What we are going to do in this video is convert a analog input signal-let’s delete all of this, so we can start from scratch.

As this is loading, let me set the stage for you.

I'm opening up a project here that I started and we are going to walk through, some basic logic. So this video is another one on Connected Components Workbench, otherwise known as CCW.Īnd what we're going to look at specifically is using math instructions and ladder logic within CCW. Hey guys, Stephen Gates here with and I've got another video for you to help you become a confident PLC programmer and a confident automation professional. (Now before we get started, I should tell you that if you’re new to CCW then you'll want to check out our other videos on Connected Components Workbench) Connected Components Workbench - Math Instructions Now watch the walk-through video on how to set up that math inside CCW using math ladder logic instructions. In other words, scale the value again to convert from gallons to percentage.Īnalog_Input (in gallos)/4000 x 100 = Tank Level Percentage So we could do a simple calculation to convert the 0-4000 gallon value into 0-100%

But, sometimes you just want to work with simple percentages. So if it’s a 4,000 gallon capacity tank with a 4-20mA sensor, the analog input may already be scaled such that the PLC analog input tag sees the 4-20mA value in terms of 0-4000 gallons, which is good. In many cases, the analog input for a tank level sensor might be scaled such that it shows the gallons of the tank. Specifically, we are going to take a look at using math instructions in Ladder Logic to do calculations within CCW.įor example, let’s say we wanted to track the liquid level in a tank as a percentage. If you are new to Connected Components Workbench, I'd encourage you to check out the intro to CCW post here. This post is all about using Ladder Logic for programming in Connected Components Workbench.

Allen bradley ladder logic program