CN109189710A - A kind of multi-functional communications circuit and its communication means - Google Patents
A kind of multi-functional communications circuit and its communication means Download PDFInfo
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- CN109189710A CN109189710A CN201810792399.XA CN201810792399A CN109189710A CN 109189710 A CN109189710 A CN 109189710A CN 201810792399 A CN201810792399 A CN 201810792399A CN 109189710 A CN109189710 A CN 109189710A
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- Prior art keywords
- communication
- modbus
- mode
- plc
- ascii
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
- G06F13/4286—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
Abstract
It include RS-232 communication interface the present invention provides a kind of multi-functional communications circuit and its communication means, telecommunication circuit, for realizing the communication between touch screen and/or PLC by RS-232 communication protocol；MODBUS ASCII and/or MODBUS RTU communication interface, for realizing the communication between the communication between capacitance plate, and/or realization and PLC by ASCII mode or RTU mode.Compared with prior art, can be realized circuit board can be realized between capacitance plate communicate on the basis of, the communication being also able to achieve between touch screen and PLC, compatibility it is higher, substitutability is higher.
Description
Technical field
The present invention relates to a kind of multi-functional communications circuit and its communication means, are related to the communications field.
Background technique
In communication between the capacitance plate of the prior art, touch screen, circuit board and PLC, intelligence realizes capacitance plate and electricity
The communication between communication and PLC and touch screen between the plate of road, communication mode is single, cannot arbitrarily substitute, and realizes more efficient
The communication of energy.
Summary of the invention
The present invention provides a kind of multi-functional communications circuit and its communication means, has and can be realized circuit board can be with
On the basis of realizing communication between capacitance plate, the communication being also able to achieve between touch screen and PLC, compatibility is higher, alternative
The higher feature of property.
A kind of multi-functional communications circuit, which is characterized in that including,
RS-232 communication interface, for realizing the communication between touch screen and/or PLC by RS-232 communication protocol；
MODBUS ASCII and/or MODBUS RTU communication interface, for by ASCII mode or RTU mode realize with
Communication between capacitance plate, and/or realize the communication between PLC.
Further include multiple-pulse delivery outlet, including 10 axis, 14 axis or 28 axis pulses output, accordingly, is able to drive 5 groups, 7 groups
Or 14 groups of high-speed pulse outputs, frequency 100K.
A kind of multi-functional communications circuit communication method realizes that specific method includes based on above-mentioned telecommunication circuit,
Realize that the communication between touch screen (including graphic control panel), serial ports step-by-step are sent by RS-232 communication protocol
With reception byte；
Realize that the communication with capacitance plate, user's selection are wanted by MODBUS ASCII mode or MODBUS RTU mode
Mode, including serial communication parameter, all devices selection when configuring each controller, on a MODBUS network
Identical transmission mode and serial ports parameter；Selected ASCII mode or RTU mode is only applicable to the MODBUS network of standard, fixed
Each for the message section that justice continuously transmits on the MODBUS network of standard, and decide how information package into message
Domain and how to decode；MODBUS message is turned into the frame unrelated with serial transmission on off-gauge MODBUS network；
The communication between PLC is realized by RS-232 communication interface or MODBUS communication interface.
Compared with prior art, technical solution of the present invention can be realized circuit board and communicate can realize between capacitance plate
On the basis of, the communication being also able to achieve between touch screen and PLC, compatibility is higher, and substitutability is higher.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
Any feature disclosed in this specification (including abstract) unless specifically stated can or tool equivalent by other
There are the alternative features of similar purpose to be replaced.That is, unless specifically stated, each feature is a series of equivalent or similar characteristics
In an example.
A kind of multi-functional communications circuit, including,
RS-232 communication interface, for realizing the communication between touch screen and/or PLC by RS-232 communication protocol；
MODBUS ASCII and/or MODBUS RTU communication interface, for by ASCII mode or RTU mode realize with
Communication between capacitance plate, and/or realize the communication between PLC.
As one embodiment of the present invention, including RS-232 communication interface, MODBUS ASCII communication interface and
MODBUS RTU communication interface；It further include receiving the DC 24V NPN signal source of external detection element data such as；Power input connects
Mouth accesses DC 24V power supply, and internal conversion is handled after electric-controlled plate；All controls are calculated using meaning method chip processing program to issue.
Further include multiple-pulse delivery outlet, including 10 axis, 14 axis or 28 axis pulses output, accordingly, is able to drive 5 groups, 7 groups
Or 14 groups of high-speed pulse outputs, frequency 100K.
Under normal circumstances, automatic packaging mechanical equipment selects Eco-power PLC more, and this kind of PLC is up to four axis
Pulse output, the automatic packaging mechanical equipment more for some motors, four axis are not enough.It is extra to add arteries and veins
Die block walks the PLC pulse output that communication drives slave station.
A kind of multi-functional communications circuit communication method realizes that specific method includes based on above-mentioned telecommunication circuit,
Realize that the communication between touch screen (including graphic control panel), serial ports step-by-step are sent by RS-232 communication protocol
With reception byte；
Realize that the communication with capacitance plate, user's selection are wanted by MODBUS ASCII mode or MODBUS RTU mode
Mode, including serial communication parameter (baud rate, verification mode etc.), when configuring each controller, in a MODBUS
All devices on network select identical transmission mode and serial ports parameter；Selected ASCII mode or RTU mode is only applicable to
The MODBUS network of standard defines the message section continuously transmitted on the MODBUS network of standard each, and determines
How how information package at message field and is decoded；(as MAP and MODBUS Plus) on off-gauge MODBUS network
MODBUS message is turned into the frame unrelated with serial transmission；
The communication between PLC is realized by RS-232 communication interface or MODBUS communication interface.
For RS-232 communication means, although slower than by the parallel communications of byte (byte), serial ports can used
Data are received with another single line while single line sends data.It is very simple and can be realized telecommunication, and length can
Up to 1200 meters.Typically, serial ports is used for the transmission of ASCII character character.Communication is completed using 3 lines: (1) ground wire, and (2) are sent,
(3) it receives.Due to serial communication be it is asynchronous, port can send data on single line and on another single line receive number simultaneously
According to.Other lines are for shaking hands.The most important parameter of serial communication is baud rate, data bit, stop position and even-odd check.For two
A to carry out current port, these parameters must match.
Baud rate is the parameter of a measurement communication speed, it indicates the number of the bit of transmission each second.Such as 300 wave
Spy indicates that each second sends 300 bit.When we mention the clock cycle, we just refer to baud rate for example, if agreement needs
4800 baud rates are wanted, then clock is 4800Hz.This means that the sample rate of serial communication on the data line is 4800Hz.
Data bit is to measure the parameter of actual data bits in communication.When circuit board sends a packet, actual data
It will not be 8, the value of standard is 7 and 8.How the information that transmission is thought depending on you is set.For example, the ASCII character of standard
It is 0~127 (7).The ASCII character of extension is 0~255 (8).If data use simple text (standard ASCII character),
So each data packet uses 7 data.Each packet refers to a byte, including beginning/stop position, data bit and even-odd check
Position.Due to the case where actual data bits depend on the selection of communication protocol, and term " packet " refers to any communication.
Stop position is used for last position for indicating individually to wrap, and typical value is 1 and 2.Since data are on the transmission line
Timing, and each equipment has the clock of their own, it is likely that and there is slight difference in two equipment rooms in the communications
Step.Therefore stop position is not only to indicate the end of transmission, and provide circuit board correction clock synchronous chance.Suitable for stopping
The digit of stop bit is more, and the synchronous degrees of tolerance of different clocks is bigger, but data transmission rate is also slower simultaneously.
A kind of parity check bit simple error detection mode in serial communication.There are four types of error detection modes: even, odd, high and low.
Certainly also possible without check bit.Check bit (data bit subsequent one can be arranged in the case where for even summation odd, serial ports
Position), ensure that the data transmitted have even or odd logic high with a value.For example, if data are 011, for
Even parity check, check bit 0 guarantee that logically high digit is even number.If it is odd, check bit position 1, thus there are 3
Logic high.High-order and low level does not check data really, and simple set logic is high or logic low verifies.Make to touch in this way
Screen is able to know that the state of a position, and having an opportunity to judge whether there is noise jamming communication or whether transmit and receive data is
It is no asynchronous.
There are 2 kinds of transmission modes may be selected in ModBus system.The ability that this 2 kinds of transmission modes are communicated with capacitance plate is same
Deng.Should be depending on ModBus host (circuit board) used when selection, each ModBus system can only use one mode, not permit
Perhaps 2 kinds of modes are mixed.One mode is ASCII (U.S. information permuted code), and another mode is RTU (remote terminal equipment).
The desired mode of user's selection, including serial communication parameter (baud rate, verification mode etc.), are configuring each control
When device, all devices on a Modbus network must all select identical transmission mode and serial ports parameter.
For the communication between PLC, RS-232 MODBUS two ways is ok, and is mainly seen and the PLC that connect
Whether its function is had, one such mode can only be selected to be communicated.
Claims (3)
1. a kind of multi-functional communications circuit, which is characterized in that including,
RS-232 communication interface, for realizing the communication between touch screen and/or PLC by RS-232 communication protocol；
MODBUS ASCII and/or MODBUS RTU communication interface, for by ASCII mode or RTU mode is realized and capacitor
Communication between screen, and/or realize the communication between PLC.
2. multi-functional communications circuit according to claim 1, which is characterized in that further include multiple-pulse delivery outlet, including 10
Axis, 14 axis or 28 axis pulses output, accordingly, are able to drive 5 groups, 7 groups or 14 groups high-speed pulse outputs, frequency 100K.
3. a kind of multi-functional communications circuit communication method is realized, specific method based on telecommunication circuit of any of claims 1 or 2
Including,
Realize that the communication between touch screen, serial ports step-by-step send and receive byte by RS-232 communication protocol；
The communication with capacitance plate, the desired mould of user's selection are realized by MODBUS ASCII mode or MODBUS RTU mode
Formula, including serial communication parameter, when configuring each controller, all devices on a MODBUS network select phase
Same transmission mode and serial ports parameter；Selected ASCII mode or RTU mode is only applicable to the MODBUS network of standard, definition
Each of the message section continuously transmitted on the MODBUS network of standard, and decide how information package into message field
How to decode；MODBUS message is turned into the frame unrelated with serial transmission on off-gauge MODBUS network；
The communication between PLC is realized by RS-232 communication interface or MODBUS communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810792399.XA CN109189710A (en) | 2018-07-18 | 2018-07-18 | A kind of multi-functional communications circuit and its communication means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810792399.XA CN109189710A (en) | 2018-07-18 | 2018-07-18 | A kind of multi-functional communications circuit and its communication means |
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| Publication Number | Publication Date |
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| CN109189710A true CN109189710A (en) | 2019-01-11 |
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| CN201810792399.XA Pending CN109189710A (en) | 2018-07-18 | 2018-07-18 | A kind of multi-functional communications circuit and its communication means |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7734359B2 (en) * | 2005-11-14 | 2010-06-08 | General Electric Company | Systems and methods for capturing data within an intelligent electronic device |
| CN104400188A (en) * | 2014-10-27 | 2015-03-11 | 南京理工大学泰州科技学院 | Three-dimensional automatic welding system and welding control method thereof |
| CN105278437A (en) * | 2014-06-16 | 2016-01-27 | 上海宝信软件股份有限公司 | Modbus RTU/ASCII protocol realization method based on S7-300/400 PLC |
| CN205540716U (en) * | 2016-02-03 | 2016-08-31 | 北京长城华瑞科技有限公司 | System communication module |
-
2018
- 2018-07-18 CN CN201810792399.XA patent/CN109189710A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7734359B2 (en) * | 2005-11-14 | 2010-06-08 | General Electric Company | Systems and methods for capturing data within an intelligent electronic device |
| CN105278437A (en) * | 2014-06-16 | 2016-01-27 | 上海宝信软件股份有限公司 | Modbus RTU/ASCII protocol realization method based on S7-300/400 PLC |
| CN104400188A (en) * | 2014-10-27 | 2015-03-11 | 南京理工大学泰州科技学院 | Three-dimensional automatic welding system and welding control method thereof |
| CN205540716U (en) * | 2016-02-03 | 2016-08-31 | 北京长城华瑞科技有限公司 | System communication module |
Non-Patent Citations (1)
| Title |
|---|
| 赵威: "基于Modbus_RTU协议转换器的监控器网络查询控制系统", 《中国优秀硕士学位论文全文数据库信息科技辑（月刊）》 * |
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Application publication date: 20190111 |
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