Endress+Hauser memo-graph Version II Betriebsanleitung Seite 76

Factor "a"
Combination "?"
Input "y2"
Factor "b"
Constant "c"
Engineering units
Decimal point
Description "H"
Description "L"
Event text L->H
Event text H->L
Event window
What is displayed
Copy set up
Alarm set points 1...4
74
Factor 'a', with which the value of signal 'y1' is multiplied.
Factory default: 1.
Addition/subtraction:
"Not used": Switches part 2 of the formula y2*b) off.
Logical combination:
"AND": Both inputs must be in the prescribed condition in order to be recognised as
logically true ("H"). "OR": It is enough if one of the two inputs is in the prescribed
condition.
See input'y1'
Addition/subtraction:
Factor 'b', with which the value of signal 'y2' is multiplied.
Sum/average:
Factor, with which the sum or average of channels "y1" to "y2" are multiplied.
Constant 'c' is added to the result of the combination of the two signals 'y1' and 'y2'.
Factory default: 0. Input is in the engineering units for this combination.
Technical (physical) unit of the combination, e.g. "Units" when summing units
produced.
Number of decimal points for the display and alarm set point input (counter alarm).
Description of the condition when the combination is logically true ("H"). Only on
logical combinations.
Description of the condition when the combination is logically false ("L"). Only on
logical combinations.
Description of condition change, from logically false ("L") to logically true ("H"). Only
on logical combinations.
Description of condition change, from logically true ("H") to logically false ("L"). Only
on logical combinations.
"Display+acknowledge": Message window must be acknowledged by operating the
"OK" push button.
"Do not display": There is no event window displayed. The events are however still
entered in the event list.
The results of the combination are stored in preset time periods (e.g. daily, monthly ...
see "Signal analysis"). Here, the counter type which is to be permanently displayed is
selected.
Copies the settings of the actual combination to the selected combination (including
alarm set points). The last two characters of the channel identifier of the target
channel are substituted by the channel number.
Tip: If the settings for more than one combination are very similar (e.g. more than one
counter sum) this function makes setting up easier.
Setting is only necessary if the result of the combination is to be monitored for alarm
set point infringements.
For detailed settings see alarm set point settings for digital inputs.