A Programmable Logic Controller (PLC) is an industrial digital computer specialized for manufacturing processes, such as assembly lines, robotic devices, or any activity requiring high-reliability control. They were first developed in the automobile industry to provide flexible sequencing and process control. Early PLCs were expensive and difficult to program, but their use has spread because… Read More
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The XIC (Examine if Closed), a normally open switch or pushbutton, instruction is a fundamental instruction for working with Programmable Logic Controllers (PLCs). The XIC instruction performs the function opposite to the XIO (Examine if Open) instruction. When the input is closed, the output of the XIC will be ON. If the input is open,… Read More
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