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Data processing device, data processing method, and data processing program

A data processing device and a technology for tracking data, which are applied in the direction of electrical digital data processing, data exchange network, and redundant data error detection in hardware, and can solve problems such as complex structures

Inactive Publication Date: 2018-12-21
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the complex structure

Method used

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  • Data processing device, data processing method, and data processing program
  • Data processing device, data processing method, and data processing program
  • Data processing device, data processing method, and data processing program

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Experimental program
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Embodiment approach 1

[0055] ***Description of structure***

[0056] figure 1 An example of the system configuration of this embodiment is shown.

[0057] Control network 101, HMI 102, I / O network 103, input and output terminal 104a, input and output terminal 104b, input and output terminal 104c, PIO unit 106a, PIO unit 106b, PIO unit 106c, controlled object 109 and Figure 7 The structure shown is the same. In this embodiment, when there is no need to distinguish the PIO units 106a, 106b, and 106c, the PIO units 106a, 106b, and 106c are collectively referred to as the PIO units 106.

[0058] Controller 11 a and controller 11 b are connected to HMI 102 via control network 101 . HMI102 corresponds to a host device. The control network 101 corresponds to the first network.

[0059] Furthermore, the controller 11 a and the controller 11 b are connected to the PIO units 106 a , 106 b , and 106 c via the I / O network 103 . The PIO units 106a, 106b, and 106c correspond to devices, respectively. Als...

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Abstract

According to the present invention, a process data management unit (304) receives sets of calculation data repeatedly transmitted from a PIO unit (106), each set of calculation data having a set sequence number, then performs a calculation on each received set of calculation data, and transmits the calculation results to the PIO unit (106). Each time the process data management unit (304) performsa calculation, a sequence number management unit (306) calculates, as a next sequence number, the sequence number of the next set of calculation data on which a calculation is to be performed by theprocess data management unit (304), and notifies a standby controller (11) of the calculated next sequence number via a control network (101). If tracking data transmission rights have been temporarily granted to the currently operating controller (11), a tracking data management unit (307) transmits tracking data to the standby controller (11) via the control network (101).

Description

technical field [0001] The present invention relates to a data processing device, a data processing method, and a data processing program. Background technique [0002] In a plant such as a power plant or a chemical plant, controls such as opening and closing of valves are automated by a controller. In order to carry out the continuous operation of the controlled object, high reliability is required for the controller. Therefore, in these plants, the reliability is maintained by duplicating the controller. [0003] First, use Figure 7 The configuration and operation of a system that duplicates controllers will be described. [0004] exist Figure 7 In the system shown, a controller 100 a and a controller 100 b are connected to a control network 101 . Below, when there is no need to distinguish the controller 100a from the controller 100b, the controller 100a and the controller 100b are collectively referred to as the controller 100 . [0005] An HMI (Human Machine Inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/20
CPCG06F11/20G06F11/2097G06F11/1658G06F11/2005G06F11/2025G06F11/2038G06F11/2048H04L12/40182H04L12/40195H04L2012/4026
Inventor 塚本洋平
Owner MITSUBISHI ELECTRIC CORP