Endress+Hauser Ceraphant PTC31B IO-Link Operating Instructions Manual page 73

Ceraphant PTC31B, PTP31B, PTP33B IO-Link
Prerequisite
Description of behavior of
FH1/FL1
Selection
Factory setting
Endress+Hauser
The following functions are available only if a window function has been configured for
the switch output (output 1 (Ou1)).
The window function is implemented using the FH1 and FL1 parameters. Since the
parameter settings depend on one another, the parameters are described all together.
The upper value of the pressure window "FH1" and the lower value of the pressure window
"FL1" can be defined with these functions (e.g., for monitoring a certain pressure range).
When the lower value of the pressure window "FL1" is reached (with increasing or
decreasing pressure), an electrical signal change takes place at the switch output. When
the upper value of the pressure window "FH1" is reached (with increasing or decreasing
pressure), an electrical signal change takes place at the switch output. The difference
between the upper value of the pressure window "FH1" and the lower value of the pressure
window "FL1" is known as the pressure window. The upper value of the pressure window
"FH1" must be greater than the lower value of the pressure window "FL1"! A diagnostic
message is displayed if the upper value entered for the pressure window "FH1" is less than
the lower value of the pressure window "FL1". While it is possible to make this entry, it
does not take effect in the device. The entry must be corrected!
p
FH1
FL1
1
0
1
0
0 0-signal. Output open in quiescent state.
1 1-signal. Output closed in quiescent state.
2 Pressure window (difference between the value of the high window "FH1" and the low window "FL1")
FNO NO contact
FNC NC contact
FH1 Upper value of the pressure window
FL1 Lower value of the pressure window
No selection. The user is free to edit the values.
Factory setting (if no customer-specific setting is ordered):
Switch point SP1/FH1: 90%; switchback point RP1/FL1: 10%
Description of device parameters
2
FNO
FNC
t
A0034026
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