Rockwell Automation 1784-PM16SE SoftLogix Motion Card Setup and Configuration Manual - Manual (Page 390)

Publication 1784-UM003A-EN-P – June 2003
382 Motion Object Attributes
Advanced Feedback Attributes The Advanced Feedback Attributes 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 values based on the current Drive
Polarity Bits settings, the user need not be concerned with manually
configuring each of these attributes. Generally, all command bits are set
according to the current Feedback Type value.
Servo Loop Block Diagrams The following section illustrates the various servo loop configurations that are
supported with this object. Which of these servo loop topologies is in effect
depends on the current settings of the of the Servo Loop Configuration and
External Drive Type attributes.
GSV/SSV Access Attribute Name Data Type Values
GSV Motor Feedback Configuration
Aux Feedback Configuration INT Bit map:
0: Feedback type
0 – rotational
1 – linear scale
1: Distance coding
0 – no
1 – yes
2: Feedback res.
0 – metric
1 – inches
3: Direction polarity
0 – not inverted
1 – inverted
4: Marker quantity
0 – one pulse
1 – cyclic pulses
5: Distance coding
0 – counting pos.
1 – counting neg.
6: Measuring system
0 – relative (incr.)
1 – absolute
7: Absolute Usage
0 – absolute
1 – relative (incr.)
8-15: Reserved