AUTOMATIC MONITORING CIRCUIT FOR ELECTRIC DEVICE, PARTICULARLY SF6 TYPE HIGH VOLTAGE BREAKER

摘要

PROBLEM TO BE SOLVED: To change the action limit of a system by a local PC, by interchanging a message corresponding to the answer from a station referred and received by a terminal in a given memory zone. SOLUTION: When the change of parameter is allowed, a user writes a new parameter in the word data BAL2 of a PC, and therefrom a word processing requirement BAL1 is revised. The words BAL1 and 2 in a zone '0' are sent to a station by aperiodic data via a local network under the management of a management program GR of the local network. The station detects a writing requirement by the respective values '1' and '0' of the first bits D6 and D7 of a first word, and then the writing requirement is coded by only one station corresponding to the wiring requirement. A station, recognized by this address, writes new parameter, reads in the BAL2, into a page and an indicated index.