| 发明名称 | Field device of process automation | ||
| 摘要 | A field device of process automation technology having an interface for output of an electrical current signal and a specifying unit, which provides a value, on which depends an electrical current signal to be output via the interface. A first controllable electrical current sink and a second controllable electrical current sink are provided. The first controllable electrical current sink and the second controllable electrical current sink are settable to predeterminable electrical current levels, and that the first controllable electrical current sink and the second controllable electrical current sink are connected with the interface in such a manner that the electrical current signal which at the interface essentially depends on the lower of the predeterminable electrical current levels, to which the first controllable electrical current sink and the second controllable electrical current sink are set. | ||
| 申请公布号 | US9230428(B2) | 申请公布日期 | 2016.01.05 |
| 申请号 | US200913124417 | 申请日期 | 2009.09.18 |
| 申请人 | ENDRESS + HAUSER GMBH + CO. KG | 发明人 | Meier Jürgen;Lange Martin |
| 分类号 | G05B23/02;G08C19/02 | 主分类号 | G05B23/02 |
| 代理机构 | Bacon & Thomas, PLLC | 代理人 | Bacon & Thomas, PLLC |
| 主权项 | 1. A field device of process automation technology, comprising: at least one interface for output of an electrical current signal; at least one specifying unit, which provides at least one value, on which depends the electrical current signal to be output via said at least one interface; and at least a first controllable electrical current sink and a second controllable electrical current sink wherein: said first controllable electrical current sink and said second controllable electrical sink are connected in series and said first controllable electrical current sink and said second controllable electrical current sink are embodied in such a manner, that said first controllable electrical current sink and said second controllable electrical current sink are independently of one another settable to predeterminable electrical current levels; and said first controllable electrical current sink and said second controllable electrical current sink are connected with said at least one interface in such a manner that the electrical current signal present at said at least one interface is the lower of the predeterminable electrical current levels, to which said first controllable electrical current sink and said second controllable electrical current sink are set. | ||
| 地址 | Maulburg DE | ||