its minimum and maximum
values and a readable text string describing the parameter. The
instances start at one and increment with no gaps.
The table Parameter Instance on page 2-47 lists the parameter
instances implemented in the Ultra3000 Drive with DeviceNet. The
table Parameter Object Instance Attributes on page 2-97 lists the
instance attributes of the parameter object. A parameter value is
accessed via Attribute 1 of a parameter instance. Additional
information about the parameter object is located beginning on
Page 2-99.
DeviceNet Connection Object,
Common Services
Service Code
Service Name
Service Description
0E
H
Get_Attribute_Single
Returns the contents of the specified attribute.
10
H
Set_Attribute_Single
Modifies the specified attribute.
05
H
Reset
Used to reset the Inactivity/Watchdog Timer associated with a Connection Object
Parameter Object,
Attributes for Instance ID = 0 (Class Attributes)
Attr ID
Access
Rule
Name
Data
Type
Description
Semantics of Values
1
Get
Revision
UINT
Revision of this object
Current value = 01
2
Max Instances
Maximum instance number of an
object currently created in this class
level of the device
The largest instance number of a created
object at this class hierarchy level
8
Parameter Class
Descriptor
WORD
Bit field that describe parameters
Bit 0 = supports parameter instances
Bit 1 = full attributes
Bit 2 = nonvolatile storage save command
Bit 3 = params are stored in nonvolatile
storage
9
Configuration
Assembly
Instance
UINT
Instance number of the configuration
assembly
0 = configuration assembly not supported
IMPORTANT
Some parameters cannot be modified while the
Ultra3000 Drive with DeviceNet is enabled. The drive
returns the error code, 10
h
- Device State Conflict, if
you attempt to modify one of these parameters while
the drive is enabled.