Delta VFD2A8MS21ANSAA

Chapter 16 PLC Function ApplicationsMS300
698
Command
Function
MPP
Read stack
Operand
N/A
Retrieves the result of the previously saved logical operation from the stack, and saves
to the cumulative register. (subtract one from stack pointer)
Ladder diagram:
X0
Y1
X1
M0
X2
Y2
END
MPP
MRD
MPS
Command code:
Description:
LD
X0
Load Contact A of X0
MPS
Save to the stack
AND
X1
Create a series
connection to
contact A of X1
OUT
Y1
Drive Y1 coil
MRD
Read the stack
(pointer does not
change)
AND
X2
Create a series
connection to
contact A of X2
OUT
M0
Drive M0 coil
MPP
Read stack
OUT
Y2
Drive Y2 coil
END
Program conclusion
Command
Function
OUT
Drive coil
Operand
X0–X17
Y0–Y17
M0–M799
T0–159
C0–C79
D0–D399
－


－
－
－
Outputs the result of the logical operation before the OUT command to the designated
element.
Coil contact action:
Result:
Out command
Coil
Access Point:
Contact A (N.O.)
Contact B (N.C.)
FALSE
OFF
Not conducting
Conducting
TRUE
ON
Conducting
Not conducting
Ladder diagram:
X0
X1
Y1
Command code:
Description:
LD
X0
Load Contact B of
X0
AND
X1
Establish a parallel
connection to
contact A of X1
OUT
Y1
Drive Y1 coil