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E L C P r o g r a m m i n g M a n u a l
F o r m o r e i nf o r m a t i o n v i sit :
w w w. e a t o n . c o m
MN05003003E
3-10
Mnemonic Function
Program steps
END
Program End
1
ELC ELCB
ELCM
PB
PC/PA/PH
PV
PB
PH/PA
Description:
An END statement must be placed at the end of an ELC program. An ELC controller will scan from
program line 0 to the END statement, then return to line 0 again. .
Mnemonic Function
Program steps
NOP
No operation
1
ELC ELCB
ELCM
PB
PC/PA/PH
PV
PB
PH/PA
Description:
This is a no-operation command and has no effect on the operation of the line of code it’s in. NOP is
used to delete a command without changing the number of steps. (Overwrite with NOP)
Program Example:
X0
Y1
NOP
Command NOP will be omitted
when ladder diagram displays.
Instruction:
Operation:
LD
X0
; Load A contact of X0
NOP
; No operation
OUT
Y1
; Drive Y1 coil
Mnemonic Function
Program steps
NP
Negative contact to Positive contact
1
ELC ELCB
ELCM
PB PC/PA/PH
PV PB PH/PA
Description:
When the conditions preceding NP command change from false to true, NP command (works as
contact A) will be ON for a scan cycle. In the next scan cycle it turns OFF.
Program Example:
M0 M1
Y0
P
Instruction:
Operation:
LD
M0
; Load A contact of M0
AND
M1
; And A contact of M1
NP
; Negative contact to Positive contact
OUT
Y0
; Drive Y0 coil
Timing Diagram:
Содержание ELC-PB
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