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Method for operating a field device for process automation having at least two measurement channels and field device for process automation having at least two measurement channels and suitable for performing said method

A process automation, field equipment technology, applied in the direction of program control, electrical program control, general control system, etc., can solve problems such as large operating expenses

Inactive Publication Date: 2010-09-08
ENDRESS HAUSER CONDUCTA GESELLSCHAFT FUER MESS UND REGELTECHNIK MBH CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Overall, the operating expenditures for field devices of process automation technology with at least two measuring channels are very high

Method used

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  • Method for operating a field device for process automation having at least two measurement channels and field device for process automation having at least two measurement channels and suitable for performing said method
  • Method for operating a field device for process automation having at least two measurement channels and field device for process automation having at least two measurement channels and suitable for performing said method
  • Method for operating a field device for process automation having at least two measurement channels and field device for process automation having at least two measurement channels and suitable for performing said method

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Embodiment Construction

[0040] exist figure 1 The field device F1 shown in , essentially consists of a measuring transducer MU, to which four sensors S1-S4 are connected. These sensors are two pH sensors, a conductivity sensor Lt and an oxygen sensor Ox. These sensors are used to record the corresponding process variables pH, conductivity or oxygen content.

[0041] The sensors S1-S4 are each connected to a microcontroller μC1 for measured value processing. The measured value processing takes place in a corresponding program module in the microcontroller μC1. Together with the sensors S1-S4, these program modules form the respective measurement channels. Field device F1 therefore has four measurement channels.

[0042] The digital communication between the sensors S1-S4 and the microcontroller μC1 is realized via RS485 connection. The corresponding process variable is basically digitized in each sensor S1-S4, the actual measured value processing takes place in a program module in the microcontro...

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Abstract

The invention relates to a method for operating a field device for process automation having at least two measurement channels using an external operating unit, separate device descriptions for the measurement channels being provided in the operating unit. The individual measurement channels can be invoked as logical units on the operating unit by means of the corresponding device description, such that the field device appears to the user to be at least two logically independent field devices during operation.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for operating a field device of process automation technology having at least two measuring channels and a device according to the preamble of claim 6 which is suitable for carrying out the method Field device of process automation technology with at least two measuring channels. Background technique [0002] In process automation technology, field devices are often incorporated which are used to record process variables. [0003] Examples of such field devices are level measuring devices, flow measuring devices, pressure measuring devices or temperature measuring devices etc. which record the corresponding process variables: level, flow, pressure or temperature. [0004] A large number of such field devices are manufactured and sold by the company Endress+Hauser. [0005] Field devices generally consist of measuring transducers and sensors. A sensor basically converts a process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G05B19/418G06F9/455
CPCG05B19/0425G05B2219/24184
Inventor 沃夫冈·巴贝尔斯特凡·罗布尔德特勒夫·维特默
Owner ENDRESS HAUSER CONDUCTA GESELLSCHAFT FUER MESS UND REGELTECHNIK MBH CO KG