发明名称 |
FIELD INSTRUMENTATION SYSTEM |
摘要 |
This invention relates to optical multiplex transmission type field instrumentation systems, in which data from a plurality of field devices installed on the side of a field are transmitted in a multiplex mode through optical fiber transmission paths and an optical distributor to a master processor on the side of a panel. For the purpose of forming a field instrumentation system which is greatly rationalized and improved in reliability a N : N optical distributor is provided which branches and couples in the rate of N : N the optical transmission paths, the field controllers and the output signals of the measuring units are applied through the N : N optical distributor to the field controllers thus forming a control loop for the field controllers in the field. |
申请公布号 |
JPS5990197(A) |
申请公布日期 |
1984.05.24 |
申请号 |
JP19820199556 |
申请日期 |
1982.11.12 |
申请人 |
FUJI DENKI SEIZO KK |
发明人 |
YASUHARA TAKESHI;NABETA EIICHI |
分类号 |
H04B10/29;G08C15/06;G08C23/04;G08C23/06;H04B10/032;H04B10/07;H04B10/2507;H04B10/27 |
主分类号 |
H04B10/29 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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