WINDOW
Input 2
Input 1
&
&
≥1
Output
Figure 25: Window Mode
HYSTERESIS
Input 2
Input 1
&
≥1
Q
Output
R
S
Figure 26: Hysteresis Mode
NOTE
If no physical signal is applied to the external input or if a function other than “
External
input
” is selected for pin 2 configuration (ISDU 121), the status of the external input is
interpreted as logical 0.
Table 17: Smart Tasks – Timer
ISDU
Name
Data
type
Data
storage
Length
Access
Default
value
Value/Range
Index
Subin‐
dex
DEC
HEX
1085
43D
-
Timer 1 mode
Uint
Yes
1 byte
rw
0
0 = Deactivated
1 = T-on delay
2 = T-off delay
3 = T-on/T-off
4 = Pulses (one shot)
1086
43E
-
Timer 2 mode
1 byte
1087
43F
-
Time 1 setup
2 bytes
1
1 ... 30,000 ms
1088
440
-
Time 2 setup
2 bytes
Timer 1/2 mode
can be used to select various delay modes.
The relevant delay time is selected under
Time 1/2 setup
.
See the following graphic for details on how the different modes work.
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Input signal
Timer 1 / Timer 2
DEACTIVATED
Output signal
Timer 1 / Timer 2
T-ON DELAY
Output signal
Timer 1 / Timer 2
T-OFF DELAY
Output signal
Timer 1 / Timer 2
T-ON / T-OFF DELAY
Output signal
Timer 1 / Timer 2
IMPULSE (one shot)
Output signal
Timer 1 / Timer 2
Figure 27: Timer 1 / Timer 2
Table 18: Smart Tasks – Inverter
ISDU
Name
Data
type
Data
storage
Length
Access
Default
value
Value/Range
Index
Subin‐
dex
DEC
HEX
1089
441
-
Inverter 1
Uint
Yes
1 byte
rw
0
0 = Not inverted
1 = Inverted
1090
442
-
Inverter 2
1 byte
Inverter 1/2
inverts the logical condition of the timer 1/2 output signal.
NOTE
Inverting the
Timer 1/2
output signal does not affect how the delay modes work.
Note that due to the inversion of the
Timer 1/2 output signal
, a set switch-on delay, for
example, can act like a switch-off delay.
OPERATION
9
8028041/2022-08-16 | SICK
O P E R A T I N G I N S T R U C T I O N S | MPB10
47
Subject to change without notice
