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Domestic CPU-based redundant analog quantity output board card with recovery diagnosis function

A diagnostic function and analog quantity technology, applied in simulators, instruments, computer control, etc., can solve the problems of inability to obtain the actual status information of the output signal and low on-site safety, and achieve high data processing efficiency, high equipment robustness, The effect of reducing workload

Pending Publication Date: 2021-04-16
中电智能科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the patent cannot obtain the actual status information of the output signal, and there is no redundant function, the site safety is low

Method used

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  • Domestic CPU-based redundant analog quantity output board card with recovery diagnosis function
  • Domestic CPU-based redundant analog quantity output board card with recovery diagnosis function

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] A composition block diagram of a redundant analog output board based on a domestic CPU with recovery diagnosis function, the composition block diagram is as follows figure 1 As shown, microprocessor, slave station controller, data arbitration circuit module, optocoupler isolator A, optocoupler isolator B, analog output recovery circuit module A, analog output recovery circuit module B.

[0029] The slave station controller implements the EtherCAT slave station physical layer and data link layer protocol. The slave station controller adopts ET1100 or ET1200, and this embodiment adopts ET1200. The working mode of ET1200 is 00 mode, the physical layer of the two communication interfaces adopts EBUS form (LVDS data transmission standard used by German Beckhoff company), the data stream is input from EBUS0 and output from EBUS1. The slave station co...

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Abstract

The invention relates to a domestic CPU-based redundant analog quantity output board card with a recovery diagnosis function. The system comprises a microprocessor, a slave station controller, a data arbitration circuit module, an optocoupler isolator A, an optocoupler isolator B, an analog quantity output recovery circuit module A and an analog quantity output recovery circuit module B. The slave station receives data through the EBUS and then sends the data to the microprocessor through the SPI bus, then the microprocessor sends the data to the data arbitration module through the SPI bus, and finally the data arbitration circuit module enables the data to pass through the SPI bus according to configuration information, and throughthe optocoupler isolators, the recovery data of the analog quantity output recovery circuit module is received, the output data of the analog quantity output recovery circuit module is sent, and the diagnosis information is sent to the microprocessor. The board card adopts domestic devices and has good autonomous controllability. The board card provides a redundant output channel, and the reliability is higher. The board card recovers output signals in real time, and the controllability is higher.

Description

technical field [0001] The invention belongs to the field of EtherCAT (Ethernet Control Automation Technology), and specifically relates to an industrial real-time Ethernet EtherCAT analog slave station board. Background technique [0002] EtherCAT is an Ethernet-based field bus, which has the characteristics of high real-time performance, flexible topology, and system configuration. With the improvement of industrial real-time requirements, more and more applications have been obtained. The patent with the authorization number CN201621134318.X discloses an EtherCAT voltage analog signal output module, including a power indicator light, a P#IN connection, a communication indicator light, an LED indicator light, an external resistor, and a fuse on the side of the EIM4014 module. , EtherCAT status indicator light, P#OUT connection, communication indicator light, PBUS module signal bus, plug-in terminal, 24V contact, 0V contact, the bottom of the EIM4014 module is provided wit...

Claims

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Application Information

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IPC IPC(8): G05B19/042
Inventor 陈海赵德政林浩刘骏张彪霍书侠林国章曹蓉
Owner 中电智能科技有限公司