The convergence between programmable logic controllers (PLCs) and remote terminal units (RTUs) is relatively new. In terms of the installed base, PLCs have long overtaken RTUs and have been dominating the market for decades, practically becoming commodities. Driven by this growth, many vendors ...
The difference between power and ground switching lies in the location of the control devices, either closer to power, or to ground, respectively. Power switching will more likely result in the tripping of abreaker or fused device. Ground switching will more likely result in a latching of the ...
This documents goal is to overview the differences between ASME Y14.5-2009 and ISO 1101 Geometric Dimensioning and Tolerancing (GD&T) standards. The author makes no claim as to which standard may or may not be better or is preferred. Many of the differences are minor however many are not....
up to 200 mbar when changing the location (e.g. from sea level to 2,000 m) Depending on the measuring range, these errors can be substantial (e.g. in pneumatics at a measuring range of 1 bar) or negligible (in hydraulics at 400 bar). Note If you are uncertain whether your measurin...