IAI X-SEL PX, Operation Manual, Page: 170 / 560

143
Part 4 Commands
1.2 Arithmetic Operation

ADD (Add)
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 ADD Variable
number
Data ZR
[Function] Add the content of the variable specified in operand 1 and the value specified in
operand 2, and assign the result to the variable specified in operand 1.
The output will turn ON when the operation result becomes 0.
[Example 1] LET 1 3 Assign 3 to variable 1.
ADD 1 2 Add 2 to the content of variable 1 (3).
5 (3+2=5) will be stored in variable 1.
[Example 2] LET 1 2 Assign 2 to variable 1.
LET 2 3 Assign 3 to variable 2.
LET 3 2 Assign 2 to variable 3.
ADD *1 *3 Add the content of variable 3 (2) to the content of
variable 1 (variable 2).
5 (3+2=5) will be stored in variable 2.

SUB (Subtract)
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 SUB Variable
number
Data ZR
[Function] Subtract the value specified in operand 2 from the content of the variable specified in
operand 1, and assign the result to the variable specified in operand 1.
The output will turn ON when the operation result becomes 0.
[Example 1] LET 1 3 Assign 3 to variable 1.
SUB 1 2 Subtract 2 from the content of variable 1 (3).
1 (3–2=1) will be stored in variable 1.
[Example 2] LET 1 2 Assign 2 to variable 1.
LET 2 3 Assign 3 to variable 2.
LET 3 2 Assign 2 to variable 3.
SUB *1 *3 Subtract the content of variable 3 (2) from the
content of variable 1 (variable 2).
1 (3–2=1) will be stored in variable 2.
144
Part 4 Commands

MULT (Multiply)
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 MULT Variable
number
Data ZR
[Function] Multiply the content of the variable specified in operand 1 by the value specified in
operand 2, and assign the result to the variable specified in operand 1.
The output will turn ON when the operation result becomes 0.
[Example 1] LET 1 3 Assign 3 to variable 1.
MULT 1 2 Multiply the content of variable 1 (3) by 2.
6 (3x2=6) will be stored in variable 1.
[Example 2] LET 1 2 Assign 2 to variable 1.
LET 2 3 Assign 3 to variable 2.
LET 3 2 Assign 2 to variable 3.
MULT *1 *3 Multiply the content of variable 1 (variable 2) by the
content of variable 3 (2).
6 (3x2=6) will be stored in variable 2.

DIV (Divide)
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 DIV Variable
number
Data ZR
[Function] Divide the content of the variable specified in operand 1 by the value specified in
operand 2, and assign the result to the variable specified in operand 1.
The output will turn ON when the operation result becomes 0.
(Note) If the variable specified in operand 1 is an integer variable, any decimal places will be
rounded off.
[Example 1] LET 1 6 Assign 6 to variable 1.
DIV 1 2 Divide the content of variable 1 (6) by 2.
3 (6

2=3) will be stored in variable 1.
[Example 2] LET 1 2 Assign 2 to variable 1.
LET 2 6 Assign 6 to variable 2.
LET 3 2 Assign 2 to variable 3.
DIV *1 *3 Divide the content of variable 1 (variable 2) by the
content of variable 3 (2).
3 (6

2=3) will be stored in variable 2.
146