发明名称 |
Process field device with radio frequency communication |
摘要 |
A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency communication. A power supply powers the RF circuitry using power received from the two-wire process control loop.
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申请公布号 |
US7956738(B2) |
申请公布日期 |
2011.06.07 |
申请号 |
US20070842356 |
申请日期 |
2007.08.21 |
申请人 |
ROSEMOUNT INC. |
发明人 |
KARSCHNIA ROBERT J.;WILLCOX CHARLES R.;BRODEN DAVID A.;WESTFIELD BRIAN L.;ORTH KELLY M. |
分类号 |
H04Q11/04;G05B19/418;G06F13/14;G08B1/08;G08B29/00 |
主分类号 |
H04Q11/04 |
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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