PROGRAMMABLE LOGIC CONTROLLER
The proposed programmable logic controller contains a memory unit for storing data on the allowable and forbidden states of the controlled equipment, a memory unit for storing commands, an address counter, a comparator, a displaying unit, an output data register, a logic control unit, and additional...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The proposed programmable logic controller contains a memory unit for storing data on the allowable and forbidden states of the controlled equipment, a memory unit for storing commands, an address counter, a comparator, a displaying unit, an output data register, a logic control unit, and additionally, a unit for selecting logic operations. The first and the second outputs of the unit for selecting logic operations are connected to the corresponding inputs of the comparators, and the input is connected to the corresponding output of the memory unit for storing data on the states. The availability of the unit for selecting logic operations provides a possibility to perform AND or OR logic operations depending on the control algorithm. The proposed controller is distinctive by its extended functionality range. |
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