LC switch output roughly divided into three types, relay output, transistor output type and triac output type. AC to DC relay outputs are transistor common with 5VDC and 24VDC output, SCR is relatively rare, and only special output models only. Considering the selection of the output module type.
2014年10月10日星期五
Plc high speed counting modules basics
Plc high speed counting modules: PLC English stands for Programmable Logic Controller, Chinese called the programmable logic controller programmable logic controller, is defined as: an electronic digital computing system operation, designed for use in industrial environments and design. It uses a programmable memory for storing its internal procedures, to perform logical, sequential control, timing, counting and arithmetic user-oriented operating instructions, and through digital or analog input / output control of all types of machinery or production processes. DCS Distributed Control System: DCS English name DISTRIBUTED CONTROL SYSTEM, Chinese called the Distributed Control System. DCS may be interpreted as the analog loop control more widely used in the industry, as the risk resulting from Plc analog input output module the decentralized control, and management of an automated high-tech products, and display the concentration. DCS generally consists of five parts: 1: Controller 2: I / O board 3: Operating Station 4: Communication Network 5: Graphics and pass away software.
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