Explain off-line programming and its benefits.

What will be an ideal response?


Off-Line programming, which means that the program is being developed off line (without being connected to the process or driven equipment), is the most common method of programming—and, of course, the safest. Since few programs are ever created without mistakes, it is always best to create the program off line. Once the program is complete, it should be tested while still in the Off-Line mode. After testing and verifying the program (circuit) in Off-Line mode, the PLC can be put in the On-Line mode for final verification, testing, and operation.

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Fill in the blank(s) with correct word

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What instruction is required to move the contents of the RAM memory location 42H to port 1?

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