Equipment name: automatic dispensing equipment

Device failure: program loss

Failure analysis: the customer said that the equipment in the morning to work when there is no fault, to the scene after the inspection found that the normal operation of PLC, stepper motor and drive power are normal. After excluding peripheral faults, the main PLC were examined. In touch screen input a manual instruction PLC also no response. Connect the PLC and the computer to the program inspection found that the program is empty, according to customer requirements to re program PLC. After a day of debugging to return to normal.

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