Rockwell Automation 1203-GK5 DeviceNet Communications Module FRN 1.xxx-3.xxx - Manual (Page 101)

DeviceNet Objects (Class Code 0x0F — Parameter Object) C-11
Instance Attributes
Attribute ID Access Rule Stub/Full Name Data Type Description
1 ➀ Stub Parameter Value Specified in
Descriptor,
Data Type and
Data Size
attributes.
Actual value of parameter. Data type specified
in descriptor, data type, and data size.
➀➁
2 Get Stub Link Path Size USINT Size of Link Path attribute. If this attribute is 0,
then no link is specified.
Number of BYTEs in attribute 3.
3 Get Stub Link Path ARRAY of path
segments
Path to the object from where this parameter
value is retrieved.
The link path is limited to 255 BYTEs.
Segment type/port BYTE
Segment Address Path (format
depends on
data contained
in segment
type/port)
4 Get Stub Descriptor WORD Descriptor of parameter. Refer to the table on
page C-12.
5 Get Stub Data Type USINT Data type code. Refer to the table on
page C-13.
6 Get Stub Data Size USINT Number of BYTEs in attribute 1, Parameter
Value.
7 Get Full Parameter Name
String SHORT_
STRING
A text string representing the parameter
name. For example, “frequency #1.”
The maximum number of characters is 16.
(The first byte is a length code.)
8 Get Full Units String SHORT_
STRING
Engineering unit string.
The maximum number of characters is 4.
(The first byte is a length code.)
9 Get Full SHORT_
STRING
The maximum number of characters is 64.
(The first byte is a length code.) Always
returns 0.
10 Get Full Minimum Value Same as
attribute 1
The minimum valid actual value to which
attribute 1, Parameter Value can be set.
11 Get Full Maximum Value Same as
attribute 1
The maximum valid actual value to which
attribute 1, Parameter Value can be set.
12 Get Full Default Value Same as
attribute 1
The actual value attribute 1, Parameter Value
should be set to when the user wants the
default for the parameter.
13 Get Full Scaling Multiplier UINT Multiplier for scaling formula.
14 Get Full Scaling Divisor UINT Divisor for scaling formula.
15 Get Full Scaling Base UINT Base for scaling formula.
➀ The access rule is defined in bit 4 of instance attribute 4, the Descriptor. If bit 4 is 0 the access rule is Set and the Parameter Value can be read and
written. If bit 4 is 1, the access rule is Get and the Parameter Value can only be read.
➁ Data type specified in instance attributes 4 (Descriptor), 5 (Data Type) and 6 (Data Size).