1.The ladder logic program language is basically a(n) _______ set of instruction

Question

1.The ladder logic program language is basically a(n) _______ set of instructions used to create the controller program.

2. When using an XIC instruction, the reference address could be: A any of these. B a bit from an input device. C a bit from an output device. D a bit from an internal relay.

3. The program ______ cycle is a continuous and sequential process of reading the status of inputs, evaluating the control logic, and updating the outputs.

4. An internal control relay: A. does not directly control an output field device. B. is not controlled by the programmed logic. C. is used primarily to control the internal power to the processor module. D. is used primarily when controlling multiple output circuits.

5. The two types of patterns used to accomplish the scan function are: A. horizontal and vertical B. left and right C. up and down D. input and output

Explanation / Answer

1. The ladder logic program language is basically a sequential set of instructions used to create the controller program.

2. When using an XIC instruction ,the reference adress could be

3. The program scan cycle is a continuos and sequential process of reading the status of inputs,evaluating the control logic and updating the outputs.

4. An internal control relay : D. is used when controlling multiple output circuits.

5. The two types of patterns used to accomplish the scan function are: A.horizontal and vertical

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