CN105072708A - Intelligent module for realizing local area network WIFI (Wireless Fidelity) communication based on PLC (Programmable Logic Controller) backplane bus protocol - Google Patents
Intelligent module for realizing local area network WIFI (Wireless Fidelity) communication based on PLC (Programmable Logic Controller) backplane bus protocol Download PDFInfo
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- CN105072708A CN105072708A CN201510476320.9A CN201510476320A CN105072708A CN 105072708 A CN105072708 A CN 105072708A CN 201510476320 A CN201510476320 A CN 201510476320A CN 105072708 A CN105072708 A CN 105072708A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The invention discloses an intelligent module for realizing local area network WIFI (Wireless Fidelity) communication based on a PLC (Programmable Logic Controller) backplane bus protocol. The intelligent module comprises a CPU (Central Processing Unit), wherein the CPU is an SJ-2000 series CPU; the output end of the CPU is connected with a WIFI intelligent module; the WIFI intelligent module is connected with other modules through an extended bus; the WIFI intelligent module comprises a MCU (Microprogrammed Control Unit) module, a WIFI module and a CPLD (Complex Programmable Logic Device) module; the MCU module is communicated with the WIFI module through a USART (Universal Synchronous Asynchronous Receiver Transmitter) serial port, and is connected with the CPLD module through an FMSC (Flexible Static Memory Controller) parallel port; the CPLD module comprises an FSMC_IF module, a Bus200 module and a S200_bus module; the front end of the CPLD module is connected with a front bus; the output end of the CPLD module is connected with the extended bus; and the CPLD module is connected with an RAM (Random Access Memory), and is taken as a shared memory between the MCU module and the CPLD module. Through adoption of the intelligent module, wireless communication between an upper computer and a PLC system is realized on a S7-200/AU7-200 system via WIFI, so that the overall resolution cost is low; convenient is brought to use for a user; only one slot of the CPU is occupied; wireless WIFI communication can be realized through simple setting; and applicability to more application occasions can be realized.
Description
Technical field
The present invention relates to industrial automation PLC field, specifically a kind of intelligent object communicated based on PLC core bus protocol realization local WIFI.
Background technology
Siemens PLC Chinese industrial control field because of its be simple and easy to, reliability is high, cost is low and be subject to extensive use, but the communication modes of S7-200 system conventional only has the wire communication mode such as RS485 or Ethernet, but a lot of commercial Application is on-the-spot, do not allow wiring or larger to wired interference ratio in environment, under these rugged environments, to real-time monitoring data or control S7-200/AU7-200 system, traditional communication modes is just no longer applicable, limit the practical occasion of system, need improvement badly.
Summary of the invention
The object of the present invention is to provide a kind of on the basis of original system, the wireless WIFI communication between the upper computer softwares such as Step7MicroWin, WELLVIEW and S7-200/AU7-200 system can be realized easily, S7-200/AU7-200 system is allowed to meet the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI of the application scenario of requirements at the higher level, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
Based on the intelligent object that PLC core bus protocol realization local area network (LAN) WIFI communicates, comprise CPU, described CPU is that the output of SJ-200 series CPU, CPU is connected with WIFI intelligent object, and WIFI intelligent object is by bus and other model calling after expansion; Described WIFI intelligent object comprises MCU module, WIFI module and CPLD module, and described MCU module, by USART serial ports and WIFI module communication, by FMSC parallel port and CPLD model calling, is also connected with toggle switch; Described CPLD module comprises FSMC_IF module, Bus200 module and S200_bus module.
As the further scheme of the present invention: the front end of described CPLD module connects front bus.
As the present invention's further scheme: the output of described CPLD module connects the rear bus of expansion.
As the present invention's further scheme: described CPLD model calling one block RAM, as the shared drive between MCU module and CPLD module.
As the present invention's further scheme: the S200_bus module of described CPLD inside modules has expansion bus function, realize WIFI intelligent object and other model calling, other modules comprise the first module, the second module ..., the 6th module.
As the present invention's further scheme: the Bus200 module of described CPLD inside modules has front bus functionality, realize the communication between WIFI intelligent object and SJ-200 series CPU.
As the present invention's further scheme: the FSMC_IF module in charge of described CPLD inside modules realizes the sequential processing of MCU module and CPLD inside modules exchanges data.
As the present invention's further scheme: described MCU module is responsible for the modules configuring and manage in CPLD module.
As the present invention's further scheme: described MCU module is responsible for the process of communication between WIFI module and communication data.
Compared with prior art, the invention has the beneficial effects as follows: the present invention can realize the wireless telecommunications between host computer and PLC system by WIFI in S7-200/AU7-200 system, conceptual solutions cost is low, user is easy to use, intelligent object of the present invention is only needed to be connected on the CPU of PLC system, intelligent object of the present invention takies a slot of CPU, carry out simple setting and just can realize wireless WIFI communication, meet more application scenario, the scope of application is wider, has wide market prospects.
Accompanying drawing explanation
Fig. 1 is using state schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Wherein, 1-PC host computer; 2-wireless router; 3-WIFI intelligent object; 4-CPU; 5-first module; 6-second module; 7-the 6th module; 8-MCU module; 9-toggle switch; 10-FSMC_IF module; 11-Bus200 module; 12-RAM; 13-S200_bus module; 14-USART serial ports; 15-FSMC parallel port; Bus before 16-; Bus after 17-expansion; 18-WIFI module; 19-CPLD module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 ~ 2, in the embodiment of the present invention, a kind of intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI, comprise CPU4, described CPU4 is SJ-200 series CPU, the output of CPU4 is connected with WIFI intelligent object 3, and WIFI intelligent object 3 is by bus 17 after expansion and other model calling; Described WIFI intelligent object 3 comprises MCU module 8, WIFI module 18 and CPLD module 19, and described MCU module 8, by USART serial ports 14 and WIFI module 18 communication, is connected with CPLD module 19 by FMSC parallel port 15, is also connected with toggle switch 9; Described CPLD module 19 comprises FSMC_IF module 10, Bus200 module 11 and S200_bus module 13.
The front end of described CPLD module 19 connects front bus 16.
The output of described CPLD module 19 connects the rear bus 17 of expansion.
Described CPLD module 19 connects a block RAM 12, as the shared drive between MCU module 8 and CPLD module 19.
The S200_bus module 13 of described CPLD module 19 inside has expansion bus function, realizes WIFI intelligent object 3 and other model calling, other modules comprise the first module 5, second module 6 ..., the 6th module 7.
The Bus200 module 11 of described CPLD module 19 inside has front bus functionality, realizes the communication between WIFI intelligent object 3 and SJ-200 series CPU4.
The FSMC_IF module 10 of described CPLD module 19 inside is responsible for the sequential processing realizing MCU module 8 and CPLD module 19 internal exchange of data.
Described MCU module 8 is responsible for the modules in configuration and management CPLD module 19.
Described MCU module 8 is responsible for the process of communication between WIFI module 18 and communication data.
Operation principle of the present invention: PC host computer 1 and wireless router 2 realize mutual communication, by WIFI wireless telecommunications between wireless router and WIFI intelligent object 3, WIFI intelligent object 3 realizes communication by front bus 16 and SJ-200 series CPU, WIFI intelligent object 3 by bus 17 after expansion successively with the first module 5, second module 6 ... 6th module 7 connects, and module installation is arranged according to actual user demand.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (8)
1. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI, it is characterized in that: comprise CPU(4), described CPU(4) be SJ-200 series CPU, CPU(4) output is connected with WIFI intelligent object (3), and WIFI intelligent object (3) is by bus (17) after expansion and other model calling; Described WIFI intelligent object (3) comprises MCU module (8), WIFI module (18) and CPLD module (19), described MCU module (8) is by USART serial ports (14) and WIFI module (18) communication, be connected with CPLD module (19) by FMSC parallel port (15), be also connected with toggle switch (9); Described CPLD module (19) comprises FSMC_IF module (10), Bus200 module (11) and S200_bus module (13).
2. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, it is characterized in that, the front end of described CPLD module (19) connects front bus (16), and the output of CPLD module (19) connects the rear bus (17) of expansion.
3. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, it is characterized in that, described CPLD module (19) connects a block RAM (12), as the shared drive between MCU module (8) and CPLD module (19).
4. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, it is characterized in that, the S200_bus module (13) that described CPLD module (19) is inner has expansion bus function, realize WIFI intelligent object (3) and other model calling, other modules comprise the first module (5), the second module (6) ..., the 6th module (7).
5. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, it is characterized in that, the Bus200 module (11) that described CPLD module (19) is inner has front bus functionality, realizes WIFI intelligent object (3) and the serial CPU(4 of SJ-200) between communication.
6. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, it is characterized in that, the FSMC_IF module (10) that described CPLD module (19) is inner is responsible for the sequential processing realizing MCU module (8) and CPLD module (19) internal exchange of data.
7. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, is characterized in that, described MCU module (8) is responsible for the modules in configuration and management CPLD module (19).
8. the intelligent object communicated based on PLC core bus protocol realization local area network (LAN) WIFI according to claim 1, is characterized in that, described MCU module (8) is responsible for communication between WIFI module (18) and the process of communication data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510476320.9A CN105072708A (en) | 2015-08-06 | 2015-08-06 | Intelligent module for realizing local area network WIFI (Wireless Fidelity) communication based on PLC (Programmable Logic Controller) backplane bus protocol |
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| CN201510476320.9A CN105072708A (en) | 2015-08-06 | 2015-08-06 | Intelligent module for realizing local area network WIFI (Wireless Fidelity) communication based on PLC (Programmable Logic Controller) backplane bus protocol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018149361A1 (en) * | 2017-02-17 | 2018-08-23 | 中兴通讯股份有限公司 | Method implementing out-of-band management, device, and data storage medium |
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| CN103217963A (en) * | 2013-04-25 | 2013-07-24 | 四川长虹电器股份有限公司 | General intelligent housing system |
| CN103676877A (en) * | 2013-12-12 | 2014-03-26 | 苏州市职业大学 | Intelligent power supply control device based on PLC and Wifi |
| CN203786511U (en) * | 2014-04-21 | 2014-08-20 | 深圳市华茂欧特科技有限公司 | Module for increasing capability of PLC expansion module |
| CN204287951U (en) * | 2014-12-30 | 2015-04-22 | 深圳市华茂欧特科技有限公司 | Based on the intelligent slave station module of standard Modbus_RTU bus protocol expansion polymorphic type I/O module |
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- 2015-08-06 CN CN201510476320.9A patent/CN105072708A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217963A (en) * | 2013-04-25 | 2013-07-24 | 四川长虹电器股份有限公司 | General intelligent housing system |
| CN103676877A (en) * | 2013-12-12 | 2014-03-26 | 苏州市职业大学 | Intelligent power supply control device based on PLC and Wifi |
| CN203786511U (en) * | 2014-04-21 | 2014-08-20 | 深圳市华茂欧特科技有限公司 | Module for increasing capability of PLC expansion module |
| CN204287951U (en) * | 2014-12-30 | 2015-04-22 | 深圳市华茂欧特科技有限公司 | Based on the intelligent slave station module of standard Modbus_RTU bus protocol expansion polymorphic type I/O module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018149361A1 (en) * | 2017-02-17 | 2018-08-23 | 中兴通讯股份有限公司 | Method implementing out-of-band management, device, and data storage medium |
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