RU180915U1 - CPU MODULE - Google Patents

Abstract

The processor module (MP) contains a microprocessor connected through a buffer register and a data bus with many external data input / output modules, random access memory connected via an internal data bus with a microprocessor, read-only memory (flash memory) connected through an internal a data bus with a microprocessor, a data output register connected via an internal data bus with a microprocessor, an indication unit connected to a data output register, a CAN interface, connected via a CAN interface controller with a microprocessor and configured for communication of the microprocessor with external monitored and controlled devices, equipped with a CAN interface, and for programming the module from a personal computer.

Description

Technical field

The utility model relates to the field of automated control systems for the technical parameters of industrial processes, and more precisely to the processor module, which can be used to build automatic and automated control systems and technological processes.

State of the art

The AUTOMATIC REGULATION BLOCK (BAR) is known from the prior art (patent RU 2457530 C1, IPC G05B15 / 00 , published July 27, 2012, bull.21), used in automated control systems of power units of nuclear power plants. The unit, which is part of the automatic control equipment, is designed to control pressure, flow, vacuum, level, temperature, power, concentration of substances, speed of movement or rotation, and other parameters that can be converted into DC signals.

The specified automatic control unit contains analog input mezzanines (MVA), digital input mezzanines (MVC), digital output mezzanines (MVVC), analog output mezzanines (MVVA), interface mezzanines (MI), the input-outputs of which are connected to an external input to communicate with the object male connector XP15 (XP16).

The composition, types, and number of mezzanines are a flexible, tunable structure. The BAR additionally contains the first programmable logic integrated circuit FPGA (Spartan 3), the first inputs and outputs of which are connected to the outputs and inputs of the mezzanines MVA, MVTS, MVVTS, MVVA, MI, a generator whose output is connected to the input of the first FPGA (Spartan 3), non-volatile ENZU memory device and temperature sensor, the inputs and outputs of which are connected to the second outputs-inputs of the FPGA Spartan 3, the second FPGA (CPLD), the inputs and outputs of which are connected to the third outputs-inputs of the first FPGA (Spartan 3), display elements and control elements ( buttons), inputs the first and second outputs are connected respectively to the outputs and inputs of the second FPGA (CPLD), a single-board computer, the first input-output of which is connected to the fourth input-output of the first FPGA (Spartan 3), interface mezzanines MI1, the inputs of which are connected to the outputs of the second FPGA, and the first and second inputs / outputs are connected respectively to the second input-output of a single-board computer (RS232) and the first output-input of a BAR (RS232 / 485), the third, fourth, fifth and sixth inputs and outputs of a single-board computer are connected respectively to the second input-output of Ethernet 1, tre VGA input-output, fourth Keyboard / Mouse input-output (keyboard / mouse type mouse), USBO fifth input-output, first and second flash modules (USB FLASH MODULE), whose input-outputs are connected to the sixth and the seventh USB2 and USB3 inputs and outputs of the single-board computer, the USB-Ethernet mezzanine interface, the inputs / outputs of which are connected respectively to the eighth input-output of the single-board computer and the sixth Ethernet input-output 2 BAR. The disadvantages of this analogue include the lack of support for the CAN interface and the interface ModBus RTU.

The closest analogue to the claimed utility model is a METHOD FOR TWO-LEVEL MANAGEMENT OF TECHNICAL MEANS AND A SYSTEM FOR ITS IMPLEMENTATION (patent RU 2503985, IPC G05B15 / 00, published August 27, 2013, Bull. No. 1). In the method, they create a database of their TS, impact objects and environmental conditions, analyze and add data on the impact objects, identify and classify the impact objects, determine priorities and create a list of impact objects in accordance with their priorities, assess the effectiveness of the impact at the control point ( PU) of the first level, an assessment of the capabilities of your vehicle group at the second-level PU, the formation of a list of TS for efficiency, the distribution of objects of influence between TS, the formation of target designations and control commands, the transfer of their technical means.

A method of two-level control of technical means consists in generating commands on a computerized control panel and transmitting them via communication lines to a command receiving device and addressing the issuing of control signals, at the same time, a database of their technical means (TS) is formed sequentially at a second-level control point (PU), impact objects and environmental conditions, analyze data on their vehicles, impact objects and environmental conditions for completeness, if necessary, add data on volume actions, identify the objects of influence, classify the objects of influence, determine the priorities of the objects of influence, form a list of objects of influence in accordance with the obtained values of their priorities, form a command in the form of control signals to assess the effectiveness of the impact of their TS on all objects of influence included in the list of priority , and transmit it via communication lines to the first-level controllers, at the first-level control points, after receiving this command, they form their database of the TS, objects of influence and environmental conditions, evaluate the effectiveness of the impact of its TS on all the objects of influence included in the priority list, transmit to the second-level control center the results of the assessment of the effectiveness of the impact of its TS on all the objects of influence listed in the priority list, on the second level collect the results of evaluating the effectiveness of the impact of their TS on all objects of influence included in the list of priority, assess the capabilities of their group of TS, form luchaynym manner list TC efficiency values which were sufficient for impacts on the objects from the generated list, distributed objects to carry out the impact between the vehicle by sequential pairwise correlation objects impact and TC of the respective generated lists, formed targeting regular vehicle for exposure to the selected objects.

The system of two-level control of technical means contains a second control panel, connected through the computer network lines to a command receiving device and addressing the output of control signals, while the computer network communication lines are made in the form of series-connected second-level data transmission equipment, channel-forming second-level equipment, and communication lines with control points of the first level, channel-forming equipment of the first level and equipment for transmitting data of the first level, as well as the fact that A unit for additionally determining data on objects of influence was introduced, the first input of which is connected to the fourth output of the second control panel, the first input of which is connected to the second output of second-level data transmission equipment, the second input of which is connected to the second output of channel-forming equipment of the second level, and the object selection block according to characteristics the first input of which is connected to the output of the unit for additionally determining data on the objects of influence, the second device for storing the database of its technical means (TS), the object under the influence and environmental conditions, the first input of which is connected to the second output of the second control panel, the second output is connected to the second input of the unit for determining the data on the objects of influence, the second input to the output, and the third output to the second input of the object selection block according to characteristics, block collecting and analyzing data on objects of influence, the first input of which is connected to the third output, and the output to the second input of the second control panel, the second input is connected to the first output of the second database storage device TS, objects of influence and environmental conditions, block of identification of objects of influence, the first input of which is connected to the sixth output, output - with the fourth input of the second storage device database of their vehicles, objects of influence and environmental conditions, and the second input - with the fifth output of the second control panel , a block for classifying objects of influence, the first input of which is connected to the seventh output of the second control panel, the second input - with the eighth output, and the first output - with the fifth input of the second storage device database of their vehicles, impact objects and environmental conditions, a block for determining the priorities of impact objects, the first input of which is connected to the second output of the classification block of impact objects, the second input - with the fourth output, and the first output - with the sixth input of the second storage device database of your vehicle, objects of influence and conditions situation, the distribution block of the objects of influence between the TS, the first input of which is connected to the second output of the block for determining the priorities of the objects of influence, and the first output - with the third input of the second device storing the database of their vehicles, objects of influence and environmental conditions, a unit for assessing the capabilities of their group of vehicles, the first input of which is connected to the third output of the unit for determining the priorities of the objects of impact, and the second input - with the fifth output of the second storage device of the database of their vehicles, objects of influence and environmental conditions, a unit for generating a list of TS according to efficiency, the input of which is connected to the output of the unit for assessing the capabilities of its group of TS, and the output to the second input of the block of distribution of objects of influence between TS, target designation unit of the TS, the first input of which is connected to the second output of the block of distribution of objects of influence between the TS, the second input - with the eighth output, and the output - with the third input of the second control panel, the second information display device, the first input of which is connected to the sixth output the second control panel, the second input with the seventh output of the second device for storing the database of their vehicles, objects of influence and environmental conditions, and the third input with the third output of the distribution block of the objects of influence between for vehicles that, together with the second control panel, second-level data transmission equipment, and second-level channel-forming equipment, form a second-level control point, a control device for technical equipment is also introduced, the input of which is connected to the output of the command receiving device and address output of control signals, the first control panel the first input of which is connected to the second output of the data transmission equipment of the first level, and the first output to the second input of the device for receiving commands and addressing the output of control important signals, the first information display device, the first input of which is connected to the second output of the first control panel, and the second input - to the second output of the device for receiving commands and addressing the output of control signals, the first device for storing the database of your vehicle, objects of influence and environmental conditions, the first the input of which is connected to the third output of the data transmission equipment of the first level, the second input to the third output of the first control panel, and the first output to the third input of the first display device information, the impact effectiveness assessment unit, the output of which is connected to the third input, and the second input - with the third output of the first database storage device of its vehicle, objects of influence and environmental conditions, the first input of the effectiveness evaluation unit is connected to the fourth output of the first control panel, fifth output which is connected to the second input of the data transmission equipment of the first level, the fourth output of which is connected to the second input of the channel-forming equipment of the first level, which together with the channel-forming ap The first level equipment, the first level data transmission equipment and the command receiving device and the address output of control signals comprise the first level control point, the number of which is determined by the number of technical means.

The disadvantages of this device include the lack of support for the CAN interface and the ModBus RTU interface and the lack of self-diagnosis.

Utility Model Summary

The influence of these shortcomings on the operation of the module is proposed to be excluded in this utility model.

The proposed processor module will allow to solve the problem of expanding the functionality of the module by providing information about the state of external controlled and controlled devices and self-diagnosis of the module by automatically checking the operation of the main units of the module and receiving commands to change the operating mode.

The technical result, which is provided by the proposed utility model, is that due to the presence of a CAN interface controller and a ModBus RTU interface controller in the processor module, information is provided on the status of external monitored and controlled devices, including process parameters sensors and actuators, and at the same time, the expansion of functionality for self-diagnosis of the module and increase its reliability is ensured by means of a systematic check of the operation of the main blocks of the processor module and the transfer of the results of the self-diagnosis of the processor module to the diagnostic console to visualize the results of the self-diagnosis, and receiving commands to change the operating mode of the processor module in accordance with the program recorded in the processor module.

The technical result is achieved due to the fact that the proposed utility model - processor module contains:

a microprocessor connected through a buffer register and a data transfer bus with many external data input / output modules,

random access memory connected via an internal data bus with a microprocessor,

read-only memory device (flash memory) connected via an internal data bus with a microprocessor,

a data output register connected via an internal data bus to a microprocessor,

an indication unit connected to a data output register,

characterized in that it contains

CAN interface controller and

CAN interface connected via a CAN interface controller with a microprocessor and configured to communicate with the microprocessor with external monitored and controlled devices, including process parameters sensors and actuators equipped with a CAN interface, and for programming the module from a personal computer connected to the module via the interface CAN.

Preferably, the module further comprises a ModBus RTU interface controller and a ModBus RTU interface connected through a ModBus RTU interface controller to a microprocessor and configured to receive information about the status of external monitored and controlled devices, as well as to issue the results of the module’s self-diagnosis and to receive commands for changing the operating mode and programming the module from a personal computer connected to the module via the ModBus RTU interface.

Brief Description of the Drawing

The utility model is illustrated by a description of a preferred embodiment with reference to the accompanying drawing, which shows a block diagram of a processor module.

Description of the preferred embodiment

Elements of a utility model and the relationships between them are shown in FIG.

The processor module 1 (MP) contains a microprocessor 2 connected through a buffer register 3 and a data transfer bus 4 to a plurality of external data input / output modules 5.

The module contains a random access memory 6, and a read-only memory 7 (flash memory) connected via an internal data bus 8 with a microprocessor 2.

A microprocessor 2 is also associated with a data output register 9 via an internal data bus 8. An indication unit 10 is connected to the data output register 9.

The processor module 1 also contains a CAN interface controller 11 and a CAN interface 12 connected through a CAN interface controller 11 to a microprocessor 2 and configured to communicate the microprocessor 2 with external monitored and controlled devices 13, which are considered process parameters sensors and actuators equipped with CAN interface, and for programming module 1 of the processor. The programming of module 1 is carried out from a personal computer (not shown) connected to the module via the CAN interface or the ModBus RTU interface.

The CAN 12 interface provides the organization of serial, highly reliable and inexpensive communication channels in distributed control systems. It allows you to organize both multiplex channels and high-speed networks. This interface has a protocol that supports the ability to locate several leading devices on the trunk and provides real-time data transfer.

The CAN 12 interface has high noise immunity due to error correction. Data transmission is carried out by frames, which are accepted by all network devices. The CAN interface identifier describes the contents of the data packet and is used to determine the priority when trying to transmit data simultaneously between multiple devices. The data transfer rate is selected based on the distance, the number of subscribers in the network and the capacity of the communication line. It is set according to the program and can range from a dozen Kbaud to one Mbaud.

The CAN interface standard defines data transfer regardless of the physical layer, i.e. The communication channel can be anything, for example, a radio channel or optical fiber. However, in practice, the CAN interface usually means a network with a physical communication channel in the form of a differential pair of wires.

After establishing the fact of communication loss or the fact of malfunction of the units of module 1, a diagnostic message is generated via the CAN 12 interface about this fact, a message is transmitted, for example, to an external diagnostic console 14 and is displayed on the display to the operator.

The microprocessor 2 through the CAN interface 12 and the controller of the CAN interface 11 can receive information about the status of external monitored and controlled devices 13 having a CAN interface, output the results of the module self-diagnosis to external devices having a CAN interface, for example, to an external diagnostic console 14, and receive commands to change the operating mode.

The use of the industrial interface CAN 12 allows for reliable real-time data transmission for a wide class of devices - diagnostic consoles, industrial computers, input-output devices.

The processor module 1 also contains a controller 15 of the ModBus RTU interface and a ModBus RTU interface 16 connected through a controller 15 of the ModBus RTU interface to the microprocessor 2 and configured to receive information about the status of external monitored and controlled devices 13, as well as to output the results of the self-diagnosis of the processor module 1 and receiving commands for changing the operating mode of the processor module 1.

The ModBus RTU protocol is used to transfer data over serial interfaces, such as RS-232 or RS-485. Most modern devices use RS-485, as it is usually two-wire and allows you to connect multiple devices in one cable.

ModBus network is built on the principle of "master-slave", where the master can be only one. Therefore, the exchange of data occurs only at the initiative of the master (it takes turns interviewing all the slaves). If the slave device needs to urgently transmit data, it cannot do this until it is interrogated by the “master”.

ModBus RTU is a type of protocol in which messages are encoded "as is" (by numbers). Between themselves, messages are separated by a pause of 3.5 characters at a given transmission rate.

On each loop, a clear hierarchy of Master - Slave ("Lead" - "Slave") is organized. There can be several slaves, but only one.

The address model ModBus allows you to use the addresses of devices from 1 to 247.

For reading, the master sends a request to the address of the slave device with the function code, indicating the address of the register of interest and the number of registers to read. The slave responds with a packet in which it repeats its own address, the number of the function being processed and, in the data field, places the value of the requested register.

Self-diagnosis of module 1 of the MP processor is as follows.

Diagnostics of random access memory 6, read-only memory 7 and data output register 9 is carried out by recording test words in each memory cell, followed by reading and comparing the recorded and read information. If the read word does not coincide with the written one, this memory cell is considered faulty, the error message is transmitted to a personal computer (not shown) or to the diagnostic console 14 using CAN 12 or ModBus RTU 16 interfaces.

The operation of the processor module 1 is performed in accordance with a program previously written to the read-only memory 7. In general, the execution of the program consists in reading data from the data input / output modules 5 and from external controlled and controlled devices 13, subsequent data processing according to the algorithm, a predetermined program and issuing the resulting control data to the data input / output modules 5 and to external controlled and controlled devices 13. Data is read from the data input / output modules 5 iklicheski, a predetermined time period. Information is transmitted via data bus 4 with intermediate storage in buffer register 3.

Depending on which I / O module 5 is reading information, the received data is interpreted as the state of discrete inputs, as a digitized analog signal, as a value of the frequency of electrical pulses, etc. Depending on the data processing algorithm embedded in the read-only memory 7, data can be transmitted via CAN 12 or ModBus RTU 13 interfaces to an external device, for example, a personal computer, or they can be processed by microprocessor 2. Digitized analog information is processed by microprocessor 2 with the aim of regulation of individual technological parameters (temperature, pressure, flow, etc.) and the development of control action, which is transmitted in the form of digital data from microprocessor 2 through a buffer register 3 and a data bus 4 to a corresponding input / output module 5.

The processing of information received from the digital inputs of the input / output modules 5 is carried out according to a logical algorithm or an on-off control algorithm, followed by data transfer to the corresponding input / output module 5.

In addition, the microprocessor 2 receives data from external devices via CAN 12 and ModBus RTU 16 interfaces. These include data from sensors and measuring devices having one of these interfaces, as well as data from a personal computer or from the diagnostic console 14. Data from sensors and measuring devices are processed similarly to data received from input / output modules 5. Data received by microprocessor 2 from a computer can be transmitted directly to the corresponding input / output modules 5, and can also be perceived as a task or instructions for execution by microprocessor 2, in accordance with the program stored in read-only memory 7. Data received from an external diagnostic console 14, are perceived as commands to transmit to the console the results of the self-diagnosis of the processor module, in response to which the microprocessor 2 transmits to the console 14 the results of the previously executed diagnostics.

Industrial applicability

This technical solution can be widely used in industry, has enhanced functionality, has increased reliability and security, provides qualitatively improved characteristics, is implemented on a modern elemental base, with small weight and size parameters, is adapted for operation in harsh conditions, and has increased reliability.

Claims (3)

1. The processor module (MP) containing a microprocessor connected through a buffer register and a data bus with many external data input / output modules, random access memory connected via an internal data bus with a microprocessor, read-only memory (flash memory) connected via an internal data bus to the microprocessor, a data output register connected via an internal data bus with a microprocessor, an indication unit connected to a data output register, characterized in that it contains an inter controller CAN interface and CAN interface, connected via the CAN interface controller to the microprocessor and configured to connect the microprocessor to external monitored and controlled devices equipped with a CAN interface, and to program the module from a personal computer. 2. The module according to claim 1, characterized in that it contains a ModBus RTU interface controller and a ModBus RTU interface connected through a ModBus RTU interface controller to a microprocessor and configured to receive information about the status of external monitored and controlled devices, as well as output the results of the module’s self-diagnosis and receiving commands for changing the operating mode and programming the module from a personal computer connected to the module through the ModBus RTU interface.

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