Delta Electronics AH500, Manual

Page: 292 / 547

C h a p t e r 5 A p p l i e d I n s t r u c t i o n s
5.10.13 Reading the Present Position/Speed of an Axis
1. Motion control function block
The motion control function block T_MotionObserve is used to read the present position/speed
of an axis. The value of the Axis input pin indicates an axis number. After the motion control
function block is started, users can read the present position of the axis specified through the
Position output pin, and the speed of the axis specified through the Velocity output pin.
2. Input pins/Output pins
Input pin
Name Function
Data
type
Setting value Time when a value is valid
Axis
Motion axis
number
WORD K1~K16
The value of the Axis input
pin is valid when there is a
transition in the Enable
input pin’s signal from low
to high.
Enable
Manual pulse
generator
mode
BOOL True/False -
State output pin
Name Function
Data
type
Time when there is
a transition in an
output pin’s signal
from low to high
Time when there is a
transition in an output pin’s
signal from high to low
Valid
The execution
of the motion
control
function block
is complete.
BOOL

There is a
transition in the
Valid output pin’s
signal from low
to high when
there is a
transition in the
Enable input
pin’s signal from
low to high.

There is a transition in
the Valid output pin’s
signal from high to low
when there is a
transition in the Enable
input pin’s signal from
high to low.

There is a transition in
the Valid output pin’s
signal from high to low
when there is a
transition in the Error
input pin’s signal from
low to high.
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