Liquiline CM44P Operation
Endress+Hauser 97
2. The cleaning trigger is transferred to another device via a binary output. This does
not have its own connected cleaning unit, but its sensors are installed in the medium
affected by cleaning the master and are set to hold by the trigger.
3. The trigger is transferred via an additional binary output to another device, whose
connected sensors have their own cleaning units. The signal can be used to
simultaneously activate a self-cleaning with the master.
10.5.2 Binary input configuration
Menu/Setup/Inputs/Binary input x:y
1)
Function Options Info
Binary input Selection
• Off
• On
Factory setting
On
Switches the input on/off
Signal type Selection
• Static signal
• PFM
Factory setting
Static signal
‣
Select the signal type.
Static signal
Use this setting to read out the position of, for
example, an on/off switch, an inductive
proximity switch or a PLC binary output.
Signal application: for measuring range
switching, acceptance of an external hold, as a
cleaning trigger or for controller activation
PFM
The PFM setting produces a pulse-frequency-
modulated signal that is subsequently available
on the device as a quasi-continuous process
value.
Example: Measuring signal of a flowmeter
Signal type = Static signal
Signal level Selection
• Low
• High
Factory setting
High
Specifies which input signal levels should
activate, for example, measuring range
switching or a cleaning.
Low
Input signals between 0 and 5 V DC
High
Input signals between 11 and 30 V DC
Signal type = PFM
Max. frequency 100.00 to 1000.00 Hz
Factory setting
1000.00 Hz
Maximum frequency of the PFM input signal
Is to equal the maximum possible upper limit of
the measuring range.
If the value selected is too small, higher
frequencies will not be detected. If the value is
too large, on the other hand, the resolution for
small frequencies will be relatively inexact.
Meas. value format Selection
• #
• #.#
• #.##
• #.###
Factory setting
#.##
‣
Specify the number of decimal places.
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