Count-Up (CTU) Counter: The CTU counter refers to an up counter This counter is used to count an event that occurs logically or externally and places that value in the counter’s accumulator. The accumulated value can even be maintained during false rung conditions and can be reset back to 0 using reset instruction. Math functions: The basic math functions performed by PLCs are as follows: Addition This function is used to add one piece of data to another. It is also called as ADD. Subtraction This function is used to subtract one piece of data from another. It is also called as SUB.

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Scenario You work for a small company that exports artisan chocolate. Although you measure your products in kilograms, you often get orders in both pounds and ounces. You have decided that rather than have to look up conversions all the time, you could use Python code to take inputs to make conversions between the different units of measurement. You will write three blocks of code. The first will convert kilograms to pounds and ounces. The second will convert pounds to kilograms and ounces. The third will convert ounces to kilograms and pounds. The conversions are as follows: 1 kilogram = 35.274 ounces 1 kilogram = 2.20462 pounds 1 pound = 0.453592 kilograms 1 pound = 16 ounces 1 ounce = 0.0283 kilograms 1 ounce = 0.0625 pounds For the purposes of this activity the template for a function has been provided. You have not yet covered functions in the course, but they are a way of reusing code. Like a Python script, a function can have zero or more parameters. In the code window you…

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Chapter 11, Problem 11P

Program Plan Intro

Count-Up (CTU) Counter:

The CTU counter refers to an up counter

This counter is used to count an event that occurs logically or externally and places that value in the counter’s accumulator.

The accumulated value can even be maintained during false rung conditions and can be reset back to 0 using reset instruction.

Math functions:

The basic math functions performed by PLCs are as follows:

Addition

This function is used to add one piece of data to another.

It is also called as ADD.

Subtraction

This function is used to subtract one piece of data from another.

It is also called as SUB.

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Scenario You work for a small company that exports artisan chocolate. Although you measure your products in kilograms, you often get orders in both pounds and ounces. You have decided that rather than have to look up conversions all the time, you could use Python code to take inputs to make conversions between the different units of measurement. You will write three blocks of code. The first will convert kilograms to pounds and ounces. The second will convert pounds to kilograms and ounces. The third will convert ounces to kilograms and pounds. The conversions are as follows: 1 kilogram = 35.274 ounces 1 kilogram = 2.20462 pounds 1 pound = 0.453592 kilograms 1 pound = 16 ounces 1 ounce = 0.0283 kilograms 1 ounce = 0.0625 pounds For the purposes of this activity the template for a function has been provided. You have not yet covered functions in the course, but they are a way of reusing code. Like a Python script, a function can have zero or more parameters. In the code window you…

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