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You're reading from  Mastering PLC Programming

Product typeBook
Published inMar 2023
PublisherPackt
ISBN-139781804612880
Edition1st Edition
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Author (1)
Mason White
Mason White
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Mason White

M.T. White has been programming since the age of 12. His fascination with robotics flourished when he was a child programming microcontrollers such as Arduinos. M.T. currently holds an undergraduate degree in mathematics, a master's degree in soft ware engineering, and is currently working on an MBA in IT project management. M.T. is currently working as a soft ware developer for a major US defense contractor and is an adjunct CIS instructor at ECPI University. His background mostly stems from the automation industry where he programmed PLCs and HMIs for many different types of applications. M.T. has programmed many different brands of PLCs over the years and has developed HMIs using many different tools.
Read more about Mason White

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Final project – creating a simulated assembly line

Our final project will consist of a production line. The line will consist of a function block for a facade and another function block that will have the following methods:

  • Turn on the motors
  • Home the motors
  • Start the motors

The first thing that we will want to do is create the mentioned methods with an access specifier of Public and a return type of BOOL. Once that is done, create a GVL called outputs and set the following variables:

{attribute 'qualified_only'}
VAR_GLOBAL
     motorState  : WSTRING;
     startMotors : BOOL;
     MotorsOn    : BOOL;
END_VAR

The HomeMotor method will consist of the following:

outputs.motorState := "motors homed";

The StartMotors method will consist of the following:

outputs.startMotors := TRUE;

Finally, the TurnMotorsOn method will...

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Mastering PLC Programming
Published in: Mar 2023Publisher: PacktISBN-13: 9781804612880

Author (1)

author image
Mason White

M.T. White has been programming since the age of 12. His fascination with robotics flourished when he was a child programming microcontrollers such as Arduinos. M.T. currently holds an undergraduate degree in mathematics, a master's degree in soft ware engineering, and is currently working on an MBA in IT project management. M.T. is currently working as a soft ware developer for a major US defense contractor and is an adjunct CIS instructor at ECPI University. His background mostly stems from the automation industry where he programmed PLCs and HMIs for many different types of applications. M.T. has programmed many different brands of PLCs over the years and has developed HMIs using many different tools.
Read more about Mason White