ACU-RITE 3500i 425
11.4 Advanced Programming
Logical and Comparative Terms
LOGICAL TERMS
All logical operations can be carried out using the following command
characters or combinations of characters.
COMPARATIVE TERMS
You can compare variables with variables and variables with constants
using equality and inequality operators.
N740 IF (#130 = #360) THEN (or GOTO)
N710 ------------
-- --
-- --
-- --
-- --
N740 IF (#120 = #125) THEN (or GOTO)
Block N700 compares the contents of variable #120 with the contents
of variable #125. If the contents are equal, then the expression is true
and THEN or GOTO directs the program. Otherwise, the expression is
false. At Block N740, the contents of variable #130 are compared with
the constant 360. The result of the comparison is identical to the first
case.
Statement Symbol Tru e/ fa ls e Ta bl e
OR ¦ 0-0= False
0-1 = True
1-0 = True
1-1 = True
EXCLUSIVE
OR ^ 0-0= False
0-1= True
1-0= True
1-1 = False
AND & 0-0= False
0-1= False
1-0= False
True