3 Configuring the switching outputs
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7
3 Configuring the switching outputs
3.1 Switching hysteresis and window function
Depending on 2 or 4 output variants
Level
t
SP
RP
active
inactive
active
inactive
HNO
HNC
C
M
Y
CM
MY
CY
CMY
K
Diagramme1_EN.pdf 1 03.09.2014 14:40:59
If the level is fluctuating around the set value
(e.g., ripple movement during filling), the hyster
-
esis keeps the switching status of the outputs
stable. When the level is increasing, the output
switches when the respective switching point
(SP) is reached; if the level sinks again, the
output switches back only after the reset switch-
ing point (RP) has been reached.
Depending on 2 or 4 output variants
Level
t
FH
FL
active
inactive
active
inactive
FNO
FNC
C
M
Y
CM
MY
CY
CMY
K
Diagramme2_EN.pdf 1 03.09.2014 14:44:48
The window function enables monitoring of a
defined range. If the level is between window
high (FH) and window low (FL), the output will
be active (normally open) or inactive (normally
closed).
The error status of the measuring device reflects
the cable break monitoring. During an error
status, the measuring device switches to the
safe state; i.e., the switching outputs become
inactive.
As far as the downstream signal evaluation is
concerned, this corresponds to a cable break.
Summary of Contents for NGR
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