Manual -> Pictures -> Picture elements -> Picture Elements -> Combined element -> Creating a formula -> Formula editor -> Examples |
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The single value resp. status bits can be added to the formula with a doubleclick.
For more information about status bits, see also chapter Statusverarbeitung.
The following examples shows a simple logical AND operation with two value bits:
Example |
Formula: X01.03 AND X02.03 |
This formula has the status TRUE, if bit 3 of variable 1 and bit 3 of variable 2 both have the value 1.
The value or the status of a variable can also be compared analogically:
Example |
(X01.Value > X02.Value) |
Additionally, analog values can be compared on a logical basis:
Example |
(X01.Value> X02.Value) AND (X01.Value = X02.Value) |
This is also possible with value bits and status bits.
Example |
(X01.Value> X02.Value) AND (X01.Value = X02.Value) OR (X01.03 = X02.03) |
It is also possible to compare the value with a decimal or hexadecimal value.
Example |
Formula: (X01.Value = 111) Formula: (X01.Value = 0x6F) |
If a decimal value is used, it will be displayed in hexadecimal format later. If a decimal value is entered and confirmed, the value is displayed as a hexadecimal value upon restart.
Info |
It is not possible to use a colon or a point when entering values. |