Introduction to ControlLogix Modbus In this document, we will walk through ControlLogix Modbus examples using the 1756-MVI56E module. The MVI56E-MCM modules allows connections between the Modbus network, and a ControlLogix processor. Before using the MVI module, we will need to set up the configuration such as the IP address for Read More »
Introduction to ControlLogix Trapping ControlLogix trapping is important for locating fast moving bits, or infrequent bits. An example would include equipment guard doors. Periodically, a guard door might loose connection, and shut down your equipment. Intermittent problems are very difficult to locate. Since the condition existed for only a fraction Read More »
Introduction to Alexa voice commands to PLC In this post, we will discuss how to send Alexa voice commands to a PLC. This is a simple process, but requires several steps. I’m simply doing an experiment to allow an Alexa voice commands to turn on various inputs on a PLC Read More »
Introduction to SLC to ControlLogix Messaging SLC to ControlLogix Messaging might be easier than you think. For example, the SLC 5/05 will take 5 integers from the N10 data file, and send those 10 integers to the Allen Bradley ControlLogix processor. The ControlLogix does not have the same addressing structure Read More »
Introduction to Creating a New Motion Project In this post, we will talk about creating a new motion project in Studio 5000. We will use an emulator processor to build virtual axis in the next series of posts. With Studio 5000, we will build this project based on the Allen Read More »
Introduction to the Studio 5000 Project Compare Utility The Studio 5000 Project Compare Utility is used to locate the differences between two Studio 5000 files. This is useful to ensure a file on the hard drive has the same logic as the project in the processor. We also use the utility Read More »
Introduction to Troubleshooting a ControlLogix Output The most common problems on a system using ControlLogix are usually field devices. Occasionally an I/O module can fail. Most of the time, however we are using RSLogix/Studio 5000 to find a failed field device. In this document, we will be troubleshooting a ControlLogix Read More »
Introduction to Marsenne Primes Prime numbers are numbers that are only divisible by 1, and themselves of course. Prime numbers (perfect numbers) are important for encryption, and very interesting to math enthusiasts who love to study their patterns. Obviously, with large numbers, prime numbers become more rare. An understanding Read More »
Introduction to Resetting Fuses The 1756-OB16E module is an electronically fused output module. For this reason, we must know the procedure for resetting fuses in the even that an overload condition takes place. In summary, he 1756-OB16E has two electronic fuses. The first fuse protects outputs 0 to 7. Read More »
Introduction to Restart Lockout logic Whenever we have a a large motor, a lot of current is required to start the motor. When the motor is pulling a large amount of current, heat is building up in the wingdings of the motor. Hence, we do not want to allow Read More »
