GE / IP FANUC Series 90/30 In Stock

World's Largest Warehouse

of GE 90-30, Genius, and RX7i

Mon-Fri 8AM-5PM EST

Archive for the ‘Education’ Category

Analog PLCs: Voltage vs Current

            Programable logic controllers (PLC) are devices known to be completely digital, and, usually, digital devices are very easy to understand in the electrical side of things, they work with binary language, 1 and 0, true and false, reference voltage and ground, and this is true even today. But then, how do they have the […]

Read More

What is a Real Time Clock (RTC) in a PLC?

Real-time clocks (RTC) are not clocks like the one on your nightstand that automatically changes time as the season changes from standard time to daylight savings. Those work with a radio receiver inside the casing tuned to the national time observatory that measures light frequency from a very stable and accurate source to keep us […]

Read More

What is a Thermocouple? -And what is it used for?

The evolution of technology mainly depends on the automation of tasks and reliability. One of the main components for automation is the sensor to collect information and take action accordingly. A sensor is a physical component that measures physical input from its surrounding environment and translates it into data that can be understood by either […]

Read More

What is IoT?

A Brief Look at Current IoT & What We Can Expect to See in the Future   It is a phrase we’ve all heard once or twice but that maybe only a handful of us fully understand. The Internet of Things (IoT) is mentioned in a vast, ever-growing conversation about technology, policy, and improving how […]

Read More

FIRST: How the Inventor of the Segway Found a Way to Create Engineers Using Robots

You’re probably familiar with the Segway, but do you know who invented it?  Or how about clean water? No, I’m not asking if you know who invented clean water. I am asking if you know who invented the water filtration system which allows you to drink that clean water? Let me ask some different questions. […]

Read More

« Previous Page

PDF Supply sells used surplus products. PDF Supply is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PDF Supply come with PDF Supply’s 1-year, 2-year, or 3-year warranty and do not come with the original manufacturer’s warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

Rockwell Disclaimer: The product is used surplus. PDF Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because PDF Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, PDF Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. PDF Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. PDF Supply also makes no representations as to your right to install any such firmware on the product. PDF Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.