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6F3B0250
144
T1/T1S User’s Manual
7. Instructions
N
Negative pulse contact
Expression
A
Input
N
Output
Function
When the input is ON and the device
A
is changed from ON to OFF (ON at last scan and OFF at this
scan), the output is turned ON.
This instruction is used to detect the device changing from ON to OFF.
Execution condition
Input Operation Output
OFF Regardless of the state of device
A
OFF
ON State of device
A
is OFF
A
is OFF at last scan OFF
A
is ON at last scan ON
State of device
A
is ON OFF
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Device
ÖÖÖÖÖÖ
Example
R100 comes ON for only 1 scan when X000 is ON and X003 changes to OFF.
X000
X003
R100
1 scan time 1 scan time
Note
·
The maximum usable number in a program is 2048.
(
P N (P) (N)
total)
T1S only
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