CN114281036A - Industrial bus master station interface card, master station controller and system - Google Patents
Industrial bus master station interface card, master station controller and system Download PDFInfo
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- CN114281036A CN114281036A CN202111490413.9A CN202111490413A CN114281036A CN 114281036 A CN114281036 A CN 114281036A CN 202111490413 A CN202111490413 A CN 202111490413A CN 114281036 A CN114281036 A CN 114281036A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses an industrial bus master station interface card, a master station controller and a system, wherein the industrial bus master station interface card comprises a CPU circuit module, an SATA interface circuit module and a bus interface circuit module; the CPU circuit module is respectively in communication connection with the SATA interface circuit module and the bus interface circuit module; the SATA interface circuit module is used for storing system data of an operating system, and the operating system is used for operating a bus protocol stack; the bus interface circuit module is used for interacting bus data with the industrial bus slave station; the CPU circuit module is used for analyzing bus data through the bus protocol stack. According to the industrial bus master station interface card, the CPU circuit module carries out bus data interaction with the industrial bus slave station through the bus interface circuit module, and the operating system of the SATA interface circuit module runs the bus protocol stack to analyze bus data, so that a communication function and a control function are realized.
Description
Technical Field
The invention relates to the technical field of industrial control, in particular to an industrial bus master station interface card, a master station controller and a system.
Background
With the development of industrialization and informatization, a plurality of field bus technologies need to be supported in a dcs (distributed Control system) system, for example, Profinet (a new generation of automation bus standard based on an industrial ethernet technology) bus technology is rapidly developing. Currently, the prior art uses a Profinet gateway product to convert different communication protocols into Profinet communication protocols, so that a device supporting the Profinet protocol can communicate with different devices through a hardware protocol gateway. However, most of the Profinet gateway products on the market adopt Profinet protocol dedicated chips, which are high in cost and complicated in repair and replacement processes.
Disclosure of Invention
The invention provides an industrial bus master station interface card, a master station controller and a system, aiming at overcoming the defect that industrial bus equipment needs to exchange data through a special gateway product in the prior art.
The invention solves the technical problems through the following technical scheme:
the invention provides an industrial bus master station interface card, which comprises a CPU (central processing unit) circuit module, an SATA (Serial Advanced Technology Attachment) interface circuit module and a bus interface circuit module;
the CPU circuit module is respectively in communication connection with the SATA interface circuit module and the bus interface circuit module;
the SATA interface circuit module is used for storing system data of an operating system, and the operating system is used for operating a bus protocol stack;
the bus interface circuit module is used for interacting bus data with the industrial bus slave station;
the CPU circuit module is used for analyzing bus data through the bus protocol stack.
Preferably, the industrial bus master station interface card further comprises a communication module;
the communication module is used for carrying out data interaction with external equipment;
the CPU circuit module is used for analyzing bus data sent by the external equipment through the bus protocol stack.
Preferably, the operating system is further configured to run a bus configuration program;
the bus configuration program is used for generating a bus configuration file;
the CPU circuit module is used for generating configuration data through the bus configuration program and transmitting the configuration data to the industrial bus slave station through the bus interface circuit module.
Preferably, the industrial bus master station interface card further comprises a control interface circuit module;
the control interface circuit module is used for receiving a control instruction of external control equipment;
the bus configuration program is further used for generating the bus configuration file according to the control instruction.
Preferably, the control interface circuit module includes one or more of USB (Universal Serial Bus), PS/2(personal 2, a computer hardware interface).
Preferably, the industrial bus master station interface card further comprises a display interface circuit module;
the display interface circuit module is used for receiving the display data sent by the CPU circuit module and transmitting the display data to external display equipment.
Preferably, the display Interface circuit module includes one or more of HDMI (High Definition Multimedia Interface), VGA (Video Graphics Array), and DP (display Interface).
Preferably, the industrial bus master station interface card further comprises a power module;
the power module is used for providing electric energy for the CPU circuit module, the SATA interface circuit module and the bus interface circuit module.
Preferably, the industrial bus master station interface card further comprises a debugging interface circuit module;
the debugging interface circuit module is used for receiving debugging signals of external debugging equipment and sending the debugging signals to the CPU circuit module.
Preferably, the SATA interface circuit module includes a SATA hard disk.
Preferably, the industrial bus comprises a Profinet bus.
The invention also provides an industrial bus master station controller, which comprises display equipment, control equipment and the industrial bus master station interface card;
and the industrial bus master station interface card is in communication connection with the display equipment and the control equipment respectively.
The invention also provides an industrial bus system, which is characterized by comprising at least one industrial bus slave station and the industrial bus master controller;
the industrial bus master controller is in communication connection with the industrial bus slave station;
the industrial bus master controller is used for generating configuration data to be sent to the industrial bus slave station and analyzing the industrial bus data sent by the industrial bus slave station.
Preferably, the industrial bus system further comprises an upper computer;
the upper computer is in communication connection with the industrial bus master controller;
the industrial bus master controller is also used for receiving the configuration file sent by the upper computer and analyzing the configuration file into industrial bus data.
The positive progress effects of the invention are as follows:
the invention provides an industrial bus master station interface card, which integrates an SATA interface circuit module and a bus interface circuit module into a CPU circuit module, wherein the CPU circuit module carries out bus data interaction with an industrial bus slave station through the bus interface circuit module, and runs a bus protocol stack through an operating system of the SATA interface circuit module to analyze bus data, so that data reading and writing can be carried out on industrial bus slave station equipment and the industrial bus slave station can be configured, and the communication function with the industrial bus slave station equipment and the control function of the industrial bus slave station equipment are realized.
Drawings
Fig. 1 is a block diagram of an interface card of an industrial bus master station in this embodiment 1 of the present invention.
Fig. 2 is a schematic block diagram of an interface card of an industrial bus master station in embodiment 2 of the present invention.
Fig. 3 is a first structural diagram of the industrial bus system in the embodiment 4 of the present invention.
Fig. 4 is a second structural diagram of the industrial bus system in embodiment 4 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
Please refer to fig. 1, which is a block diagram of an interface card of an industrial bus master station in this embodiment. Specifically, the industrial bus master station interface card comprises a CPU circuit module 1, an SATA interface circuit module 2 and a bus interface circuit module 3; the CPU circuit module 1 is respectively connected with the SATA interface circuit module 2 and the bus interface circuit module 3 in a communication way.
The SATA interface circuit module 2 is used for storing system data of an operating system, and the operating system is used for operating a bus protocol stack; the bus interface circuit module 3 is used for performing bus data interaction with an industrial bus slave station; the CPU circuit module 1 is configured to parse bus data through a bus protocol stack.
Specifically, after the industrial bus master station interface card is powered on, each circuit module is powered on according to a preset power-on time sequence, and the power-on of the whole interface card system is completed. The SATA interface circuit module 2 stores system data of an operating system, and after the interface card system is powered on, the CPU circuit module 1 starts the operating system stored in the SATA interface circuit module 2. In an optional implementation manner, the Real Time Operating System (RTOS) is selected as the Operating System, and the Real Time Operating System has the characteristics of timely response and high reliability, and can improve the performance of the industrial bus master station. The real-time operating system may be selected from a real-time LINUX (UNIX-like operating system) system.
In an alternative embodiment, the bus interface circuit module 3 includes a 2-network communication interface and a corresponding network card circuit module. The data of the 2-way bus interface circuit module 3 is the same data. The network communication interface allows external industrial bus slave station equipment to be accessed through a network cable, and data of the industrial bus slave station equipment enters the CPU circuit module 1 through the network card circuit module; the CPU circuit module 1 is respectively in communication connection with the SATA interface circuit module 2 and the line interface circuit module 3, and reads and writes data of the SATA interface circuit module 2 and the line interface circuit module 3; the CPU circuit module 1 runs a bus Protocol stack (Protocol stack) program stored in the SATA interface circuit module 2, and analyzes bus data uploaded by the slave station of the industrial bus and simultaneously issues the bus data to the slave station of the industrial bus. The network communication interface may comprise an RJ45 network communication interface.
In another optional implementation manner, the network communication interface allows the upper computer device to access through a network cable, and the upper computer can configure the configuration file to the industrial bus master station through the network communication interface and can read data of the industrial bus master station through the network communication interface.
The embodiment provides an industrial bus master station interface card, an SATA interface circuit module and a bus interface circuit module are integrated into a CPU circuit module, the CPU circuit module performs bus data interaction with an industrial bus slave station through the bus interface circuit module, a bus protocol stack is operated through a real-time operating system of the SATA interface circuit module to analyze bus data, data reading and writing can be performed on industrial bus slave station equipment, the industrial bus slave station can be configured, and the communication function with the industrial bus slave station equipment and the control function of the industrial bus slave station equipment are achieved.
Example 2
As shown in fig. 2, the interface card of the industrial bus master station of this embodiment is a further improvement of embodiment 1, specifically:
in this embodiment, the industrial bus master station interface card further includes a power module 4; the power module 4 is used for providing electric energy for the CPU circuit module 1, the SATA interface circuit module 2 and the bus interface circuit module 3.
In an alternative embodiment, the industrial bus master station interface card further comprises a communication module 5; the communication module 5 is used for data interaction with external equipment; the CPU circuit module 1 is further configured to run a bus protocol stack through an operating system of the SATA interface circuit module 2 to analyze bus data sent by the external device and issue the bus data to the industrial bus slave station. Specifically, the external device may include an upper computer. The configuration software of the upper computer can realize the configuration of the address and the function of the industrial bus slave station, generate the configuration file and realize the data interaction with the master station interface card. The host computer carries out data interaction through communication module 5 and industrial bus main website interface card, and communication module 5 can adopt communication interfaces such as net gape or serial ports, and the configuration software of host computer transmits the configuration file for industrial bus main website interface card through communication module 5, can receive the data that industrial bus main website interface card uploaded simultaneously. The industrial bus master station interface card analyzes configuration file data loaded by upper computer configuration software into a bus data format through a bus protocol stack, and transmits the configuration file data to the industrial bus slave station equipment through a physical layer interface so as to obtain the address and data of the industrial bus slave station.
In another alternative embodiment, the operating system installed in the SATA interface circuit module 2 is further configured to run a bus configuration program; the bus configuration program is used for generating a bus configuration file; the CPU circuit module 1 is also used for analyzing the bus configuration file through the bus protocol stack and generating configuration data, and transmitting the configuration data to the industrial bus slave station through the bus interface circuit module 3.
In addition, the industrial bus master station interface card also comprises a control interface circuit module 6; the control interface circuit module 6 is used for receiving control instructions of external control equipment. The bus configuration program is also used for generating a bus configuration file according to the control instruction. Specifically, the control interface circuit module 6 includes one or more of USB and PS2, and the control interface circuit module 6 is used for connecting an input device such as a keyboard and a mouse.
In an alternative embodiment, the industrial bus master station interface card further comprises a display interface circuit module 7; the display interface circuit module 7 is used for receiving the display data sent by the CPU circuit module 1 and transmitting the display data to an external display device. Specifically, the display interface circuit module 7 includes one or more of HDMI, VGA, and DP.
In an optional embodiment, the industrial bus master station interface card further comprises a debugging interface circuit module 8; the debugging interface circuit module 8 is used for receiving debugging signals of external debugging equipment and sending the debugging signals to the CPU circuit module 1. Specifically, the debug interface circuit block 8 includes a Console interface. The Console interface can be used for serial debugging and printing.
In this embodiment, the SATA interface circuit module 2 includes a SATA hard disk and its related circuits. The SATA hard disk adopts a serial connection mode, has stronger error correction capability, improves the reliability of data transmission, and the serial interface also has the advantages of simple structure and hot plug support.
In an alternative embodiment, the industrial bus comprises a Profinet bus.
The embodiment provides an industrial bus master station interface card, an SATA interface circuit module and a bus interface circuit module are integrated into a CPU circuit module, the CPU circuit module performs bus data interaction with an industrial bus slave station through the bus interface circuit module, the CPU circuit module can receive a configuration file of an upper computer and analyze the configuration file into bus data through a bus protocol stack to be issued to an industrial bus slave station, and can also receive a control instruction of an external control device through the control interface circuit module and generate the configuration file to be issued to an industrial bus slave station, data reading and writing can be performed on the industrial bus slave station device, the industrial bus slave station device can be configured, and the communication function with the industrial bus slave station device and the control function of the industrial bus slave station device are achieved.
Example 3
The embodiment provides an industrial bus master controller, which includes a display device, a control device and an industrial bus master interface card of embodiment 1 or embodiment 2; and the industrial bus master station interface card is in communication connection with the display equipment and the control equipment respectively.
The embodiment provides an industrial bus master station controller, and by using the industrial bus master station interface card, data reading and writing can be performed on industrial bus slave station equipment, and the industrial bus slave station can be configured, so that a communication function with the industrial bus slave station equipment and a control function of the industrial bus slave station equipment are realized.
Example 4
Please refer to fig. 3, which is a first structural diagram of the industrial bus system in this embodiment. Specifically, the industrial bus system comprises at least one industrial bus slave station and the industrial bus master controller of embodiment 3; the industrial bus master controller is in communication connection with the industrial bus slave station; the industrial bus master controller is used for generating configuration data to be sent to the industrial bus slave station and analyzing the industrial bus data sent by the industrial bus slave station.
Please refer to fig. 4, which is a second structural diagram of the industrial bus system in this embodiment. In an optional embodiment, the industrial bus system further comprises an upper computer; the upper computer is in communication connection with the industrial bus master controller; the industrial bus master controller is also used for receiving the configuration file sent by the upper computer and analyzing the configuration file into industrial bus data.
The embodiment provides an industrial bus system, and by using the industrial bus master controller, the configuration file of the upper computer can be received and analyzed into bus data to be issued to the industrial bus slave station, the control instruction can be received and the configuration file can be generated to be issued to the industrial bus slave station, data reading and writing can be performed on the industrial bus slave station device, the industrial bus slave station device can be configured, and a communication function with the industrial bus slave station device and a control function of the industrial bus slave station device are realized.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (14)
1. An industrial bus master station interface card is characterized by comprising a CPU circuit module, an SATA interface circuit module and a bus interface circuit module;
the CPU circuit module is respectively in communication connection with the SATA interface circuit module and the bus interface circuit module;
the SATA interface circuit module is used for storing system data of an operating system, and the operating system is used for operating a bus protocol stack;
the bus interface circuit module is used for interacting bus data with the industrial bus slave station;
the CPU circuit module is used for analyzing bus data through the bus protocol stack.
2. The industrial bus master interface card of claim 1, further comprising a communication module;
the communication module is used for carrying out data interaction with external equipment;
the CPU circuit module is used for analyzing bus data sent by the external equipment through the bus protocol stack.
3. The industrial bus master station interface card of claim 1, wherein the operating system is further configured to run a bus configuration program;
the bus configuration program is used for generating a bus configuration file;
the CPU circuit module is used for analyzing the bus configuration file through the bus protocol stack and generating configuration data, and transmitting the configuration data to the industrial bus slave station through the bus interface circuit module.
4. The industrial bus master station interface card of claim 3, further comprising a control interface circuit module;
the control interface circuit module is used for receiving a control instruction of external control equipment;
the bus configuration program is further used for generating the bus configuration file according to the control instruction.
5. The industrial bus master station interface card of claim 4, wherein the control interface circuit module comprises one or more of USB, PS 2.
6. The industrial bus master station interface card of claim 1, further comprising a display interface circuit module;
the display interface circuit module is used for receiving the display data sent by the CPU circuit module and transmitting the display data to external display equipment.
7. The industrial bus master station interface card of claim 6, wherein the display interface circuit module comprises one or more of HDMI, VGA, DP.
8. The industrial bus master interface card of claim 1, further comprising a power module;
the power module is used for providing electric energy for the CPU circuit module, the SATA interface circuit module and the bus interface circuit module.
9. The industrial bus master station interface card of claim 1, further comprising a debug interface circuit module;
the debugging interface circuit module is used for receiving debugging signals of external debugging equipment and sending the debugging signals to the CPU circuit module.
10. The industrial bus master station interface card of claim 1, wherein the SATA interface circuit module comprises a SATA hard disk.
11. The industrial bus master station interface card of claim 1, wherein the industrial bus comprises a Profinet bus.
12. An industrial bus master controller, characterized in that it comprises a display device, a control device and an industrial bus master interface card according to any of claims 1-11;
and the industrial bus master station interface card is in communication connection with the display equipment and the control equipment respectively.
13. An industrial bus system comprising at least one industrial bus slave and an industrial bus master controller as claimed in claim 12;
the industrial bus master controller is in communication connection with the industrial bus slave station;
the industrial bus master controller is used for generating configuration data to be sent to the industrial bus slave station and analyzing the industrial bus data sent by the industrial bus slave station.
14. The industrial bus system of claim 13, further comprising an upper computer;
the upper computer is in communication connection with the industrial bus master controller;
the industrial bus master controller is also used for receiving the configuration file sent by the upper computer and analyzing the configuration file into industrial bus data.
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| CN202111490413.9A CN114281036A (en) | 2021-12-08 | 2021-12-08 | Industrial bus master station interface card, master station controller and system |
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| CN202111490413.9A CN114281036A (en) | 2021-12-08 | 2021-12-08 | Industrial bus master station interface card, master station controller and system |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008102649A (en) * | 2006-10-18 | 2008-05-01 | Meidensha Corp | Duplex system for programmable controller |
| CN101321104A (en) * | 2008-07-03 | 2008-12-10 | 宁波大学 | Intelligent control local area network |
| KR20090038709A (en) * | 2007-10-16 | 2009-04-21 | 주식회사 터보테크 | Apparatus for interface of high-speed digital network for nano controlling |
| CN103106160A (en) * | 2013-01-31 | 2013-05-15 | 中国航空无线电电子研究所 | Airborne environment serial advanced technology attachment (STAT) bus storage control system and control method thereof |
| CN103856494A (en) * | 2012-11-28 | 2014-06-11 | 德尔福电子(苏州)有限公司 | In-vehicle wireless control system based on DLNA |
| CN205158067U (en) * | 2015-12-08 | 2016-04-13 | 西安奇维科技股份有限公司 | Industrial test device based on ETX module |
| CN209168093U (en) * | 2019-01-12 | 2019-07-26 | 北京盛博协同科技有限责任公司 | A kind of Bussing connector based on 3U CPCI computer motherboard |
| CN112099407A (en) * | 2020-09-16 | 2020-12-18 | 苏州英威腾电力电子有限公司 | Motion controller based on Profinet bus |
| CN112398714A (en) * | 2020-10-22 | 2021-02-23 | 北京和利时系统工程有限公司 | Backboard bus master station, system and data communication method thereof |
| CN112583839A (en) * | 2020-12-22 | 2021-03-30 | 北京神经元网络技术有限公司 | Protocol conversion device, method, equipment and medium for Autbus bus and Hart bus |
-
2021
- 2021-12-08 CN CN202111490413.9A patent/CN114281036A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008102649A (en) * | 2006-10-18 | 2008-05-01 | Meidensha Corp | Duplex system for programmable controller |
| KR20090038709A (en) * | 2007-10-16 | 2009-04-21 | 주식회사 터보테크 | Apparatus for interface of high-speed digital network for nano controlling |
| CN101321104A (en) * | 2008-07-03 | 2008-12-10 | 宁波大学 | Intelligent control local area network |
| CN103856494A (en) * | 2012-11-28 | 2014-06-11 | 德尔福电子(苏州)有限公司 | In-vehicle wireless control system based on DLNA |
| CN103106160A (en) * | 2013-01-31 | 2013-05-15 | 中国航空无线电电子研究所 | Airborne environment serial advanced technology attachment (STAT) bus storage control system and control method thereof |
| CN205158067U (en) * | 2015-12-08 | 2016-04-13 | 西安奇维科技股份有限公司 | Industrial test device based on ETX module |
| CN209168093U (en) * | 2019-01-12 | 2019-07-26 | 北京盛博协同科技有限责任公司 | A kind of Bussing connector based on 3U CPCI computer motherboard |
| CN112099407A (en) * | 2020-09-16 | 2020-12-18 | 苏州英威腾电力电子有限公司 | Motion controller based on Profinet bus |
| CN112398714A (en) * | 2020-10-22 | 2021-02-23 | 北京和利时系统工程有限公司 | Backboard bus master station, system and data communication method thereof |
| CN112583839A (en) * | 2020-12-22 | 2021-03-30 | 北京神经元网络技术有限公司 | Protocol conversion device, method, equipment and medium for Autbus bus and Hart bus |
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