Function unit, analog input unit, and programmable controller system

Abstract

The purpose of the present invention is to make it possible to control different functions in a single function unit in a programmable controller system using a plurality of control units. The function unit is provided with a parameter reception unit for classifying a parameter into a first parameter and a second parameter, a first parameter analysis unit for analyzing the classified first parameter, a second parameter analysis unit for analyzing the classified second parameter, a first parameter storage unit for storing the first parameter that was analyzed in the first parameter analysis unit; a second parameter storage unit for storing the second parameter that was analyzed in the second parameter analysis unit, a first processing unit for executing control for a first function on the basis of the first parameter stored in the first parameter storage unit, and a second processing unit for executing control for a second function on the basis of the second parameter stored in the second parameter storage unit. The function unit is controlled by a plurality of controllers.

Description

technical field [0001] The invention relates to a functional unit, an analog input unit and a programmable controller system. Background technique [0002] When importing analog signals such as current values ​​and voltage values ​​output from various sensors to a programmable logic controller (PLC), use an analog input unit that converts input analog data values ​​into digital values, that is, A / D conversion unit. Furthermore, the CPU unit of the PLC executes various controls based on input values ​​converted into digital values. [0003] On the other hand, the digital value obtained by performing A / D conversion by the analog input unit is not only used as input information for the control process performed by the CPU unit, but also used as data for the purpose of traceability of quality information. Collection, the so-called recording (logging). [0004] As for the technology related to the recording of the analog input unit, for example, Patent Document 1 shows an anal...

AI Technical Summary

Problems solved by technology

However, when the CPU unit manages and controls a plurality of analog input units and performs multi-channel recording, there is a problem that the data collection process may not be completed in time, and the control period of the control that should be performed may be delayed. influences

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