工控编程语言IEC61131-3在数据采集传输仪中的应用

摘要

With the application and popularization of the data collection and transmission instrument, the single function of data collection and transmission instrument cannot meet the demand of practical application, the local program control and logic function can greatly increase the instrument application flexibility and function. This article add iec61131-3 programming function on the basis of the existing transmission acquisition instrument which has functions of analog signals acquisition, on-off state real-time read and control.This design makes traditional data acquisition transmission instrument has a flexible control input and output control functions, enhanced the practicality of the instrument without increasing the hardware cost.%在现有数据采集传输仪的基础上增加IEC61131-3编程功能，可以对模拟信号和开关量状态实时进行采集判断，并可以控制开关量输出，使传统数据采集传输仪具有灵活的输入控制和输出控制功能，在不增加硬件成本的基础上增强了数据采集传输仪的实用性。