: If the HMI displays "Communication Break," verify the wiring (RS232/RS485) and ensure the Station ID matches the PLC.
If you cannot find the PDF, install the McgsPro software. The manual is always installed locally at: C:\Program Files (x86)\McgsPro\Help\ Mcgs Hmi User Manual Pdf
Navigate to the section. You will typically find: : If the HMI displays "Communication Break," verify