Delta Electronics VFD037CH23A-21 [488/638] Other command
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Delta Electronics VFD037CH23A-21 [488/638] Other command

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Delta Electronics VFD037CH23A-21 [488/638] Other command
Chapter 16 PLC Function CH2000 Series
16-35
Other Command
Commands Function Operands
NOP No function --
INV Inverse operation result --
P Indicator P
16.6.2 Explanation for the Command
Mnemonic Function
LD
Load A contact
X0~X17 Y0~Y17 M0~M799 T0~159 C0~C79 D0~D399
Operand
－
L 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.
Command code
Operation
LD X0
Load contact A of X0
AND X1
Connect to contact A of
X1 in series
Example
Ladder diagram
X0
X1
Y1
OUT Y1 Drive Y1 coil
Mnemonic Function
LDI
Load B contact
X0~X17 Y0~Y17 M0~M799 T0~159 C0~C79 D0~D399
Operand
－
The LDI command is used on the B contact that has its start from the left BUS or
the B 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.
Command code: Operation:
LDI X0 Load contact B of X0
AND X1 Connect to contact A of
X1 in series
Example
Ladder diagram:
X0
X1
Y1
OUT Y1 Drive Y1 coil

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