Emerson Exchange 365

To debug on your development computer, you will be pleased to know that Emerson will soon be releasing the PAC Machine Edition Simulator that will provide the capabilities that you are looking for.

To debug inside the controller, you can use a "divide and conquer" approach. This involves dividing a large application into smaller ones and testing and proving each section individually. One solution is to use the END function to end execution of the logic at the programmed point (execution of the remaining logic will not take place and the program scan will re-start at the beginning of the _MAIN program). You can program an END function at the beginning of the application and then move it towards the end of the application as you prove each section of the logic. You could also consider a jump to label to pass over sections of logic that you do not want to execute. Subroutines can be tested independently in a test application and then enabled in the main application once proven. During development, you can also use SETCOIL and MOVE functions to store interim values into a data table area where you can monitor them to ensure the status or output of the application is correct.