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公开(公告)号:US20110148511A1
公开(公告)日:2011-06-23
申请号:US12451934
申请日:2009-10-09
申请人: Christian Seiler , Dirk Rapp
发明人: Christian Seiler , Dirk Rapp
IPC分类号: G05F1/10
CPC分类号: G05B19/0423 , G05B2219/25006 , G05B2219/25198 , G05B2219/25282 , G05B2219/25428
摘要: An automation technology, autarkic, field device, which is connected via two connecting terminals to an I/O module. The I/O module is embodied as a 4-20 mA/HART I/O module. The I/O module is associated with a controllable energy source via which the field device is supplied with energy. An electrical current measuring unit is provided which ascertains the electrical current supplied by the energy source. In the I/O module, internal resistors are provided, across which occurs in each case a voltage drop dependent on the flowing electrical current. A control unit is provided, which operates the energy source in such a way that a predetermined terminal voltage is supplied on the connecting terminals for powering the field device.
摘要翻译: 自动化技术,自给自足的现场设备,通过两个连接终端连接到I / O模块。 I / O模块体现为4-20 mA / HART I / O模块。 I / O模块与可控能源相关联,通过该可控能源,现场设备被供应能量。 提供一种电流测量单元,其确定由能量源提供的电流。 在I / O模块中,提供了内部电阻,在每种情况下都会产生取决于流动电流的电压降。 提供一种控制单元,其以这样的方式操作能量源,使得在连接端子上提供预定的端子电压以为现场设备供电。
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公开(公告)号:US09442477B2
公开(公告)日:2016-09-13
申请号:US12451934
申请日:2009-10-09
申请人: Christian Seiler , Dirk Rapp
发明人: Christian Seiler , Dirk Rapp
IPC分类号: G05F1/10 , G05B19/042
CPC分类号: G05B19/0423 , G05B2219/25006 , G05B2219/25198 , G05B2219/25282 , G05B2219/25428
摘要: An automation technology, autarkic, field device, which is connected via two connecting terminals to an I/O module. The I/O module is embodied as a 4-20 mA/HART I/O module. The I/O module is associated with a controllable energy source via which the field device is supplied with energy. An electrical current measuring unit is provided which ascertains the electrical current supplied by the energy source. In the I/O module, internal resistors are provided, across which occurs in each case a voltage drop dependent on the flowing electrical current. A control unit is provided, which operates the energy source in such a way that a predetermined terminal voltage is supplied on the connecting terminals for powering the field device.
摘要翻译: 自动化技术,自给自足的现场设备,通过两个连接终端连接到I / O模块。 I / O模块体现为4-20 mA / HART I / O模块。 I / O模块与可控能源相关联,通过该可控能源,现场设备被供应能量。 提供一种电流测量单元,其确定由能量源提供的电流。 在I / O模块中,提供了内部电阻,在每种情况下都会产生取决于流动电流的电压降。 提供一种控制单元,其以这样的方式操作能量源,使得在连接端子上提供预定的端子电压以为现场设备供电。
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公开(公告)号:US20060031626A1
公开(公告)日:2006-02-09
申请号:US11195601
申请日:2005-08-03
申请人: Dirk Rapp , Stefan Maier , Hans Kornmeier
发明人: Dirk Rapp , Stefan Maier , Hans Kornmeier
IPC分类号: G06F12/00
CPC分类号: G11C16/349 , G11C16/3495
摘要: In an automation technology field device having a microprocessor P and a non-volatile, writable data memory NVM for storing parameter values, the data memory having a predetermined maximum number WAmax of write accesses per memory location ML, a counter C is provided for counting write accesses WA to the data memory NVM. Additionally, a memory management unit MMU is provided, which evaluates the reading of the counter C, and prevents an exceeding of the maximum number WAmax of write accesses to a memory location ML.
摘要翻译: 在具有用于存储参数值的微处理器P和非易失性可写入数据存储器NVM的自动化技术现场设备中,数据存储器具有每存储器位置ML的写访问的预定最大数量WAmax,计数器C用于对写入进行计数 访问WA到数据存储器NVM。 此外,提供了存储器管理单元MMU,其评估计数器C的读取,并且防止超过对存储器位置ML的写入访问的最大数量WAmax。
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