Universal Field Device Operation via Basic Protocol Commands
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Solution Overview
Problem
Existing methods for operating field devices in process automation require multiple device-specific drivers and complex command structures, leading to inefficiencies and inconsistencies in data transfer between field devices and operating programs.
Innovation Solution
A method utilizing only basic protocol commands to transfer data between operating programs and field devices, allowing for universal operation of field devices without device-specific drivers, using a single or two basic commands to query data from multiple devices, and enabling communication through a protocol-compatible interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device-specific drivers and multiple protocol commands are used to operate different field devices, then specific functions of each field device can be accessed, but the system complexity increases and operation becomes more difficult
Solution Approach 1:
The patent implements a universal operating program that can operate multiple types of field devices through a single interface. The device description serves as a universal translation layer that maps various field device protocols and commands to a standardized set of operating program commands, eliminating the need for multiple device-specific drivers while maintaining access to device-specific functions.
2Adaptability or versatility
If multiple device-specific drivers are used to operate different field devices, then complete device functionality can be achieved, but the ease of operation decreases
Solution Approach 1:
The device description acts as an intermediary layer between the operating program and the field device. It translates the uniform commands from the operating program into device-specific protocol commands, allowing the user to operate different field devices uniformly without needing to understand their specific protocols, while still accessing complete device functionality.
3Adaptability or versatility
If separate drivers are created for each operating program, then specific operating program requirements can be met, but the device complexity and maintenance burden increase
Solution Approach 1:
The device description is designed as a universal component that works with multiple operating programs through a standardized interface. Instead of creating separate drivers for each operating program, the same device description can be used across different operating programs, reducing development complexity and maintenance burden while maintaining operating program compatibility.
Data Source
Figure 1
AI summary
The invention relates to a method for operating a field device (T1, T2) of process automation technology, wherein data are exchanged by means of at least one protocol between the field device (F1, F2) and a control program (P1, P2, P3, P4), wherein the protocol has base commands via which base commands base functions (F1, F2, F3, F4) of the field device are called up, each field device (T1, T2) compatible with the protocol having said base functions (F1, F2, F3, F4), wherein only base commands of the protocol are used to transfer data between the control program (P1, P2, P3, P4) and the field device (T1, T2).