| 摘要 |
A combined weighing system is provided in which control programs can be replaced over a communication medium such as the Internet. A weighing device including a plurality of weighing units is connected in communication with a controller for centralized control of the weighing units. The controller, which is connected with a communication device, comprises a CPU, a main memory, a flash memory, a display such as LCD, and a key input device such a s a keyboard. A control program can be replaced by connecting the communicatio n device to the Internet to download a new control program from a server computer to a temporary area of the flash memory. The downloaded program is transferred to the control program area of the main memory and executed by t he CPU.
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