This scalable controller is affordable, priced at around $500, and offers a direct connection to the entire bus terminal I/O system of more than 180 terminal designs. The controllers come with an illuminated display with two 16-character lines, and a joystick switch for diagnostic information or user interaction. The PLC project can write to the BX9000's display and read inputs from the joystick. It has a program memory and data memory with 256 kbytes in each. It works with ModbusTCP, ADS/TCP, ADS/UDP, BootP, DHCP, SNTP and SMTP protocols. It also has a real-time clock for decentralized applications. It also has an RS232 and an RS232/RS485 serial interface for programming and serial device connection. The integrated Smart System Bus, a CANopen-based device, accommodates displays, modems, drives or other peripherals. It uses TwinCAT automation software for parameterization and programming according to the IEC 61131-3 standard.
The promise of the Internet of Things (IoT) is that devices, gadgets, and appliances we use every day will be able to communicate with one another. This potential is not limited to household items or smartphones, but also things we find in our yard and garden, as evidenced by a recent challenge from the element14 design community.
If you didn't realize that PowerPoint presentations are inherently hilarious, you have to see Don McMillan take one apart. McMillan -- aka the Technically Funny Comic -- worked for 10 years as an engineer before he switched to stand-up comedy.
The first Tacoma Narrows Bridge was a Washington State suspension bridge that opened in 1940 and spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7, just four months after it opened.
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