Communication protocol 147
Drive parameter object, Class 90h
With FDNA-01, drive parameters can also be accessed via explicit
messaging. Explicit messaging makes use of objects consisting of
three parts:
class
,
instance
and
attribute
.
Note:
When using the Drive parameter object to update the
fieldbus configuration groups, changes to the fieldbus configuration
will only take effect when the module is powered up the next time
or when a ‘Fieldbus Adapter parameter refresh’ is given.
Class
is always 144 (90h).
Instance
and
attribute
correspond to the
drive parameter group and index in the following way:
For example, parameter 99.01 is accessed as follows:
22 Speed
Scale
Get, Set
Speed scaling factor. See
parameter description
10
ODVA
SPEED SCALE
.
UINT8
24 Torque
Scale
Get, Set
Torque scaling factor. See
parameter description
11
ODVA
TORQUE SCALE
.
UINT8
29 Ref From
Net
Get
Reflecting attribute 4
BOOL
•
Instance
= Parameter group (0…99)
•
Attribute
= Parameter index (01…99)
•
Class
= 144 =
90h
•
Instance
= 99
=
63h
•
Attribute
= 1
=
01h
#
Attribute
name
Services
Description
Data
type
Summary of Contents for FDNA-01
Page 2: ...List of related manuals See section Related manuals on page 16 ...
Page 4: ......
Page 14: ...14 Safety ...
Page 22: ...22 About the manual ...
Page 32: ...32 Electrical installation ...
Page 72: ...72 Start up 3 Configure the device MAC address ...
Page 76: ...76 Start up ...
Page 96: ...96 Communication profiles ...
Page 154: ...154 Communication protocol ...
Page 162: ...162 Technical data ...
Page 166: ...166 Appendix A Varying the number of drive parameters ...