Multi-unit combined controller
An embedded controller and combined technology, applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problems of low data processing efficiency and limited expansion, so as to improve data collection efficiency and processing Good results in speed and scalability
Active Publication Date: 2013-08-07
CHONGQING SHENGXUE TECH CO LTD
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is that, in view of the existing PLC controller adopting the method of scanning program statements one by one to collect and process data, there are problems of low data processing efficiency and limited expansion. The present invention provides an expansion unit that can Multi-unit combined controller that processes data independently
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[0020] The present invention will be described in further detail below in conjunction with specific embodiments.
[0021] Such as figure 1 As shown, the multi-unit combined controller of the present invention includes a main control module, the main controller is the same as the PLC controller, and adopts an independent power supply (including a primary power supply and a secondary power supply), and the main control module is embedded by RAM7 The embedded controller of RAM7 communicates with the PC through the communication circuit (using RS485 / RS232 communication), and the embedded controller of RAM7 also communicates with the PC through the SPI serial bus interface (cascaded serial bus interface). It is connected with the 8-isolated input / 8-isolated output module, 16-isolated input module, 16-isolated output module, 8-channel analog signal input module, 8-channel temperature signal input module and 4-channel analog signal output module of the expansion module. The main cont...
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A multi-unit combined controller comprises a main control module, which is provided with a general serial asynchronous interface communicated with a computer, and connected to an expansion module through a bidirectional high speed SPI serial bus. The expansion module comprises a 8-isolated input / 8-isolated output module, a 16-isolated input / 16-isolated output module, a 8-channel analog signal input module, a 8-channel temperature signal input module and a 4-channel analog signal output module, which are each provided with an independent data processing chip and an independent power managementchip, and each module processes inputted data independently, and feeds the result back to the main control module. According to the utility module, each module in the expansion module processes inputted data independently by combining with a control instruction sent by a main controller, and feeds the result to back the main control module for centralized coordination and processing, thus lessening the burden of the main controller, improving the data processing efficiency and having excellent realtime for data processing.
Description
technical field [0001] The invention relates to a controller, in particular to a multi-unit combined controller in which each module of an expansion unit can process data independently. Background technique [0002] At present, due to the good performance and strong anti-interference ability of PLC controllers, PLC controllers are widely used in industrial control fields such as steel, petroleum, chemical industry, and electric power. The main control module of the PLC controller has data processing functions such as mathematical operations, data transmission, and data conversion, and can complete data collection, analysis, and processing. The existing PLC controller is the CPU (8-bit or 16-bit) in the main control module, which receives and accesses user programs and data according to the functions given by the PLC system program, and batches on-site I / O (AI / AQ) Data, and store the data in the register, process the instructions and data one by one by scanning, and store th...
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IPC IPC(8): G05B19/05
Inventor 王盛学付英述陈竹
Owner CHONGQING SHENGXUE TECH CO LTD