SYSTEM AND METHOD OF SYNCHRONIZING TIME BETWEEN MULTIPLE SYSTEMS

摘要

Systems and methods for synchronizing time between multiple systems on a mining machine. The system includes a programmable logic controller (PLC) for controlling the mining machine and for transmitting a time to synchronize computer subsystems on the machine. The PLC includes a system clock that is programmed to operate on local time. A battery pack is connected to the PLC to allow the system clock to function continuously, even when the machine is turned off. Computer subsystems request and receive time updates from the PLC. A local time on each computer subsystem is determined based on the time update received from the PLC. Each computer subsystem includes a time zone parameter set to Coordinated Universal Time (UTC) and a Daylight Saving Time (DST) parameter that is disabled. Accordingly, the local time on each computer subsystem is set to the time update value received from the PLC.

主权项

1. An industrial machine comprising:
a programmable logic controller (PLC) including a PLC system clock having a local time, the local time being a time of an area in which the industrial machine is located, the area being outside of the Coordinated Universal Time (UTC) time zone, the PLC operable to
control an industrial function of the industrial machine, andtransmit the local time masked as a UTC time value; and a computer subsystem having a local time clock with a configurable time zone parameter that is set to the UTC time zone and a Daylight Saving Time (DST) parameter that is disabled, the computer subsystem receiving the local time transmitted by the PLC and the local time clock being set to the received local time from the PLC.