Operation Liquiline CM44P
84 Endress+Hauser
The change in the process - for example, concentration measurement with a varying
medium composition (milk, cream, yogurt) - can be communicated to the transmitter by a
binary input signal. Binary inputs and fieldbus signals are available. For this, your device
must have the appropriate hardware and the necessary activation codes.
You can specify a maximum of 3 dataset switches. Each switch has two states (binary
encoding). Therefore you have a maximum of 2
3
=8 signal combinations for dataset
switching.
1. Open the menu: Setup/Inputs/Photometer/Extended setup/Ext. dataset control.
2. Dataset switch 00x, Dataset switch 0x0, Dataset switch x00: First set up the
dataset switches (maximum 3 switches). You can use a binary input or one of a
maximum of 8 fieldbus signals as the signal source.
3. Then specify the dataset to be used for application adjustment for each available
signal combination (Switch equals 000, Switch equals 001 etc.), (→ 133).
Finally, activate the function (Ext. dataset control=On).
If you activate the function Ext. dataset control the dataset under Menu/Setup/
Inputs/Photometer/Dataset is for display only. You can no longer choose between
the datasets.
External hold
You can trigger a hold for all the devices of a measuring point via a digital signal, e.g. a
fieldbus signal. Make sure that you do not use the hold signal elsewhere. You can assign
an external hold individually to every sensor input.
You will only find the function in the initial menu if you have configured the signals
for the external hold in the general hold settings beforehand:
Menu/Setup/General settings/Hold settings/External hold.
Menu/Setup/Inputs/Channel: Sensor type/Extended setup/ External hold
Function Options Info
Source Selection
• Binary inputs
• Fieldbus signals
Factory setting
None
1. For selecting the signal source of the
external hold.
Multiple selection is possible.
2. OK: confirms selection.
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