Signal transmission system
专利汇可以提供Signal transmission system专利检索，专利查询，专利分析的服务。并且PURPOSE: To easly secure the safeness of a plant by allowing a field meter to transmit an abnormality informing signal in a frequency band different from the transmission frequency band of a preceding digital signal to a bus line at the time of generating abnormality in the device itself.
CONSTITUTION: When abnormality is generated in either one of field meters f
1 , f
2 , an abnormality informing signal having frequency in frequency band different from the frequency band of digital signals to be transmitted between both the field meters f
1 , f
2 by time division multiplex transmission is transmitted to a controller 13 through a field bus 11. The controller 13 receives the abnormality informing signal from the bus 11 and knows the generation of the abnormality in the field meter f
1 or f
2 . Consequently, the controller 13 can immediately detect abnormality independently of the scanning period of normal data collection and can easily secure the safeness of the plant.
COPYRIGHT: (C)1992,JPO&Japio，下面是Signal transmission system专利的具体信息内容。
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