340 Rockwell Automation Publication MOTION-RM003I-EN-P - February 2018
Strobe Master Offset
Usage Access T Data
Type
Default Min Max Semantics of Values
Required - FPV
PV only
Get/
GSV
T REAL - - - Master Position Units
The Strobe Master Offset attribute is the position offset that was applied to the
master side of the position cam when the last Motion Group Strobe Position
(MGSP) instruction was executed. The Strobe Master Offset is returned in master
position units. The Strobe Master Offset shows the same unwind characteristic as
the position of a linear axis.
Start Master Offset
Usage Access T Data
Type
Default Min Max Semantics of Values
Required - FPV
PV only
Get/
GSV
T REAL - - - Master Position Units
The Start Master Offset attribute is the position offset that was applied to the
master side of the position cam when the last Motion Axis Move (MAM)
instruction with the move type set to Absolute Master Offset or Incremental
Master Offset was executed. The Start Master Offset is returned in master
position units. The Start Master Offset shows the same unwind characteristic as
the position of a linear axis.
Direct Command Velocity
Usage Access T Data
Type
Default Min Max Semantics of Values
Required - FV
Get/
SSV
T REAL - - + Position Units / Sec
The Direct Command Velocity attribute provides tag access to the velocity
command for the specified axis. This can be used to directly control the speed of a
motor when an associated drive is configured for velocity control mode. In order
for this attribute's value to be applied as the velocity command, a Motion Drive
Start instruction will be executed, which in turn sets the Direct Velocity Control
Status bit of the Motion Status Bits attribute. If this bit is not set, the Direct
Command Velocity value has no effect on axis motion. Only CIP Drive Axis data
types currently support this capability.
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