Data Transfer on Industrial Process Networks
An industrial process and network technology, applied in the direction of program control, transmission system, electrical program control, etc., can solve problems such as time-consuming, increase time and cost, increase communication robustness, etc.
Active Publication Date: 2020-09-18
EMERSON PROCESS MANAGEMENT LLLP
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Problems solved by technology
Retransmits unacknowledged messages, thereby increasing the robustness of the communication, additionally introducing an overhead to the communication scheme that is time bounded by the maximum token holding time allocated to each device for unscheduled communication
Thus, data interactions involving large amounts of data (such as configuration files and / or DDs) can be time-consuming, increasing the time and expense associated with commissioning of devices and configuration of fieldbus networks
Method used
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[0033] A host device as described herein may interface with a field device using a device description (DD) that describes functional attributes of the field device, such as data type attributes, calibration attributes, or other such functional attributes. According to the technology of the present disclosure, a DD corresponding to a field device can be stored in a nonvolatile memory of the field device and uploaded to a host device. In this way, the host device can obtain the DD corresponding to a particular field device from the host device itself, thereby facilitating communication between devices, eg, for initialization and commissioning of the field device. Accordingly, techniques may enable out-of-the-box communications between field devices and host devices while helping to minimize the likelihood of these communications failing due to incompatible versions of DDs that the field devices and host systems use to communicate. In some examples, the field device may store mul...
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An enhanced communication protocol can improve the reliability and efficiency of data transfer between a host device and one or more field devices on an industrial process network. A field device may store a device description that includes a number of parameters describing functional properties of the field device. A host device can upload the device description for use in communicating with the field device. The field device may also store a plurality of storable configurations, each storable configuration representing an overall configuration of the field device. The host device may upload the plurality of storable configurations from the host device, for example to transfer storable configurations to a second field device on the same network or a different network. The host device may send a configuration activation request that may cause the field device to operate according to configuration data included in a selected one of a plurality of storable configurations.
Description
technical field [0001] The present disclosure generally relates to data transfer over industrial process networks. More specifically, the present disclosure relates to data transfer between field devices and host devices on industrial process networks. Background technique [0002] In a typical industrial plant, a distributed control system (DCS) is used to control the many industrial processes performed at the plant. Typically, plants have a centralized control room with computer systems with user input / output (I / O), disk I / O, and other peripherals. Coupled to the computer system are the controller and process I / O subsystems. The process I / O subsystem includes I / O ports that connect to various field devices throughout the plant. Field devices include various types of analytical instruments such as pressure sensors, temperature sensors, switches, transducers, valve positioners and actuators, and any other device that performs a function in a distributed control system. ...
Claims
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IPC IPC(8): G05B19/418
CPCG05B19/4188H04L67/34H04L67/12H04L41/0846H04L41/0806H04L69/04H04W4/06H04L67/5651
Inventor 安东尼·迪恩·费古森布赖恩·阿伦·弗朗查克托马斯·马文·贝尔
Owner EMERSON PROCESS MANAGEMENT LLLP