galluccinator Posted June 16, 2014 Report Share Posted June 16, 2014 Hello, I am new to ladder logic and the Unitronics system, and I had two questions: 1) Is there any way to simulate a project WITHOUT connecting the PLC controller to it? I want to see how some of the example projects run but I don't have the actual console yet. 2) How would I make the program wait for a specific condition to be met before moving on with the code? For example, I want to open a valve, and then once the pressure goes down to a certain level, shut off the valve. However, if I use a positive contact saying "If pressure is <= x" and then write a coil that shuts the valve, won't the program just skip the rung (because in the beginning it would just evaluate as false) and end the program without waiting for the condition to be fulfilled? Thank you in advance! Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.