SIA OpenIR  > 自动化系统研究室
Alternative TitleField bus interface device
纪洋; 曹云侠; 马钺
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司
Other AbstractThe present utility model discloses a field bus interface device. The field bus interface device comprises a microprocessor, a can bus controller, a can bus transreceiver, a 232 signal transreceiver, a watchdog, and a first and second optical coupler isolator, wherein the microprocessor is connected to the 232 signal transreceiver at its input end for receiving signals from an industrial computer or peripheral equipments and is connected to the first and the second optical coupler isolator through the can bus controller at its output the watchdog is provided on the reset end of the microprocessor the first and second optical coupler isolators are connected with the can bus transreceiver at their outputs for communicating with the industrial computer or the peripheral equipments through the can bus. With this utility model, the industrial computer can be used for controlling and monitoring the peripheral equipments. Since the can protocol is used for encoding communication data block as substitute of conventional address encoding, the number of nodes on bus of the utility model is not limited theoretically. The device has advantages of simple structure, convenient maintenance and reliable operation.
PCT Attributes
Application Date2005-12-14
Date Available2007-01-03
Application NumberCN200520094739.X
Open (Notice) NumberCN2854660Y
Contribution Rank1
Document Type专利
Recommended Citation
GB/T 7714
纪洋,曹云侠,马钺. 一种现场总线接口装置[P]. 2007-01-03.
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