Introduction to ControlLogix/NodeRed Data Log To set up the ControlLogix/NodeRed Data Log, you must first install Node-Red. Node Red is a free, open source service that allows you to integrate connections from different types of automation devices. There are many documented procedures and youtube videos on this. Node Red is Read More »
Introduction to Node-Red with ControlLogix In this section, I’ll discuss setting up Node-Red with ControlLogix. Basically, we just need to install the Eth-IP node in Node-Red (for CIP). After that, we just configure the IP address of the Ethernet Module, the slot the processor is in, then declare the tags Read More »
Introduction to Arduino with Allen-Bradley DF1 The purpose of this post is to document my progress on using Arduino with Allen-Bradley DF1 protocol. Particularly, for this experiment, I am using an Arduino MEGA with the MAX232 module. The mega has 3 UART ports. Also, I’m using the SLC 5/04 processor. Read More »
Introduction to Common Logic Gates We use common logic gates to display the flow of a process. These gates include AND, OR, NOT, NAND, NOR, XOR, and XNOR. These logic gates convert a process into plain English in a way that anyone can understand how they work. By the same Read More »
Introduction to Arranging FactoryTalk View Objects One of the keys to keeping your project looking nice is properly Arranging FactoryTalk View Objects. You want to align and space your object evenly. At the same time, proper grouping helps you move and duplicate objects for similar parts of your system. Aligning Read More »
Introduction to the 74CH93 Binary Counter The 74CH93 Binary Counter has several uses. In the first place, you might use the counter as a divider. In this case, you can divide counts by 2, 4 or 8 for use with lower frequency devices. Additionally, you can use it to provide Read More »
Introduction to Optocouplers and Optoisolators Basically, we use optocouplers and optoisolators to minimize interference in our control circuit. We separate the load side of the circuit from the control side. In other words, we don’t need to worry about noise from the load interfering with the control circuit. Additionally, this Read More »
Introduction to the 74HC595 Shift Register The 74HC595 Shift Register allows you to control field devices based on serial input data. Although we typically use the 74HC595 Shift Register with a microcontroller, we will not do that in this post. The purpose of this post is to simply understand the Read More »
Introduction to the Arduino Bar Graph Example You will usually find the Arduino Bar Graph Example on a default install of the Arduino IDE. Basically, the bar graph shows a graphic indication of an analog level. For instance, you might display a tank level, pressure, or motor speed. In essence, Read More »
Introduction to the 4017 Decade Counter We use the 4017 Decade Counter to count transitions. More specifically, we count false to true transitions. The 4017 Decade Counter has 10 outputs (0 to 9) in addition to the carry output. The 4017 outputs do not count in binary. It simply turns Read More »
