SBI-DN
19
——————
Interface Board DeviceNet
——————
3.2.1.1 Class code
Class Code: 66hex
3.2.1.2 Class attributes
Number
Need in
implementation
Access Rule
Name
DeviceNet
Data Type
Description
of Attribute
Semantics of
values
1
Optional
Get
Revision
UINT
Revision of
this object
dn345
3.2.1.3 Instance Attributes
Number
Need in
implementation
Access Rule
Name
DeviceNet
Data Type
Description
of Attribute
Semantics of
values
dn350
This instance does not provide attributes
3.2.1.4 Common Services
This object has no common services.
3.2.1.5 Object Specific services
Class Instance
32
hex
n/a
Required Get_Drive_Value
Read drive parameter value
33
hex
n/a
Required Set_Drive_Value
Writes drive parameter value
dn355
Service
Code
Need in
implementation
Service Name
Description of Service
3.2.1.6 Behavior
This object is the interface between the DeviceNet network and all Drive parame-
ters. The access to the Drive parameter is carried out by the parameter index; if the
parameter does not exist or may not be accessed for any reason (for example: try
to write a read only parameter) an error code will be returned.
Drive parameters in text format cannot be accessed.
In the following are repeted patterns of how the data frame of data has to be com-
posed for reading/writing Drive parameters.
3.2.1.6.1 Write Drive Parameter
In this example the writing of a Drive parameter is shown; the cases of positive or
wrong writing are distinguished.
3.2.1.6.1.1 Write Drive Parameter Request
The data frame for writing a drive parameter is composed as follows: