“RUN/STOP is solid orange. Not green. Not red. Orange.”
“Okay, Carl,” she said, clicking into the Project tree . “Walk me to the cabinet. What do the diagnostics LEDs on the PLC say?”
She set an alarm for 6:00 AM. The morning shift would never know how close they came to disaster. plc and hmi development with siemens tia portal read online
Lost connection to 'Filler_DB'.
She didn’t fix it with a hammer. She fixed it with precision. “RUN/STOP is solid orange
Second, she opened the HMI script. She wrapped Line 47 in a conditional block:
At 12:34 AM, the HMI rebooted.
The screen mirrored what Carl was seeing: frozen. A blank gray void where the main fill screen should be. But the HMI’s own diagnostics told a different story. The tag connection status was flashing red for the PLC data block that handled the filler’s sequence.