Delta Electronics VFD037CB43A-20 Руководство по эксплуатации онлайн [323/363] 460064

Delta Electronics VFD037CB43A-20 Руководство по эксплуатации онлайн [323/363] 460064
Chapter 14 PLC Function |C200 Series
14-38
Command code: Operation:
LD X0
Load contact A of X0
PLF
M0
M0 falling-edge output
LD M0
Load contact A of M0
SET Y0
Y0 latched (ON)
Example
Ladder diagram:
X
0
M0
PLS
M0
Y0
SET
Timing Diagram:
X0
M0
Y0
Time for one scan cycle
Mnemonic Function
END Program End
Operand None
It needs to add the END command at the end of ladder diagram program or
command program. PLC will scan from address o to END command, after the
execution it will return to address 0 and scan again.
Mnemonic Function
NOP No action
Operand None
NOP command does no operation in the program; the result of executing this
command will remain the logic operation. Use NOP command if user wants to delete
certain command without changing the length of the program.
Command code: Operation:
LD X0
Load contact B of X0
NOP
No function
OUT Y1
Drive Y1 coil
Example
Ladder diagram:
X0
Y1
NOP
NOP command will be simplified and not
displayed when the ladder diagram is
displayed.
Mnemonic Function
INV Inverse operation result
Operand None
The operation result (before executing INV command) will be saved inversely into
cumulative register.
Command code: Operation:
LD X0 Load contact A of X0
INV
Operation result
inversed
Example
Ladder diagram:
X0
Y1
OUT Y1 Drive Y1 coil

Содержание

Скачать