Delta VFD037CP43B-21

Chapter 16 PLC Function Applications│CP2000
16-43
Command Function
AND
Connect contact a in series
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
    
－
The AND command is used to create a series connection to contact a; first reads
current status of the designated series contact and logical operation results before
contact in order to perform "AND" operation; saves results in cumulative register.
Ladder diagram:
X1
X0
Y1
Command code: Description:
LDI X1 Load Contact b of X1
AND X0
Create series
connection to contact a
of X0
OUT Y1 Drive Y1 coil
Command Function
ANI
Connect contact b in series
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
    
－
The ANI command is used to create a series connection to contact b; its function is to
first read current status of the designated series contact and logical operation results
before contact in order to perform "AND" operation; saves results in cumulative
register.
Ladder diagram:
X0
X1
Y1
Command code: Description:
LD X1 Load Contact a of X1
ANI X0
Create series
connection to contact b
of X0
OUT Y1 Drive Y1 coil
Command Function
OR
Connect contact a in parallel
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
    
－
The OR command is used to establish a parallel connection to contact a; its function is
to first read current status of the designated series contact and logical operation
results before contact in order to perform "OR" operation; saves results in cumulative
register.
Ladder diagram:
X0
X1
Y1
Command code: Description:
LD X0 Load Contact a of X0
OR X1
Create series
connection to contact a
of X1
OUT Y1 Drive Y1 coil