Delta CFP2000 Series User Manual page 618

Command
Save to stack
MPS
Operand
Save current content of cumulative register to the stack. (Add one to stack pointer)
Command
Read stack (pointer does not change)
MRD
Operand
Reads stack content and saves to cumulative register. (Stack pointer does not
change)
Command
Read stack
MPP
Operand
Retrieves result of previously-save logical operation from the stack, and saves to
cumulative register. (Subtract one from stack pointer)
Ladder diagram:
X0
MRD
MPP
Command
Drive coil
OUT
X0–X17
Operand
－
Outputs result of logical operation before OUT command to the designated element.
Coil contact action:
Result:
FALSE
TRUE
Ladder diagram:
X0
MPS
X1
Y1
X2
M0
Y2
END
Y0–Y17 M0–M799

Out command
Coil
Contact a (N.O.) Contact b (N.C.)
Off Not conducting
On Conducting
X1
Y1
16-45
Chapter 16 PLC Function Applications│CFP2000
Function
N/A
Function
N/A
Function
N/A
Command code:
LD X0
MPS
AND X1
OUT Y1
MRD
AND X2
OUT M0
MPP
OUT Y2
END
Function
T0–159

－
Access Point:
Conducting
Not conducting
Command code:
LD X0
AND X1
OUT Y1
Description:
Load Contact a of X0
Save to stack
Create series connection
to contact a of X1
Drive Y1 coil
Read stack (pointer does
not change)
Create series connection
to contact a of X2
Drive M0 coil
Read stack
Drive Y2 coil
Program conclusion
C0–C79 D0–D399
－ －
Description:
Load Contact b of X0
Establish parallel
connection to contact a
of X1
Drive Y1 coil