
Chapter 4. Basic instructions
4-4
4.1.3
OR, OR NOT
OR
OR NOT
Available Device
Flag
Instructions
M
P
K
L
F
T
C
S
D
#
D Integer
Steps
Error
(F110)
Zero
(F111)
Carry
(F112)
OR
OR NOT
O O
O O
O O O
O
1
1) OR
a) Functions
-
The NO contact parallel connection
-
Draw the on/off data of the specified device ( ), performs the OR operation of that data and the
previous operation result, and use it as a new operation result.
2) OR NOT
a) Functions
-
The NC contact parallel connection
-
Draw the on/off data of the specified device ( ), performs the OR operation of that data and the
previous operation result, and use it as a new operation result.
3) Program example
The P061 contact will switched on when the one of P020 and P021 is on.
S
OR
( )
OR NOT
S
S
S
S
P020
( P061 )
P021
OR
S