model 2704 controller installation and operation handbook - Soliton

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Logic Operators 2704 Controller 15. Chapter 15 Logic Operators Logic Operators allow the controller to perform logical calculations on two input values. These values can be sourced from any available parameter including Analogue Values, User Values and Digital Values. The parameters to use, the type of calculation to be performed, input value inversion and ‘fallback’ value are determined in Configuration level (see Engineering Handbook HA026933). In levels 1 to 3 you can view the values of each input and read the result of the calculation. The Logic Operators page is only available if Analogue and Logic Operators have been enabled in configuration level. This is described in the Engineering Handbook. Up to 32 separate calculations can be performed and a separate page header is provided for each one. 15.1.1. Logic Operations The following calculations can be performed: Off The selected logic operator is turned off AND The output result is ON when both Input 1 and Input 2 are ON OR The output result is ON when either Input 1 or Input 2 is ON XOR Exclusive OR. The output result is true when one and only one input is ON. If both inputs are ON the output is OFF. Latch The output is ON when input 1 turns ON. The output remains ON when input 1 turns OFF. The output is reset to OFF by turning input 2 ON. Equal The output result is ON when Input 1 = Input 2 Greater The output result is ON when Input 1 > Input 2 Less than The output result is ON when Input 1 < Input 2 Greater or Equal The output result is ON when Input 1 > Input 2 Less or Equal The output result is ON when Input 1 < Input 2 Logic input 1 Invert option Logic input 2 Invert option Logic operator See 15.1.1. Output Value (result of calculation) Figure 15-1: Logic Operators 15-2 Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00
2704 Controller Logic Operators 15.2. TO VIEW LOGIC OPERATOR PARAMETERS Do This 1. From any display press as many times as necessary to access the page header menu This Is The Display You Should See Additional Notes 2. Press or to select ‘LOGIC OPERS’ 3. Press to show Subheaders 4. Press or to select ‘Logic 1 (to 32)’ 5. Press to show the parameter list This is a read only value available in Access level 1 (provided the page has been promoted to this level). It displays the type of calculation which has been configured. The choices are: Off, AND, OR, XOR, Latch, Equal, Not Equal, Greater, Less Than, Great or Equal, Less or Equal. 6. Press to show ‘Input 1 Value’ This is a read only value, Off or On. Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00 15-3
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2704 Controller Contents MODEL 2704
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2704 Controller Diagnostics 20. CHA
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2704 Controller Appendix A A. APPEN
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model 2704 controller installation and operation handbook - Soliton

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