Applied Motion RS-232 - Manual (Page 61)

61 920-0002 Rev. I
2/2013
Host Command Reference
DC - Change Distance
Compatibility: All drives
Affects:
FC, FY, FO, FM commands.
Sets or requests the change distance. The change distance is used by various move commands to define more
than one distance parameter. All move commands use the DI command at some level, and many require DC as
well. Examples are FC, FM, FO, and FY. The moves executed by these commands change their behavior after
the change distance (DC) has been traveled. For example, FM is similar to FS, but in an FM move the sensor
input is ignored until the motor has moved the number of steps set by DC. This is useful for masking unwanted
switch or sensor triggers. Since DI sets move direction (CW or CCW), the sign of DC is ignored.
Command Details:
Structure DC{Parameter #1}
Type BUFFERED
Usage READ/WRITE
Non-Volatile YES
Register Access “C” (019)
Parameter Details:
Parameter #1 distance
- units encoder counts
- range 0 to 2,147,483,647
(the sign of negative values is ignored)
Examples:
Command Drive sends Notes
DC80000 - Set change distance to 80000 counts
DC DC=80000
DI-100000 - Set overall move distance to 100000 counts in CCW direction
DC50000 - Set change distance to 50000 counts
VE5 - Set base move velocity to 5 rev/sec
VC2 - Set change velocity to 2 rev/sec
FC - Initiate FC command