ACC Automation: PLC & Industrial Control Learning
Practical Tips and Techniques
The Productivity Suite Software allows us to modify our existing program and execute the new code without stopping the PLC scan. This is referred to as online editing. We change the ladder logic code, and when we save it to the P1-M622-16DR PLC, the current PLC scan is held until the new code is written … Read more
We will now look at wiring and testing our first ladder logic program with the P1-M622-16DR Mini PLC. Having created our start-stop motor circuit and learned about the monitoring tools in the Productivity Suite Software, it’s time to connect real-world devices and see our program in action. We will wire a start pushbutton, a stop … Read more
We will now look at monitoring and testing our Productivity Mini PLC program. The Productivity Suite Software provides powerful tools for us to monitor and test our programs. Last time, we created our first program—a simple start-stop motor circuit—and transferred it to our connected P1-M622-16DR Mini PLC. We will monitor our ladder using the ladder … Read more
We will now create our first program on the Productivity Mini PLC P1-M622-16DR. Last time we connected the Mini PLC with our computer running the Productivity Suite Software. An Ethernet (RJ45) connection was established to our programmable logic controller. We will now create our first program for our Productivity Mini PLC. Our program will be … Read more
We will now look at communication between the Productivity 2000 PLC (Modbus TCP Server) and Node-RED (Modbus TCP Client). Node-RED is a powerful, adaptable HMI/SCADA (Supervisory Control and Data Acquisition) development package that uses flow programming. Minimal coding is required; you can see the program flow visually. The best thing is that the software is … Read more
The Productivity 2000 series of PLCs has five built-in communication ports for easy connectivity to your PC or various industrial networks. Ethernet protocols like Modbus TCP can be utilized with the RJ45 port on this PLC. Modbus TCP is an open (published) protocol that uses the Server (Master) / Client (Slave) architecture. It’s a very … Read more
The Productivity 2000 series of PLCs has five built-in communication ports for easy connectivity to your PC or various industrial networks. Serial protocols like Modbus RTU can be utilized with the RS232 or RS485 ports on this PLC. Modbus RTU (Serial) is an open (published) protocol that uses the Master / Slave architecture. It’s a … Read more
The productivity series of PLCs has a built-in web server. This web server function can make a non-secure (HTTP) connection to the CPU. This is done with your browser. You can view read-only system tags and open, save, or delete files stored on the micro SD drive. Previously we stored data-logged files on the USB … Read more
The productivity series of PLCs has a built-in data logger. This accessible data logger will log up to 64 tag values on a USB (Micro SD) storage device connected to the CPU. The logs will be stored in CSV (Comma Separated Values) file format. Logging can be triggered by the rising edge transition of a … Read more
The PLC productivity series includes a Drum and Sequencer instruction that can be very useful. The Drum instructions function similarly to an electromagnetically-operated drum sequencer. To better understand this concept, consider the mechanics of a music box. A small drum with pegs catches and flicks the chimes in a specific sequence to produce a tune. … Read more