Delta C2000 Series User Manual page 536

Elements driven by SET, RST
Applications commands
MCR is the main control stop command, and is placed at the end of the main control
program. There may not be any contact commands before the MCR command.
The MC-MCR main control program commands support a nested program structure
with a maximum only 8 levels; use in the order N0-N7, please refer to the following
program:
Ladder diagram:
X0
X1
X2
X3
X10
X11
Command
LDP Start of forward edge detection action
X0~X17
Operand
The LDP command has the same usage as LD, but its action is different; its function is
to save current content, while also saving the detected state of the rising edge of the
contact to the cumulative register.
Ladder diagram:
X0
Please refer to the function specifications table for each device in series for the scope
of usage of each operand.
A rising edge contact will be TRUE after power is turned on if the rising edge contact is
On before power is turned on to the PLC.
Command
LDF
Start of reverse edge detection action
X0~X17
Operand
Will remain in their current state
commands
None are actuated
MC
N0
Y0
MC
N1
Y1
N1
MCR
N0
MCR
MC
N0
Y10
N0
MCR
Y0~Y17 M0~M799
X1
Y1
Y0~Y17 M0~M799
16-44
Command
code:
LD X0 Load Contact a of X0
Connection of N0 common series
MC N0
contact
LD X1 Load Contact a of X1
OUT Y0 Drive Y0 coil
:
LD X2 Load Contact a of X2
Connection of N1 common series
MC N1
contact
LD X3 Load Contact a of X3
OUT Y1 Drive Y1 coil
:
MCR N1
Release N1 common series contact
:
MCR N0
Release N0 common series contact
:
LD X10 Load Contact a of X10
Connection of N0 common series
MC N0
contact
LD X11 Load Contact a of X11
OUT Y10 Drive Y10 coil
:
MCR N0 Release N0 common series contact
Function
T0~159
Command
code:
Start of X0 forward edge detection
LDP X0
action
Create
AND X1
contact a of X1
OUT Y1 Drive Y1 coil
Function
T0~159
Description:
C0~C79 D0~D399
Description:
series connection
C0~C79 D0~D399
to