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Intelligent electric power monitoring apparatus and large data size corresponding method for Rockwell controller

A technology of intelligent power and monitoring devices, applied in circuit devices, power network operating system integration, electrical components, etc., to achieve the effect of high reliability

Inactive Publication Date: 2008-11-12
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the network configuration, the maximum number of data bytes allowed by each intelligent power monitoring device allowed by the I / O space of the Rockwell controller is only 255, that is, the Rockwell controller can only receive the smart power monitoring device at most at one time 63 (the quotient of 255 / 4) power parameters transmitted; therefore, a key problem to be solved is how to receive a large amount of data transmitted by the intelligent power monitoring device based on the smaller Scanner module I / O space and pass some method to save / cache it

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  • Intelligent electric power monitoring apparatus and large data size corresponding method for Rockwell controller
  • Intelligent electric power monitoring apparatus and large data size corresponding method for Rockwell controller
  • Intelligent electric power monitoring apparatus and large data size corresponding method for Rockwell controller

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[0024] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0025] see figure 1 As shown, it is a flow chart of the method for the intelligent power monitoring device of the present invention to communicate with the Rockwell controller with a large amount of data, and the process it includes is:

[0026] Step a: The intelligent power monitoring device initializes the communication content, and establishes a DeviceNet communication connection with the Rockwell controller;

[0027] Step b: the Rockwell controller periodically sends an I / O polling command message for conventional data to the intelligent power monitoring device;

[0028] Step c: the intelligent power monitoring device sends the polling response data to the Rockwell controller after segmentation;

[0029] Step d: the Rockwell controller receives the polling response data sent by the intelligent power ...

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Abstract

The invention discloses a method for a large data communication between an intelligent power monitoring unit and a Rockwell controller. The invention comprises the following steps: the intelligent power monitoring unit initializes communication contents and establishes a Device Net communication connection with the Rockwell controller; the Rockwell controller periodically sends I / O poll command message for routine data to the intelligent power monitoring unit; after segmenting poll response data, the intelligent power monitoring unit sends the poll response data to the Rockwell controller; the Rockwell controller receives the poll response data sent by the intelligent power monitoring unit; the poll response data received by the Rockwell controller is stored or cached in a two-dimensional array space established in a CPU module as a process controller.

Description

technical field [0001] The invention relates to a Rockwell controller system, in particular to a method for carrying out large data volume DeviceNet communication between the Rockwell controller and an intelligent power monitoring device. Background technique [0002] The intelligent power monitoring device is a device with a DeviceNet field bus interface, which can exchange information with the main computer (PC, PLC, etc.) through the DeviceNet field bus, monitor the parameters and status of the power distribution circuit, and control its on-off status Intelligent unit; in addition, it also has functions such as remote signaling / remote control, event recording, power / load setting and control execution, and power supply quality monitoring. ControlLogix is ​​a powerful modular controller system provided by Rockwell, which provides a common control engine, software programming environment and communication support across multiple hardware platforms, and can perform high-speed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCY04S20/242Y02B70/3266Y02B70/30
Inventor 佟为明林景波李凤阁李中伟刘勇赵志衡卢雷
Owner HARBIN INST OF TECH
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