PL.FB
Description
PL.FB returns the position feedback value.
Note that this value is not the pure feedback value read from the feedback deviceA process whereby some proportion of the output signal of a system is passed (fed back) to the input. In automation, a device coupled to each motor to provide indication of the motor's shaft angle, for use in commutating the motor and controlling its speed and position, but also includes the value of the FB1.OFFSET and an internal offset set automatically by the FW when a homing switch is actuated.
AKD BASIC Note
Note that this value is not the pure feedback value read from the feedback device, but also includes the value of the FB1.OFFSET and an internal offset set by the user. If a new value is written to MOVE.POSCOMMAND then PL.FB will be automatically changed such that PL.ERROR (the difference between them) is unchanged.
General Information
Type |
R/O Parameter |
Units |
Depends on UNIT.PLINEAR (pg 1) or UNIT.PROTARY (pg 1) Rotary: counts, rad, deg, (custom units), 16-bit counts Linear: counts, mm, µm, (custom units), 16-bit counts |
Range |
N/A |
Default Value |
N/A |
Data Type |
Float
|
See Also |
FB1.OFFSET |
Start Version |
M_01-00-00-000 |
Index/Subindex |
Object Start Version |
|
---|---|---|
/0 |
M_01-00-00-000 |
Related Topics
PL.ERR | PL.ERRFTHRESH | PL.ERRMODE | PL.ERRWTHRESH
Position Loop