The characteristics of built-in type PLC and structure

Built-in PLC in CNC equipment, PLC controller and CNC device between the signals within the CNC device can be realized. Between PLC and CNC machine tools by CNC signals (input/output interface circuit implementation As shown in figure 1) 。 Built-in type PLC has the following characteristics ( 1) Built-in type of PLC is actually a CNC device with PLC functions. Generally as the basic function of the CNC device provided to the user. ( 2) Built-in type PLC system hardware and software of the whole structure is compact, and the PLC has pointed, the function of the technical indicators are reasonable and practical, and is especially suitable for single machine numerical control equipment. ( 3) Built-in type PLC and CNC Shared CPU, a CPU can also be used independently; The hardware control circuit with other circuit of CNC equipment can be produced in the same piece of printed circuit boards, can also be made a separate additional circuit boards; Built-in type PLC is generally not individually configurable input/output interface circuit, but the use of CNC system itself input/output circuit; PLC controller used in the power supply provided by the CNC device, do not need other power supply. The CNC system diagram of figure 1 built-in type PLC ( 4) Structure of the built-in type PLC, CNC system can have some of the advanced control function. Such as ladder diagram editor and transfer function, directly within the CNC processing of large amounts of information, etc. World famous manufacturer of CNC system in the production of CNC products, largely develop the function of built-in type PLC.
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