Appendix D How to Use PLC Function
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D-30
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11
D.5.6 Rising-edge/falling-edge Output Commands
Commands
Function
Operands
PLS
Rising-edge output
Y, M
PLF
Falling-edge output
Y, M
D.5.7 End Command
Command
Function
Operands
END Program
end
none
D.5.8 Explanation for the Commands
Mnemonic Function
LD Load
A
contact
X0~X17 Y0~Y17
M0~M159 T0~15 C0~C7 D0~D29
Operand
9
9
9
9
9
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Explanations:
The LD command is used on the A contact that has its start from the left BUS or the A contact that is
the start of a contact circuit. Function of the command is to save present contents, and at the same
time, save the acquired contact status into the accumulative register.
Program Example:
Ladder diagram
Command code
Operation
LD
X0
Load contact A of X0
AND
X1
Connect to contact A of X1
in series
X0
X1
Y1
OUT
Y1
Drive Y1 coil
Mnemonic Function
LDI Load
B
contact
X0~X17 Y0~Y17
M0~M159 T0~15 C0~C7 D0~D29
Operand
9
9
9
9
9
--
Содержание AC Motor Drive VFD-E
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