plc

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plc

abbreviation for Public Limited Company. See PUBLIC COMPANY.
References in periodicals archive ?
Red Lion says Crimson Control enables customers to use IEC 61131 programming languages--such as Ladder Logic, Function Block, Structured Text and Instruction List to solve specific application needs by developing logic control much like a Programmable Logic Controller (PLC) or Remote Telemetry Unit (RTU) without the added expense.
The module binary inputs, 32 HF inputs (24V DC), delay 0.05-20MS; (Input type 3 according to IEC 61131); diagnostics, process alarms; required terminal block - 36 pcs.
Meeting IEC 61131 specifications, the company employs processors whose chipsets do the code solving and can add 10 modules whenever they are needed at the location.
IEC 61131 is a worldwide standard approved by International electrotechnical commission characterizing (IEC) all about Programmable logic controllers (PLCs).