Method and system for remote upgrade of PLC (Programmable Logic Controller)

A remote upgrade and upgrade command technology, applied in the field of remote upgrade PLC, can solve the problems of slow system data transmission, failure to meet the security and stability requirements of remote upgrade, etc., to ensure security and stability, and fast data transmission speed Effect
CN103414741AActive Publication Date: 2013-11-27SUZHOU INOVANCE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU INOVANCE TECH CO LTD
Publication Date
2013-11-27

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Abstract

A method and a system for a remote upgrade of a PLC (Programmable Logic Controller) are provided by the invention. The system includes a terminal device, one or more PLCs, a PLC update server and a PLC wireless extension unit. The method comprises the steps: S1, the terminal device transmits an upgrade instruction to the PLC wireless extension unit through the PLC update server; S2, the PLC wireless extension unit downloads an upgrade file instructed by the upgrade instruction from the PLC update server; and S3, the PLC wireless extension unit uses the downloaded upgrade file to upgrade a target PLC instructed by the upgrade instruction. In the system, the data transmission speed is fast; and the use of safe, reliable protocol is allowed in the system to complete the remote upgrade of the PLC.
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Description

technical field

[0001] The present invention relates to the field of programmable logic controller (Programmable Logic Controller, PLC), and more specifically, relates to a method and system for remotely upgrading PLC. Background technique

[0002] With the development of industrial control technology, the Industrial Internet of Things is playing an increasingly important role in monitoring the operation of industrial equipment technology in different regions and in various special environments. In the prior art, the PLC is locally connected to the computer through a serial port line or a USB line, and the user program and system program of the PLC are upgraded under the control of the computer, and the upgrade program is updated by operating the PLC program editing software. In this upgrade method, because the PLC is connected to the computer one-to-one, when a large number of PLCs need to be upgraded, the upgrade work is heavy, the operation is inconvenient, the efficiency...

Claims

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