This is a common occurrence in industrial manufacturing and process plants. “The motor does not turn on when the button on the HMI is pressed.” This article will discuss how to use cross-referencing in Siemens TIA Portal to solve a common industrial controls problem. A lot of cross-referencing is done inside the PLC and HMI programs to find why certain functions are not executing when the input signal is sent. A key tool in your troubleshooting arsenal is “Cross Referencing”.Ĭross referencing is the act of finding where a variable in the system is actively used in order to find the root-cause of an anomaly in the system. As Industrial Automation and Controls professionals, a majority of our time is spent on troubleshooting or debugging code other people wrote, with little documentation to reference.
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