Delta-electronics Extension Digital I/O Module DOP-EXIO14RAE Manual de usuario Pagina 74

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Appendix C Use of Basic Instructions|DOP-EXIO Series
Revision March, 2008, Doc. Name: 2007PDD23000014 C-9
Program Example:
Ladder diagram: Instruction code: Operation:
LD X0 Loading in A contact of X0
MC N0 Enabling N0 common series connection
contact
LD X1 Loading in A contact of X1
OUT Y0 Driving Y0 coil
:
LD X2 Loading in A contact of X2
MC N1 Enabling N1 common series connection
contact
LD X3 Loading in A contact of X3
OUT Y1 Driving Y1 coil
:
MCR N1 Disabling N1 common series connection
contact
:
MCR N0 Disabling N0 common series connection
contact
:
LD X10 Loading in A contact of X10
MC N0 Enabling N0 common series connection
contact
LD X11 Loading in A contact of X11
OUT Y10 Driving Y10 coil
:
MCR N0 Disabling N0 common series connection
contact
X0
Y0
MC N0
X1
X2
Y1
MC N1
X3
MCR N1
MCR N0
X10
MC N0
Y10
X11
MCR N0
Mnemonic Functions
LDP
Rising-edge Detection Operation
X0~X17 Y0~Y17 M0~M1279 S0~S127 T0~T127 C0~C254 D0~D599
Operand
9 9 9 9 9 9
-
Explanations:
The method of using LDP is the same as using LD, but the actions of the two instructions differ. LDP
saves the current content and store the detected status of rising-edge to the accumulative register.
Program Example:
Ladder diagram: Instruction code: Operation:
LDP X0
Starting X0 rising-edge detection
AND X1 Series connecting A contact of X1
X0 X1
Y1
OUT Y1 Driving Y1 coil
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