| 摘要 |
An operator interface unit for monitoring and controlling controllers coupled to communications network has a common database that is accessible across the network, regardless of each controllers data structure . The operator interface unit provides an apparatus for displaying, storing, a nd editing data obtained from the network. Data from each controller can be accessed by the unit based upon the individual controller's data structure and type through embedded objects resident in the inteface unit's operating system and program. The data can then be displayed, edited, and stored by any data entry device that is capable of executing the operator interface units program.
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