11.9.2
Function block
GUID-9FF4F560-8853-4471-8B19-494EDC7D61AE V1 EN
Figure 289:
Function block
11.9.3
Functionality
The time delay off (8 pcs) function TOF can be used, for example, for a drop-off-delayed
output related to the input signal. The function contains eight independent timers. There
is a settable delay in the timer. Once the input is activated, the output is set immediately.
When the input is cleared, the output stays on until the time set with the
Off delay time
setting has elapsed.
t
0
t
1
+dt
t
2
t
3
t
5
+dt
dt = Off delay time
t
1
t
4
t
5
GUID-D45492E6-5FBC-420C-B1BF-B3A1F65ADF96 V1 EN
Figure 290:
Timer operation
11.9.4
Signals
Table 430:
TOF Input signals
Name
Type
Default
Description
IN1
BOOLEAN
0=False
Input 1 status
IN2
BOOLEAN
0=False
Input 2 status
IN3
BOOLEAN
0=False
Input 3 status
IN4
BOOLEAN
0=False
Input 4 status
Table continues on next page
Section 11
1MRS240050-IB C
Other functions
562
REF615R
Technical Manual
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