Metrohm viva 1.1 (ProLab) - Manual (Page 936)

7.10 IO controller
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viva 1.1 (for process analysis)
7.10.8.1.3 General - 2-point controller
The controller acts as a 2-point transfer element.
Behavior of the output
The control deviation represents the difference between setpoint value
and actual value.
7.10.8.1.4 Properties - 2-point controller
Dialog window Configuration ▶ Devices ▶ [Edit] ▶ Properties... ▶ Properties - 'De-
vice type' - 'Device name' ▶ Controller ▶ [Edit] ▶ Properties - 'Controller type'
Control variable
Selection of the controlled variable from all analog inputs or selection of a
calculated value.
Selection 'Port designation' | calculated value
'Port designation'
All analog input ports can be selected.
0% Mapping
Measured value to be used when the Low level (0 %) is applied as input
value.
Only editable for Control variable = calculated value, otherwise
grayed out and not available for editing.
Input range -214,783,647.000 - 214,783,647.000
Default value 0 or controlled variable setting, respectively
100% Mapping
Measured value to be used when the High level (100 %) is applied as
input value.
Only editable for Control variable = calculated value, otherwise
grayed out and not available for editing.
Input range -214,783,647.000 - 214,783,647.000
Default value 100 or controlled variable setting, respec-
tively