【正文】 or the assembly examination ponents examination, like on test circuit board ponent position is whether correct, the recognition optics character (OCR) inspects the date bar code or carries on the classification to the product, as well as carries on the optical measurement to discover the product the slight defect or carries on the classification to the product according to the quality rank. At present many factories use independent intelligent, it must carry on the correspondence with the production processing controller. The NI PAC introduction has logical and the movement control vision perhaps the high speed survey function, thus causes engineers not to need to integrate other hardware and the software platform. PAC has avoided regarding the special hardware need PAC is representing the programmable controller newest technology, it future will develop the key will be decided in inserts the type technology the introduction. For instance must be able to define the hardware through the software. The electronic merchant often uses the chip which the scene programmable gate array (FPGA) such electronic device develops has custommade, it may let the new equipment intellectualization. These equipment contain have can carry out the many kinds of functions to be possible to dispose the logical block, connects these function blocks programmable junction association as well as for chip input output data I/O. Through defines these to be possible to dispose the logical block the function, its each other connection as well as corresponding I/O, the electron designs the chip which the personnel namely may develop has custommade, but does not need to spend produces special ASIC. FPGA is similar to has a puter, its internal circuit can reconnect moves the specific application procedure. Before only then these familiar first floors programming language like VHDL hardware designs the personnel to be able to use the FPGA technology. However, engineers have now been possible to use the control algorithm which LabVIEW FPGA develops has custommade and it to download to the FPGA chip on. May cause the hardware through this characteristic engineers to have the realtime function, like the limit and approaches the sensor examination and the sensor condition monitoring. Because the control code moves directly on the chip, therefore engineers can fast develop the correspondence agreement or the high speed circulation procedure which uses has custommade: The numerical control circulating rate may reach as high as 1 MHz, the simulation control circulation speed may be 200kHz. LabVIEW uses in the automated control As a result of LabVIEW () has the formidable function and the programming usability, extremely suitablly has the following request based on LabVIEW PAC the application: Because LabVIEW programs the inborn introduction graphical user interface, you may provide the manmachine contact surface for the control system. Survey (high speed data gathering, vision and movement). NI is including visual gathering high speed I/The O aspect has the longterm experience, therefore you may use function and so on vibration or machine vision in yours standard control system. Handling ability: In certain applications, you need to have the special control algorithm, the senior signal processing or the data record. Uses LabVIEW, you may use the control code which NI or the third party tool establishes has custommade, the realization like JTFA signal processing, or local and longdistance data recording. Platform: Using LabVIEW, you can develop use in each kind of platform code, these platforms include PC, inserts the type controller, the FPGA chip or handhold PDA. Correspondence: Using the LabVIEW database connection, OPC and based on the work browser operation contact surface, you can very easily the data transfer to the enterprise database in. The system of NI PAC The NI provides 5 kinds according to the LabVIEW PAC terrace. The PXI is draw up by several manufacturers of standardize PAC hardware terrace according to the industry of the CompactPCI structure, it can provide a mold piece turn, tightly packed but fastness of industrialization up the GHz high performance processor inside the builtin controller of PXI can choose to use to e from NI or the third square the manufacturer39。 Downloading more PAC technical paper and video frequency course Has produced along with many merchants can unify the PC function and the PLC reliable programmable automation controller (PAC), at present the control system gradually started to use PAC. This white paper introduced PAC the origin as well as it with PLC and the PC difference, and had pointed out will use PAC the industry to control the future development direction. Table of contents PAC will bee the future the industry control mode 8020 principle Constructs a better controller Two kind of different softwares solution PAC vision and survey application PAC has avoided to the special hardware need LabVIEW uses in the automated control NI PAC system PAC will bee the future the industry control mode with pares based on the PC control system, related PLC (programmable logical controller) the superiority and the inferiority intense argument has already continued for ten years. Because PC and PLC are more and more small in the technical difference, and has used the mercialization along with PLC (COTS) the hardware as well as PC can use the realtime operating system, thus appeared one kind of new form controller PAC. The PAC concept is (ARC) proposes by the automation development facility, it expressed the programmable automated controller, used in describing unified PLC and the PC functio