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Interpret the Attribute Tables
Chapter 3
Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018
89
Column Heading
Description
Access Rules
The following identifiers are used for Access Rules:
•
Get = Get Attribute List service
GSV = Can be read using the GSV Get System Variable instruction.
Get/SSV = Indicates the attribute can only be set programmatically and cannot
be set by configuration software.
•
Set = Set Attribute List service
SSV = Can be written using the Set System Variable instruction
Set/SSV* = Indicates the attribute cannot be set while the drive power structure
is enabled (Power Structure Enable bit in CIP Axis Status is true).
Set/SSV# = Indicates the attribute cannot be set while the tracking command
(Tracking Command bit in CIP Axis Status is true).
Set/GSV = Indicates the attribute can only be set when the axis is created on
download and cannot be changed either online or programmatically.
Set/SSV = Indicates the attribute can only be set by configuration software on
initial configuration download and cannot be set programmatically.
•
MSG
Message is only used to access drive attributes for which there is no GSV/SSV
access.
In order to use a MSG instruction to access information from a drive, you will
need the Attribute and Class IDs.
Important:
You can only access attributes with a message command if they are
marked as MSG accessible in tables or text. If you attempt to access an attribute
that is not marked as MSG accessible, expect inaccurate data to be returned to
the controller.
•
Logix Designer
This attribute is only available in the Logix Designer application through the Axis
Properties Dialog boxes.
T
Can be accessed as an Axis Tag
Data Type
For example, DINT, UINT, SINT, REAL, BOOL
Default, Minimum, Maximum
Range Limits
DB = Motion Database
Indicates that the default value comes from the database.
FD = Factory Default computed value
∞ = max float = 3.402.... x 10
38
0+ = min float = 1.2.... x 10
-38
maxpos = 2
31
/Conversion Constant
maxspd = 10
3
* maxpos
minspd = minfloat
maxacc = 10
3
* maxspd
minacc = minfloat
- (dash) = Not Applicable
N/A = Not Applicable
Defaults = Unless otherwise specified, all optional attributes default to 0. All
reserved and otherwise unused bits and enumerations are set to 0.
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Страница 496: ...Index 496 Rockwell AutomationPublicationMOTION RM003I EN P February 2018 D device functioncodes 96 E exceptions 496 ...