Integrated SCADA Checkweigher System

The dynamic weighing is a constantly developing field of metrology. The electronic weighing module is vulnerable to many sources of environmental disturbances. Some issues connected with dynamic weighing and the necessity of implementation of signal processing methods are discussed. Implementation of this feature is impossible in majority of SCADA systems. The paper presents integration of three advanced software environments: MATLAB, LabVIEW and iFIX SCADA in prototype dynamic weighing system. They were used for advanced signal processing, data acquisition and visualization/process control. The integration of the three above mentioned environments is an attempt to create the industrial system with capabilities to deal with major dynamic weighing problems. It is innovative because it connects industrial SCADA, laboratory/industrial LabVIEW and MATLAB. Algorithms responsible for process control and data exchange are presented. The paper includes description of capabilities, performance tests, as well as benefits and drawbacks of the system.