User`s manual

Western Reserve Controls, Inc. 1782-JDC User’s Manual
20
A.4 Parameter Object, Class 0x0F (15)
There are many configurable data parameters associated with your JDC. The JDC uses
a Parameter Object (a collection of these parameters) to assist you in reading and changing
configurable data.
A.4.1 Attributes and Services
Following are the Class Attributes, Instance Attributes and Services are supported by the JDC for
the Parameter Object.
Table A-10 Parameter Class Attributes
Attribute
ID
Access
Rule
Name DeviceNe
t Data
Type
Description of Attribute Value
1 Get Revision UINT Revision of this object. 1
2 Get Max. Instance UINT Maximum instance number of
the Parameter object
12
8 Get Parameter class
descriptor
WORD Bits that describe parameters. 9 (supports parameter
instances, params are
stored in non-volatile
memory)
9 Get Configuration
Assembly
Instance
UINT Instance Number of the
Configuration Assembly.
0. ????
Table A-11 Parameter Instance Attributes
Attribute
ID
Access
Rule
Stub
/Full
Name DeviceNe
t Data
Type
Description of Attribute Value
1 Set Parameter Value data type
specified
in
Descriptor
Data Type
and Data
Size.
Actual value of parameter. It can
be read from or written to. This
attribute is read-only if bit 4 of
Attribute 4 is TRUE.
2 Set Link Path Size USINT Size of link path. If this is 0, then
no link is specified.
Number of bytes.
3 Set Link Path ARRAY of
DeviceNet
path:
DeviceNet path to the object
from where this parameter’s
value is retrieved.
4 Get Descriptor WORD Description of parameter.
5 Get Data Type USINT Data type code.
6 Get Data Size USINT Number of bytes in Parameter
Value