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7 Configuration
7.17 Logic
The optional logic function (extra code 260 "Math/Logic") supports formulas which can be freely used for
logical operations (binary values).
The results are available in the digital selector. If the function is not active, the logical value = 0.
Activating the function
On the device, the Logic function is only available when activated. To do so, the extra code "Math/Logic"
must first be activated in the setup program using an activation code (Setup program: Online parameters
> Enabling of extra codes).
The Logic function is available in the setup program after enabling the "Math/Logic" option (Configura-
tion: Basic device > Math/Logic).
Device dialog box
Parameter
Parameter Selection/settings Description
Function Without function Function is switched off.
Formula Logical links with freely selectable vari-
ables and operators
The formula is created with the setup
program.
Channel designa-
tion
Log ...
Use default text or enter other text.
Name (abbreviation) with max. 5 charac-
ters that is used in the visualizations.
Channel descrip-
tion
Logic ...
Use default text or enter other text.
Description (designation) with max. 21
characters
Save using power
off
No
Yes
If "Yes", the current value is saved upon
switch-off (power off) and is available
again upon switch-on (power on).
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