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 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: “Can’t Download to Faulted Controller” If you get the error “Can’t Download to Faulted Controller”, we need to clear the fault before downloading. First of all, be sure you want to download to the processor. When you download, the existing logic is replaced by the logic in your offline Read More »
Introduction to ControlLogix Communication Path Needed Error In this section, we’ll resolve the ControlLogix Communication Path Needed error in Studio / RSLogix 5000. Eventually, we all get this error at some point. The error is 701-8004280D. I will show you the method I use to resolve this error. The reason Read More »
Introduction to ControlLogix Bookmarks ControlLogix Bookmarks allow you to quickly navigate back to a location in logic. By comparison, in the older versions of RSLogix, you had to write down the ladder and rung. When tracing down bits, you need to easily navigate to sections of logic. Turn on the Read More »
Introduction to Determining ControlLogix Firmware Revisions There are several ways to go about Determining ControlLogix Firmware Revisions. One method is to use the Web Page served by the ENBT or EN2T. Another method is to go to the properties of the module in the RSWho Screen. Likewise, you can get Read More »
Introduction to the ControlLogix Sequencer Output (SQO) Basically, we use the ControlLogix Sequencer Output (SQO) instruction as a “Drum Switch”. That is to say, we have a file of bit patterns. Each time we trigger the sequencer output instruction, the next bit pattern will be dumped to the output. In Read More »
Introduction to sending Arduino Temperature to ControlLogix. In this section, we’ll send an Arduino Temperature to ControlLogix. Instead of an Arduino, you could also use the ESP8266. We’ll use the DHT22 sensor. Basically, we’ll just send this data over the serial port. Obviously, we need to also configure the ControlLogix Read More »
Introduction to Delaying an Output On and Off Today, we’ll discuss delaying an output on and off. In this case, I have a heater in the office, and a blower (fan). When the heater energizes, the blower (fan) will start after 2 minutes. This allows the heater time to warm Read More »
