Ultrasonic flow meter
SU2020 SU8020 SU2021 SU8021 SU2621 SU8621
25
u
Connect the IO-Link master to a parameter setting software.
u
Set the port of the master to the IO-Link operating mode.
u
Connect the device to a free port of the IO-Link master.
w
The unit switches to IO-Link mode.
u
Change parameter settings in the software.
u
Write parameter settings to the unit.
Notes on parameter setting
Ò
Manual of the parameter setting software
10.3 Output configuration
This chapter describes the options for the output signals at OUT1 and OUT2.
10.3.1 Switching signal for limit value monitoring
A switching signal can be output for process value monitoring. OUTx changes its switching state when
the set switching limits are exceeded or not reached. You can choose between hysteresis and window
function.
Hysteresis function:
SP
t
Hno
HY
Hnc
rP
1
0
1
0
1
Fig. 18: Hysteresis function
1:
Process value
t:
Time
SP:
Set point
rP:
Reset point
HY:
Hysteresis
Hno:
Hysteresis function NO (normally open)
Hnc:
Hysteresis function NC (normally closed)
When the hysteresis function is set, the set point [SP] and the reset point [rP] are set. The rP
value must be lower than the SP value. The difference between SP and rP is at least 0.5 % of
the final value of the measuring range (= hysteresis). If only the set point is changed, the reset
point is changed automatically; the difference remains constant.
Window function:
FE
FE
FH
HY
HY
t
Fno
Fnc
FL
1
0
1
0
1
Fig. 19: Window function
1:
Process value
t:
Time
FH:
Upper limit value
FL:
Lower limit value
HY:
Hysteresis
FE:
Window area
Fno:
Window function NO (normally open)
Fnc:
Window function NC (normally closed)
