Toshiba PROSEC T1 - Page 150

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148
T1/T1S User’s Manual
7. Instructions
TOF OFF delay timer
Expression
Input
¾
[
A
TOF
B
]
¾
Output
Function
When the input is changed from OFF to ON, the output and the timer device corresponding to the
timer register
B
are set to ON. When the input is changed from ON to OFF, timer updating for
B
is
started. The elapsed time is stored in
B
. When the specified time by
A
has elapsed after the input
came OFF, the output and the timer device are turned OFF. (Timer updating is stopped)
The available data range for operand
A
is 0 to 32767.
Execution condition
Input Operation Output
OFF
Elapsed time
<
preset time (timer is updatin
g
)
ON
Elapsed time
³
preset time (timer is not updatin
g
)
OFF
ON No operation (timer is not updatin
g
)ON
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
Preset time
ÖÖÖÖÖÖÖÖÖÖ
0 - 32767
B
Elapsed time
Ö
Example
Y021 (and the timer device T.002) is turned OFF 1 second after X000 came OFF.
X000
T002
T.002
Y021
Preset time (1 s) Less than preset time
Preset value
Note
·
Time is set in 10 ms units for;
T1: T000 to T031 (0 to 327.67 s)
T1S: T000 to T063 (0 to 327.67 s)
·
Time is set in 100 ms units for;
T1: T032 to T063 (0 to 3276.7 s)
T1S: T064 to T255 (0 to 3276.7 s)
·
Multiple timer instructions (TON, TOF or
SS) with the same timer register are not
allowed.
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