Examlex
Relational integrity constraints enforce business rules vital to an organisation's success and often require more insight and knowledge than business-critical integrity constraints.
Input Scan
One of three parts of the PLC scan. During the input scan, input terminals are read and the input table is updated accordingly.
Stop Button
A control mechanism used to immediately halt operations or processes in a system or machinery.
PLC System
A system used in industrial automation to control machinery and processes, consisting of programmable logic controllers.
MCR Instruction
Stands for "Master Control Reset", an instruction in PLC programming used to turn off a defined range of outputs when certain conditions are met.
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