CSI-F-10 User manual - Hydac

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GSM Radio Module CSI-F-10 Page 969.5 Counting Functions9.5.1 Count PulsesThe Count pulses function has three Boolean inputs and onenumerical output. If the Counting input has the value "1", then thechanges from "0" to "1" at the Pulses input will be counted and thecount value will be set at the output. If the Reset input is at "1", thenthe count value, and thus the output as well, will be "0".Flexible counting structures can thus be obtained by placing thePulse generation function upstream (see Chap. 9.8.6). Theplacement of a downstream Note value function (see Chap. 9.4.6)also makes it possible to provide a counter with an interim status.Inputs: x 1 : Pulses (Boolean)x 2 : Counting (Boolesch)x 3 : Reset (Boolean)Outputs: y: Count value (Numerical)Parameters: -9.5.2 Stop WatchThe Stop watch function has two Boolean inputs and one numericaloutput. If the Start/Stop input has the value "1", then the seconds willbe counted and the time will be applied at the output. If the Resetinput is at "1", then the time, and thus the output as well, will be "0".The behavior at the output can be controlled with the Outputparameter.Two settings are possible:Current timeThe output value is the current number of seconds counted.Stopped timeThe output value is not the current quantity, but rather the mostrecently measured quantity. This means that the current count is setto the output whenever the time is stopped with the Start/Stop input.Flexible time measurement structures can thus be obtained byplacing the Pulse generation function upstream (see Chap. 9.8.6).Inputs: x 1 : Start/Stop (Boolean)x 2 : Reset (Boolean)Outputs: y: (Numerical)Parameters: p 1 : Output (entry list)Status 2011/08/17 HYDAC ELECTRONIC GMBH Part.-Nr.: 669752
GSM Radio Module CSI-F-10 Page 979.6 Numerical Conditions9.6.1 EqualsThe Equals function compares two numerical input values forequivalence and outputs a "1" at its Boolean output if the values areequivalent, otherwise a "0".With the Precision parameter, you can adjust how precise thecomparison is. For this the following explanation:In view of the fact that numerical values are presented on computersas floating point numbers with finite precision, normal comparisonsusually fail. Thus, for example, the finite precision of 2/6 is notnecessarily the same as the result of 1/3. The difference goes to 8decimal places, but nonetheless the two values are not recognizedas being equivalent.The point at which one needs to break off the comparison ofnumbers varies from case to case. It is for that reason that you havethe option of controlling the precision of the comparison.If you specify 0.01 for precision, for example, then the numbers12.453 and 12.458 will still be recognized as equivalents to oneanother, because the difference is less than 0.01.Inputs: x 1 : (Numerical)x 2 : (Numerical)Outputs: y: (Boolean)Parameters: p 1 : Precision (Numerical)9.6.2 Does not EqualThe Does not equal function compares two numerical input valuesand outputs a "1" at its Boolean output if the values are not equal,otherwise a "0".For the Precision parameter, see the explanation in the Equalsfunction (Chapter 9.6.1).Inputs: x 1 : (Numerical)x 2 : (Numerical)Outputs: y: (Boolean)Parameters: p 1 : Precision (Numerical)Status 2011/08/17 HYDAC ELECTRONIC GMBH Part.-Nr.: 669752
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CSI-F-10 User manual - Hydac

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