IAI X-SEL PX, Operation Manual, Page: 208 / 560

181
Part 4 Commands

PRED (Read current position)
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1 Operand 2
Output
(Output, flag)
Optional Optional PRED Axis
pattern
Position
number
CP
[Function] Read the current position of the axis specified in operand 1 to the position specified in
operand 2.
[Example 1] PRED 11 10 Read the current positions of the X and Y-axes to
position No. 10.
[Example 2] An axis pattern can be indirectly specified using a variable. An example of specifying
the operation in [Example 1] indirectly using a variable is shown below.
11 (binary)  3 (decimal)
LET 1 3 Assign 3 to variable 1.
PRED *1 10
[Example 3] LET 1 10 Assign 10 to variable 1.
PRED 11 *1 Read the current positions of the X and Y-axes to the
content of variable 1 (position 10).
182
Part 4 Commands

PRDQ (Read current axis position (1 axis direct))
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1 Operand 2
Output
(Output, flag)
Optional Optional PRDQ Axis
number
Variable
number
CP
[Function] Read the current position of the axis number specified in operand 1 to the variable specified
in operand 2.
Axis No. 1: X-axis, Axis No. 2: Y-axis, Axis No. 3: Z-axis, Axis No. 4: R-axis, Axis Nos. 5, 6:
Additional linear movement axes
[Example] PRDQ 2 100 Read the current position of the Y-axis (axis 2) to
variable 100.
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