发明名称 |
PROCESSTYRINGSSYSTEM |
摘要 |
<p>A housing (11) which is intended for mounting on a process control valve (5) contains electric circuits (3) and means (4) controlled by these circuits for converting electric control signals into operating signals which operate the valve via a cylinder. The electric control signals are supplied via a serializing terminal (7) from the computer (1) of a process control system which includes a plurality of process control valves (5). The housing has a single interconnection (14) with a cable (8) common to several process control valves for transmitting the control signals and for supplying the electric circuits with power. The housing moreover has a single connecting socket (13) to permit coupling the housing to a pressure air line common to a plurality of valves (5).</p> |
申请公布号 |
DK153346(C) |
申请公布日期 |
1988.12.19 |
申请号 |
DK19780004613 |
申请日期 |
1978.10.16 |
申请人 |
ALFA-LAVAL AB |
发明人 |
SJOEHOLM, CLAES;JOHANSSON, BENGT |
分类号 |
G05B19/02;G05B15/02;H04Q9/00;H04Q9/14;(IPC1-7):G05B15/00 |
主分类号 |
G05B19/02 |
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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