Or↑, Or↓ (Leading And Trailing Contact Instructions) - Panasonic FP7 Series Command Reference Manual

3.6 OR↑, OR↓ (Leading and Trailing Contact Instructions)
3.6 OR↑, OR↓ (Leading and Trailing Contact Instructions)
■
Ladder diagram
X100
R0
■
Devices that can be specified (indicated by ●)
Operand
X Y
bit ●
■
Outline of operation
Type of Operation
instruction
Conduction takes place for 1 scan only following the change of a signal from the OFF to ON state
(rise).
OR↑
Executes an OR operation with the preceding operation result in parallel connection by treating
the input contact as a Form A (normally open) or Form B (normally closed).
Conduction takes place for 1 scan only following the change of a signal from the ON to OFF state
(fall).
OR↓
Executes an OR operation with the preceding operation result in parallel connection by treating
the input contact as a Form A (normally open) or Form B (normally closed).
■
Operation Example
Program operation of "OR↑" in the ladder diagram
Output to Y110 takes place for 1 scan only following the change of X100 or R0 from the ON to
OFF state (fall).
X100
R0
Y110
3-10
OR
Bit device
R L T C
● ● ● ● ●
1 scan
P E SR IN OT
● ● ● ● ●
1 scan
Y110
Specification of bit of
word device
DT.n LD.n
● ●
1 scan
WUME-FP7CPUPGR-12
Index modifier