e.g. 'Expression1’< Expression2'
You can use the comparative operations >, >=, <, <=, <> and = to compare the values of two expressions (operands) with each other. As operands, you can enter original signals, calculated expressions or constant values.
The result of such an operation is the Boolean value TRUE or FALSE. You can present and evaluate the result as a new expression like a signal. This way, you can easily generate binary signals and use them then as conditions for other functions.
Note |
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If the crossing point of two charts is located between two measuring points, the result of the comparative operation of the last two measured values is retained until the next measuring point. This means that any change from TRUE to FALSE (or vice versa) is always located at a measuring point. The line which connects two measuring points in the presentation of analog values is just a graphic approximation. |
Arguments
Give at least the following arguments.
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Function |
< |
less than |
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<= |
less than or equal |
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<> |
unequal |
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= |
equal |
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> |
greater than |
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>= |
greater than or equal |
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Left (Expression1) |
Left expression (operand) |
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Right (Expression2) |
Right expression (operand) |
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