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IEEE1588 time synchronization method and device based on PAC (Programmable Automation Controller)

An IEEE1588, controller technology, applied in the field of IEEE1588 time synchronization devices, can solve the problems of PAC controllers not found, and achieve the effects of simple structure, high-precision clock synchronization, and convenient use

Active Publication Date: 2016-11-16
THREE GORGES NENGSHIDA ELECTRIC
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Problems solved by technology

[0004] There are many methods to achieve IEEE1588 time synchronization, among which the method of using hardware to realize high-precision IEEE1588 time synchronization is relatively popular, but there is no device on the market that uses the excellent performance of the PAC controller to perform IEEE1588 time synchronization

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  • IEEE1588 time synchronization method and device based on PAC (Programmable Automation Controller)
  • IEEE1588 time synchronization method and device based on PAC (Programmable Automation Controller)
  • IEEE1588 time synchronization method and device based on PAC (Programmable Automation Controller)

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention is further described:

[0026] Such as figure 1 As shown, a PAC controller-based IEEE1588 timing method and device, including a PAC controller 1 and an IEEE1588 clock source 2, the PAC controller 1 and the IEEE1588 clock source 2 are connected through a network cable 3, and the PAC controller 1 includes a power supply module 10, a CPU module 11, a functional module 12, a functional module 2 13 and a clock synchronization module 14, the power supply module 10, a CPU module 11, a functional module 12, a functional module 2 13 and a clock synchronization module 14 through the backplane bus 15 for connection, the power supply module 10 is used to provide operating voltage to the CPU module 11, function module one 12, function module two 13 and clock synchronization module 14, and the CPU module 11 is used to communicate with the clock synchronization module 14 and output Control instructions, the first f...

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Abstract

The invention discloses an IEEE1588 time synchronization method and device based on a PAC (Programmable Automation Controller). The method comprises the following steps that: a clock synchronization module synchronizes with an IEEE1588 clock source; a CPU (Central Processing Unit) module reads a clock deviation value; the CPU module performs clock correction; the PAC is connected with the IEEE1588 clock source through a data cable; a power supply module, the CPU module, a functional module I, a functional module II and the clock synchronization module are connected through a backplane bus; the CPU module is used for communicating with the clock synchronization module and outputting a control command; and the clock synchronization module is used for finishing clock synchronization with the IEEE1588 clock source. The method and the device have the technical effects of simple structure and convenience in use. Moreover, high-performance hardware in the PAC is utilized fully; accurate time synchronization of the IEEE1588 is realized; extra hardware does not need to be added; and the hardware cost is reduced.

Description

technical field [0001] The invention relates to an IEEE1588 time synchronization device, in particular to an IEEE1588 time synchronization method and device based on a PAC controller. Background technique [0002] IEEE1588 time synchronization refers to the use of "Precision Clock Synchronization Protocol Standard for Network Measurement and Control System" to realize network time synchronization, which is used to solve the problem of insufficient timing synchronization ability of Ethernet, and is currently widely used in the industrial field. [0003] PAC controller has the openness of PC, high-performance CPU, high-capacity memory and powerful performance of software, and has the reliability, robustness and decentralization characteristics of PLC. PAC uses existing commercial computer technology, so it has better performance and scalability. Through commercial mass-produced platforms, it is easy to maintain and has low downtime and other characteristics. [0004] There a...

Claims

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Application Information

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IPC IPC(8): H04L7/00H04J3/06
CPCH04J3/0644H04J3/0682H04L7/0037
Inventor 王瑞清乐绪鑫孙杰刘荆飞
Owner THREE GORGES NENGSHIDA ELECTRIC
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