P

Words starting with P.

• parallelContacts side by side on separate paths. Any one path that is true lets power flow, so it works like OR.
• Parse Decimal as DINTTurns text containing a whole decimal number into a DINT. If the text is not a valid number, such as 12a, it writes nothing and the destination keeps its last value.
• PLCA programmable logic controller: the computer that runs a machine. It reads inputs, runs its program and writes outputs, over and over.
• PLC simulatorSoftware that runs a PLC program on an ordinary computer with simulated inputs and outputs, so you can test logic without a controller.
• power flowThe way a rung is read: if the conditions on the left are all met, power flows through to the output on the right. No path, no power, no output.
• presetThe time or count a timer or counter is set to reach, also written PRE.