Measuring device for process engineering and operating method for a measuring device
AssigneeEndress+Hauser Conducta GmbH+Co. KG
InventorsMichael Gunzert, Martin Gehrke
Life of this patent
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Abstract
This invention relates to a measuring device for process technology, to be used in measurement and/or cleaning and/or calibration installations in the area of process automation, for measuring pH-values and/or redox potentials and/or other process parameters, and has a central unit, with which at least one measurement module is connectable. Every measurement module is selectable by the central unit by a selection line assigned thereto.
Claims11
A measuring device for process technology, to be used in measurement and/or cleaning and/or calibration installations in the area of process automation, for measuring pH-values and/or redox potentials and/or other process parameters, comprising:
- a central unit;
- a central transmission line;
- at least one measurement module connected to said central unit by said central transmission line for transferring a data signal over said central transmission line from said central unit to said measurement module;
- a multiplexer;
- and
- a selection line associated with each measurement module for connecting its associated measurement module to said central unit and to said multiplexer, wherein:
- each measurement module is selectable by said central unit by one of said selection lines;
- said central transmission line and the selection line being different lines;
- each measurement module having a module transmission line connecting the measurement modules with inputs of said multiplexer;
- the multiplexer having an output, which is connectable with said central unit;
- and
- said multiplexer is controllable via said selection lines.
An operating method for a measuring device for process technology, to be used in measurement and/or cleaning and/or calibration installations in the area of process automation, for measuring pH-values and/or redox potentials and/or other process parameters, having a central unit, a multiplexer and a plurality of measurement modules connected with the central unit;
- comprising the steps of:
- providing a selection line for each measurement module connecting the plurality of measurement modules to the central unit;
- selecting a measurement module by the central unit and an associated selection line;
- utilizing data sent from the central unit over a central transmission line only in the measurement module selected by means of the associated selection line;
- and
- controlling the multiplexer by the selection lines such that data transmitted over a module transmission line of the selected module are forwarded via the multiplexer to the central unit.
A measuring device for process technology, to be used in measurement and/or cleaning and/or calibration installations in the area of process automation, for measuring pH-values and/or redox potentials and/or other process parameters, comprising:
- a plurality of measurement modules;
- a central unit;
- a multiplexer;
- a plurality of selection lines;
- and
- a central transmission line, wherein:
- all said measurement modules are connected to said central unit by said central transmission line for transferring a data signal over said central transmission line from said central unit to all measurement modules;
- each measurement module is assigned its own selection line connecting the measurement module to said central unit,
- each measurement module is selectable by said central unit by said selection line, wherein only the measurement module selected by the central unit by the selection line assigned to it utilizes the data signal transmitted from the central unit over the central transmission line;
- said central transmission line and the selection line being different lines;
- each measurement module having a module transmission line connecting the measurement modules with inputs of said multiplexer, the multiplexer having an output, which is connectable with the central unit;
- and
- said multiplexer is controllable via said selection lines.
An operating method for a measuring device for process technology, to be used in measurement and/or cleaning and/or calibration installations in the area of process automation, for measuring pH-values and/or redox potentials and/or other process parameters, having a central unit, and a plurality of measurement modules connected with the central unit, comprising the steps of:
- providing a selection line for each measurement module connecting the plurality of measurement modules to the central unit;
- transmitting data from the central unit over a central transmission line to all measurement modules;
- selecting a measurement module by the central unit and an associated selection line;
- utilizing data sent from the central unit over the central transmission line only in the measurement module selected by means of the associated line;
- and
- controlling a multiplexer by the selection lines such that data transmitted over a module transmission line of the selected measurement module are forwarded via the multiplexer to the central unit, wherein;
- different measuring modules are selected for different selection lines periodically by the central unit;
- and the selection times are changed.
Dependencies are inferred from the claim text.