User Guide - Eurotherm Ltda

nanodac RECORDER/CONTROLLER: USER GUIDE4.20 LOGIC (2 INPUT) BLOCKPart of the ‘Toolkit Blocks’ option, this block allows a number of logic and comparison operations to be performedon a pair of inputs. For logic functions, the inputs can be inverted to allow, for example, a NOR functionto be implemented by inverting the inputs to an AND function. 12 two-input logic blocks are available.Logic (2 input).1OperationInput 1Input 2FallbackInvertOutputStatusOR10FalseBadNoneOnOk4.20.1 ParametersOperationInput 1(2)FallbackInvertOutputStatusFigure 4.20 Two-input logic block configurationAND, OR, XOR, LATCH (boolean values only)== (Input 1 = Input 2) (Input 1 ≠ Input 2)< (Input 1 < Input 2} (Input 1 > Input 2)=> (Input 1 ≥ Input 2)The inputs to the specified operation. For inverted inputs (below), this shows the ‘real’(non-inverted) state.Configures the output and status values to be used if either input has a status other than‘Good’.FalseBad: Output = False; Status = BadTrueBad: Output = True; Status = BadFalseGood: Output = False; Status = GoodTrueGood: Output = True; Status = GoodFor logic operators only allows neither, either or both inputs to be inverted. Input 1 andInput 2 show the non-inverted state.On or Off depending on input states etc.The status of the result (‘Ok’ or ‘Error’).HA030554Issue 7 Nov 12Page 159