IAI America TT-C3 - Manual (Page 73)

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INTELLIGENT ACTUATOR
Chapter 3 X SEL Lanhuage Data
1.
V
alues
and
Symbols
Used
in
SEL
Language
1-5 Variables
(1) Meaning of variable
“Variable” is a technical term used in software programming. Simply put, it means “a box in
which a value is put.” Variables can be used in many ways, such as putting in or taking out a
value and performing addition or subtraction.
Command Operand 1 Operand 2
ADD 1 1
If this command is applied to variable box 1, which already contains 2, then 1 will be added to the
current value and 3 will result.
A variable can be used in many ways, such as:
Taking out a value (456), or
Putting in a value (1234),
Adding a value (+1).
Variable
box 1
Variable
box 1
1 is added.
(Already contains 2)