Rockwell Automation 1784-PM16SE SoftLogix Motion Card Setup and Configuration Manual - Manual (Page 385)

Publication 1784-UM003A-EN-P – June 2003
Motion Object Attributes 377
Advanced Scaling Attributes The advanced attributes are derived from the Drive Scaling Bits attribute and
map directly to SERCOS IDNs. Thus, for a detailed description of these
attributes refer to the corresponding IDN descriptions found in the SERCOS
Interface standard. Since these attributes are automatically configured to
appropriate defaults, the user need not be concerned with manually
configuring each of these attributes.
Rotational Position Resolution
You may want to specifically configure for fractional unwind applications or
multi-turn absolute applications requiring cyclic compensation. When the
Unwind value for a rotary application does not work out to be an integer value,
the Rotational Position Scaling attribute may modified to a value which is
integer divisible by the Unwind value.
ATTENTION
!
Changing the auto-configured values of the above
advanced attributes can result in unpredictable motion
behavior.
GSV/SSV Access Attribute Name Data Type Values
GSV Position Data Scaling INT Default: rotary axis in Degrees
GSV Position Data Scaling
Factor DINT (see IEC 1491)
GSV Position Data Scaling Exp. INT (see IEC 1491)
GSV Rotational Pos. Resolution DINT Drive Units per Rev
GSV Velocity Data Scaling INT Default: rotary axis in RPM
GSV Velocity Data Scaling
Factor DINT (see IEC 1491)
GSV Velocity Data Scaling Exp. INT (see IEC 1491)
GSV Accel Data Scaling INT
Default: rotary axis in Rad/sec.
2
GSV Accel Data Scaling Factor DINT (see IEC 1491)
GSV Accel Data Scaling Exp. INT (see IEC 1491)
GSV Torque/Force Data Scaling INT Default: %
GSV Torque Data Scaling Factor DINT (see IEC 1491)
GSV Torque Data Scaling Exp. INT (see IEC 1491)