#ALLEN BRADLEY LADDER LOGIC PROGRAM HOW TO#
#ALLEN BRADLEY LADDER LOGIC PROGRAM SIMULATOR#

And the equation to do that is you take the analog input divided by the max amount of gallons in the tank and then you multiply that times 100 to give you a percentage. So like I said, we're going to convert gallons to percentage. Now let's go to our default program here. You can see the description there, there's a basic configuration. So what I've done is I've added an analog 2080 IF4 analog input module. Okay, so here we have our controller hardware layout and as you can see there are these areas on the controller where you can plug in modules and you can see it highlights these plugin module areas here. We have a couple other videos, one where we introduced CCW and another where we introduced the simulator, both of which we're going to be using. We have a Micro850 SIM.ДЄnd just quick side note, if you're totally new to CCW, I recommend you check out one of our other videos. So first let's start with our controller. So please make use of that and we're going to jump right in here. The beautiful thing about videos is you can speed them up or slow them down on YouTube. So I'm not going to take much time to explain each thing. And we are going to run through this pretty quickly.

#ALLEN BRADLEY LADDER LOGIC PROGRAM SIMULATOR#

We're going to convert an analog input signal from gallons to percentage and we're going to use the simulator to test it. What we are going to do in this video is convert a analog input signal-letвЂ™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.ДЄnd 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 youвЂ™re new to CCW then you'll want to check out our other videos on Connected Components Workbench) Connected Components Workbench - Math Instructions

#ALLEN BRADLEY LADDER LOGIC PROGRAM HOW TO#

Now watch theВ 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.ДЄnalog_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 itвЂ™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.ДЇor example, letвЂ™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