CN206877132U - A kind of bus of digital control system is from station control - Google Patents
A kind of bus of digital control system is from station control Download PDFInfo
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- CN206877132U CN206877132U CN201621198840.4U CN201621198840U CN206877132U CN 206877132 U CN206877132 U CN 206877132U CN 201621198840 U CN201621198840 U CN 201621198840U CN 206877132 U CN206877132 U CN 206877132U
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Abstract
The utility model discloses a kind of bus of digital control system from station control, including：The main control chip and slave station communication chip of interconnection.Main control chip, for controlling slave station communication chip to be connected by Ethernet bus with main website and/or other slave stations.Slave station communication chip, for carrying out data interaction between main website and/or other slave stations.Wherein, main control chip and slave station communication chip are two independent units.Pass through scheme of the present utility model, add main control chip, reduce the workload of slave station communication chip, and main control chip is separately positioned on two different circuit boards from slave station communication chip, master control chip and slave station communication chip is divided into two independent units, improve antijamming capability of the whole bus from station control；And only connected between the two by HBI, improve data transmission efficiency；In addition, main control chip includes multiple input and output I/O interfaces, it is easy to the Function Extension of whole controller, enhances the compatibility of system.
Description
Technical field
It the utility model is related to fields of numeric control technique, more particularly to a kind of bus of digital control system is from station control.
Background technology
Digit Control Machine Tool belongs to key foundation equipment manufacture, is known as " industrial machine tool ", is widely used in automobile, aviation boat
My god, war industry and 3C manufacture etc. field.It reflects a manufacturing development degree of country, is to determine that a country exists
The high-quality precision and sophisticated technology of precision manufactureing achievement.Digital control system is Digit Control Machine Tool " brain ", decides performance, the work(of Digit Control Machine Tool
The key factors such as energy, reliability.
In digital control system, bus is in the bottom of equipment, there is that agreement is simple, fault-tolerant ability is strong, security is good, cost is low
The characteristics of, the substantial amounts of data of high-speed transfer between system and external device (ED) can not only be made, so as to meet the processing need of high-precision high-speed
Ask, and system can be simplified and be easy to extend.But for a long time, fieldbus is incompatible, each family debates endlessly, intercommunication and mutually behaviour
It is difficult to solve as problem, and some design defect is present.Based on above mentioned problem, field bus technique starts to turn to industrial real at present
When Ethernet.Ethernet bus technology has the following advantages that：(1) transmission speed is fast, and packet size is big, transmission range
It is long；(2) commodity ethernet component is used, it is cost-effective；(3) standard ethernet can be accessed, beneficial to realization " E nets are on earth "
Control integration target.But the Ethernet bus technology in digital control system is directly to be entered by communication module mostly at present
Communication between row main website and slave station, this communication structure poor compatibility, poor anti jamming capability, and Function Extension is not easy to,
Based on the problem, need person skilled badly and propose effective solution.
Utility model content
In order to solve the above problems, the utility model proposes a kind of bus of digital control system from station control, Neng Gouti
The compatibility and antijamming capability of Ethernet bus in high digital control system, and it is easy to Function Extension.
In order to achieve the above object, the utility model proposes a kind of bus of digital control system from station control, Mei Gezong
Line is connected after being connected in series from station control as a slave station, and one or more slave stations with main website；Each bus slave station
Controller includes：The main control chip and slave station communication chip of interconnection.
Main control chip, for controlling slave station communication chip to pass through Ethernet bus and main website and/or other slave station phases
Even.
Slave station communication chip, for carrying out data interaction between main website and/or other slave stations.
Wherein, main control chip and slave station communication chip are two independent units.
Alternatively, main control chip includes one or more expansion interfaces.
Alternatively, expansion interface includes handwheel interface.
Handwheel interface is used to be connected with outside handwheel equipment.
Alternatively, handwheel interface includes：Five axle control mouths, three multiplying power control mouths and two orthogonal encoder wiring
Mouthful.
Alternatively, expansion interface includes serial line interface, is connected for turning general-purpose serial bus USB interface chip with serial ports.
Alternatively, expansion interface includes signal acquisition interface.
Signal acquisition interface is connected by the first photoelectric coupled circuit with the output port of external equipment, for gathering external equipment
Real time data.
Alternatively, expansion interface includes signal output interface.
Signal output interface is connected by insulation blocking chip and the second photoelectric coupled circuit with the relay of external equipment, is used for
To relay output control signal, pass through Control external equipment.
Alternatively, slave station communication chip carries out data transfer using parallel connection HBI patterns and main control chip.
Alternatively, slave station communication chip pass sequentially through the first PHY chip and first network transformer and first with
Too network interface is connected；And pass sequentially through the second PHY chip and the second network transformer and the second Ethernet interface phase
Even.
Wherein, in the first Ethernet interface and the second Ethernet interface one be used as input interface, one connects as output
Mouthful.
Alternatively, when bus is from when station control is between main website and another slave station, input interface is connected with main website；
Output interface is connected with another slave station.
When bus is from when station control is between two slave stations, input interface is connected with an adjacent slave station；Output
Interface is connected with another adjacent slave station.
Alternatively, slave station communication chip is connected with EEPROM eeprom chip, for storing
Expandable mark language XML file；XML file is the descriptive file of slave station communication chip.
Alternatively, the address wire of slave station communication chip is respectively configured as the address of slave station internal memory.
The data wire of slave station communication chip is respectively configured as carrying out data transmission between adjacent main website and/or slave station.
The interrupt location of slave station communication chip is used for when master request and slave station progress data interaction, and letter is interrupted in triggering
Number, notice main control chip carries out the interaction of data.
Compared with prior art, the utility model includes：A kind of bus of digital control system is from station control, the bus slave station
Controller includes：The main control chip and slave station communication chip of interconnection.Main control chip, for controlling slave station communication chip to pass through
Ethernet bus is connected with main website and/or other slave stations.Slave station communication chip, for main website and/or other slave stations it
Between carry out data interaction.Wherein, main control chip and slave station communication chip are two independent units.Pass through side of the present utility model
Case, main control chip is added, reduce the workload of slave station communication chip, and main control chip and slave station communication chip are distinguished
It is arranged on two different circuit boards so that main control chip and slave station communication chip are divided into two independent units, improve
Antijamming capability of the whole bus from station control；And only connected between the two by HBI, improve data transmission efficiency；
In addition, main control chip includes multiple input and output I/O interfaces, it is easy to the Function Extension of whole controller, enhances the compatibility of system
Property.
Brief description of the drawings
The accompanying drawing in the utility model embodiment is illustrated below, the accompanying drawing in embodiment is to be used for this practicality newly
Type is further understood, and is used to explain the utility model together with specification, is not formed to scope of protection of the utility model
Limitation.
Fig. 1 is the bus of the digital control system of the utility model embodiment from station control overall structure diagram；
Fig. 2 is the slave station communication chip and main control chip connection diagram of the utility model embodiment；
Fig. 3 is the expansion interface schematic diagram of the main control chip of the utility model embodiment；
Fig. 4 is the photoelectric coupled circuit connection diagram of the utility model embodiment.
Embodiment
For the ease of the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings,
It can not be used for limiting the scope of protection of the utility model.
In order to achieve the above object, the utility model proposes a kind of bus of digital control system from station control, Mei Gezong
Line is connected after being connected in series from station control as a slave station, and one or more slave stations with main website；Each bus slave station
Controller includes：Main control chip 11 and slave station communication chip 12, as shown in Figure 1.
Main control chip 11, for controlling slave station communication chip 12 to pass through Ethernet bus and main website 10 and/or other
Slave station 20 is connected.Slave station communication chip 12, for carrying out data interaction between main website 10 and/or other slave stations 20.
Wherein, main control chip 11 and slave station communication chip 12 are two independent units.
In the utility model embodiment, in order to improve the antijamming capability of digital control system data transmission procedure, and strengthen
The compatibility of system, main control chip 11 is added on the basis of station control in original bus, the main control chip 11 with from
Communication chip 12 of standing has collectively constituted a kind of new bus from station control, receives the control command that main website is sent, and by institute
State control command and slave station communication chip 12 is transferred to by HBI patterns progress parallel data communication, wherein, slave station communication chip 12
It is connected with main website 10 and another adjacent slave station 20, or be connected with two other adjacent slave station.Slave station communication chip
12 receive control signal, and carry out data interaction according to the control signal and main website and/or slave station, so as to realize the numerical control machine height of bed
The high-precision smooth motion control of speed, and with three axles, four-axle linked, five axle control functions, automatic tool changer, automatic right can be achieved
The Machine-Tool Control function such as knife.
In the utility model embodiment, main control chip 11 is connected by parallel bus with slave station communication chip 12, jointly
A bus is formed from station control, as a slave node in bus, control chip 11 passes through with slave station communication chip 12
HBI patterns carry out parallel data communication, and slave station communication chip 12 can be controlled to realize master node and slave node, slave node
Data interaction between slave node.Application of the Ethernet bus technology in digital control system is effectively improved data
Transmission speed and stability.
In the utility model embodiment, main control chip 11 and slave station communication chip 12 are two independent units, total
Line divides double-decker from station control, one layer everywhere of main control chip and slave station communication chip, independently of each other, reduce each other it
Between signal interference, improve the Stability and veracity of control data.
In the utility model embodiment, main control chip 11 can be according to different application scenarios from slave station communication chip 12
Any chip that can implement is selected, is not limited for the concrete model, type and performance of above-mentioned two chip herein.Can
Selection of land, main control chip 11 can be STM32F407ZGT6；Slave station communication chip 12 can be ET1100.
Alternatively, slave station communication chip 12 carries out data transfer using parallel connection HBI patterns and main control chip.
In the utility model embodiment, two kinds and main control chip can be generally provided in existing slave station communication chip 12
11 modes being attached, it is that parallel interface connection (HBI) connects (SPI) with serial line interface respectively, in both connected modes
It is maximum with the transmission quantity of HBI parallel connections and transmission rate, so using HBI parallel forms and main control chip 11 (such as
STM32F407ZGT6) it is attached.Specifically, main control chip STM32F407ZGT6 uses FSMC interface driver HBI buses, with
Slave station communication chip ET1100 is connected, and carries out the transmission of data, and HBI buses are parallel data transmission, improve the interaction of data
Speed, communication are more convenient.
Alternatively, the address wire of slave station communication chip 12 is respectively configured as the address of slave station internal memory；Slave station communication chip 12
Data wire be respectively configured as carrying out data transmission between slave station internal memory；The interrupt location of slave station communication chip 12 is used for as master
When requirement of standing carries out data interaction with slave station, interrupt signal is triggered, notice main control chip 11 carries out the interaction of data.
In the utility model embodiment, below using main control chip as STM32F407ZGT6, slave station communication chip 12 is
Illustrated exemplified by during ET1100.HBI buses are divided into address port 121, FPDP 122, chip select terminal mouth 123, read/write and enabled
Port 124, interruptive port 125 and synchronous mode interruptive port 126, as shown in Figure 2.Slave station communication chip ET1100 address
From A0 to A14, totally 15 address wires, its content are the address for the slave station internal memory that needs configure for port；FPDP is from D0 to D15
Totally 16 data lines, for configuring the data of slave station memory address, carry out the parallel transmission of data；Slave station communication chip ET1100
Chip select terminal mouth/NE1 be used for choose whether to use this slave station chip as communication chip；Writing for slave station communication chip ET1100 is enabled
Port/NWE and main control chip STM32F407ZGT6 /NWE ports are connected, when needing that slave station communication chip ET1100 is carried out
During write order, this port is enabled；Slave station communication chip ET1100 reading enable port/NOE and main control chip STM32F407ZGT6
/ connection of NOE ports, when needing to carry out read command to slave station communication chip ET1100, enable this port；Slave station communication chip
ET1100 has interruptive port/IRQ, in communication cycle, when master request and slave station carry out data interaction, and slave station communication chip
ET1100 triggers interrupt signal, and notice main control chip STM32F407ZGT6 carries out the interaction of data；Slave station communication chip ET1100
With synchronizing signal/LATCH0_1 ,/LATCH1_1 ports, in pattern synchronizing cycle, each slave station need to synchronously enter holding for line command
OK, this signal is controlled by main website.
When main website outgoing event occurs, interrupt requests IRQ interrupt signals are produced, under SM patterns：Main control chip
STM32F407ZGT6 enters interrupt processing function, and triggering reads enable signal, passes through HBI from slave station communication chip ET1100 internal memories
Data are handled by reading data in the application, and gathered data, then main control chip triggering write enable signal,
Place data into and send buffering area for main website reading.In a dc mode, into interrupt processing function and Sync0 signals are waited, it is main
Control chip STM32F407ZGT6 triggerings and read signal, read data and handled, and scan external signal, wait Sync1 letters
Number, triggering is write enabled, places data into transmission buffering area, waits main website to read data.The bus of the utility model embodiment from
Station control can be run under SM patterns.
Alternatively, slave station communication chip 12 passes sequentially through the first PHY chip 127 and first network transformer 128
It is connected with the first Ethernet interface 21；And pass sequentially through the second PHY chip and the second network transformer and second with
Too network interface 22 is connected, as shown in Figure 2.
In the utility model embodiment, PHY chip 127, network transformer 128 and slave station input/output interface
To select any chip that can implement according to different application scenarios, herein for the concrete model of said chip, type and
Performance is not limited.In the utility model embodiment, the first PHY chip and the second PHY chip can be with
Identical chip is selected, first network transformer and the second network transformer can select identical transformer, the
One Ethernet interface and the second Ethernet interface can select identical interface.Alternatively, the PHY chip 127 can be
KS87216L chips, network transformer 128 can be H1102, and slave station input interface 21 and slave station output interface 22 may each be
Network interface RJ45.Alternatively, ET1100 is connected by PHY chip KS8721BL, network transformer H1102 with network interface RJ45, PHY cores
Piece realizes data encoding, decoding and transmitting-receiving, and by the ethernet physical layer interface of standard, i.e. network interface RJ45 carries out the friendship of data
Mutually.
In the utility model embodiment, input block and output between main control chip 11 and outside input output equipment
Unit is separated from each other, and avoids interfering for input signal and output signal, and can be connected on main control chip 11 multigroup
Input block and output unit, the input for carrying out data from different input-output equipment interact with output.
Alternatively, slave station communication chip 12 is connected with EEPROM eeprom chip, for depositing
Store up expandable mark language XML file；XML file is the descriptive file of slave station communication chip.
In the utility model embodiment, slave station communication chip ET1100 can use its pin G11 and F11 conducts
EEPROM communicates, and is connected with eeprom chip, for storing XML file, its communication protocol can be I2C.
Alternatively, main control chip 11 includes one or more expansion interfaces.
, can on main control chip 11 in order to increase the extendable functions of main control chip 11 in the utility model embodiment
To be reserved with one or more expansion interfaces, alternatively, the expansion interface can include：Handwheel interface 111, serial line interface 112,
Signal acquisition interface 113 and signal output interface 114, as shown in Figure 3.Each expansion interface is introduced separately below.
Alternatively, expansion interface includes handwheel interface 111.Handwheel interface 111 is used to be connected with outside handwheel equipment 40.
In the utility model embodiment, in order to realize Function Extension, handwheel interface can be reserved on main control chip 11
111, the handwheel interface 111 is used to be connected with outside handwheel equipment 40.By taking STM32F407ZGT6 chips as an example,
STM32F407ZGT6 timer has encoder modes, by configuring related register, it is possible to achieve to the outer of external connection
Portion's handwheel equipment 40 carries out handwheel counting.
Alternatively, handwheel interface includes：Five axle control mouths, three multiplying power control mouths and two orthogonal encoder wiring
Mouthful.
In the utility model embodiment, handwheel interface can include five axles：X、Y、Z、A、B；Three multiplying powers：X1、X10、
X00；Orthogonal encoder line end：PULES-GEN-A、PULES-GEN-B；Switch：PAUSE/SL.Each terminals by optocoupler every
From so that external equipment can not have influence on the steady operation of main control chip 11, and alternatively, the light-coupled isolation can use EL357N
Chip realizes that its specific wiring diagram is as shown in figure 4, the connected mode of each interface can pass through embodiment electricity in handwheel interface
Road is attached.Handwheel is powered for 5V, and connection terminal can be first 25 needle connectors of DB.
Alternatively, expansion interface includes serial line interface 112, for turning general-purpose serial bus USB interface chip phase with serial ports
Even.
In the utility model embodiment, main control chip 11 can also include serial line interface 112, for turning general with serial ports
Serial bus USB interface chip is connected, and the USB interface chip is connected with USB interface 50.
In the utility model embodiment, main control chip 11 still illustrates by taking STM32F407ZGT6 as an example,
The STM32F407ZGT6 pin of serial ports 1 can be used as serial line interface 112, be connected by USB interface chip with USB interface 50, this
USB interface 50 facilitates the debugging of board, and main control chip 11 can be by USB come programming program so that the programming of file is simpler
It is single easy-to-use.Alternatively, USB interface chip can be CH340G chips, and this chip is that serial ports turns USB chips.
Alternatively, expansion interface includes signal acquisition interface 113.
Signal acquisition interface 113 is connected by the first photoelectric coupled circuit with the output port of external equipment 60, outer for gathering
The real time data of portion's equipment 60.
In the utility model embodiment, in order to obtain external equipment 60 in time, the relevant information of such as Digit Control Machine Tool, such as
Status information, environmental information etc., main control chip 11 can also setting signal acquisition interface 113, for entering line number to external equipment 60
According to collection.In order to avoid interference of the external equipment 60 to main control chip 11, connect between signal acquisition interface 113 and external equipment
It is connected to the first photoelectric coupled circuit.Alternatively, first photoelectric coupled circuit can use EL357N chips.The front end of EL357N chips can be with
Three resistance are connected to, when voltage is less than 18v, optocoupler does not work, when voltage range exists>During 18v, input letter can be just collected
Number, and pass through diode protection EL357N chips.
Alternatively, expansion interface includes signal output interface 114.
Signal output interface is connected by insulation blocking chip and the second photoelectric coupled circuit with the relay of external equipment 60, is used
In to relay output control signal, pass through Control external equipment 60.
In the utility model embodiment, because main control chip 11 can also send control information to external equipment 60, because
This, main control chip 11 can also include signal output interface 114.In order to avoid interference of the external equipment 60 to main control chip 11,
Two groups of insulation blocking chips and one group of photoelectric coupled circuit can be sequentially connected between signal output interface 114 and external equipment 60,
The second i.e. above-mentioned photoelectric coupled circuit.Alternatively, the insulation blocking chip can use MC1413 chips, and the second photoelectric coupled circuit also may be used
To use EL357N chips.The output end of EL357N chips is+24v, driving relay output.
Alternatively, main control chip 11 also includes power interface 115.
In the utility model embodiment, power interface 115 is connected with the power supply of main control chip 11, power interface
115 can be pluggable terminals interface, and can set power supply indicator, and power supply indicator maintains Chang Liangzhuan after plant-grid connection
State is to indicate power on.
Compared with prior art, the utility model includes：A kind of bus of digital control system is from station control, the bus slave station
Controller includes：The main control chip and slave station communication chip of interconnection.Main control chip, for controlling slave station communication chip to pass through
Ethernet bus is connected with main website and/or other slave stations.Slave station communication chip, for main website and/or other slave stations it
Between carry out data interaction.Wherein, main control chip and slave station communication chip are two independent units.Pass through side of the present utility model
Case, main control chip is added, reduce the workload of slave station communication chip, and main control chip and slave station communication chip are distinguished
It is arranged on two different circuit boards so that main control chip and slave station communication chip are divided into two independent units, improve
Antijamming capability of the whole bus from station control；And only connected between the two by HBI, improve data transmission efficiency；
In addition, main control chip includes multiple input and output I/O interfaces, it is easy to the Function Extension of whole controller, enhances the compatibility of system
Property.
It should be noted that embodiment described above be for only for ease of it will be understood by those skilled in the art that, and
Limitation the scope of protection of the utility model is not used in, on the premise of utility model design of the present utility model is not departed from, ability
Any obvious replacement and improvement that field technique personnel are made to the utility model etc. is in protection of the present utility model
Within the scope of.
Claims (10)
1. a kind of bus of digital control system is from station control, it is characterised in that the bus includes from station control：It is connected with each other
Main control chip and slave station communication chip；
The main control chip, for control the slave station communication chip by Ethernet bus and main website and/or it is other from
Stand and be connected；
The slave station communication chip, for carrying out data interaction between the main website and/or other slave stations；
Wherein, the main control chip and the slave station communication chip are two independent units.
2. the bus of digital control system as claimed in claim 1 is from station control, it is characterised in that the main control chip includes one
Individual or multiple expansion interfaces.
3. the bus of digital control system as claimed in claim 2 is from station control, it is characterised in that the expansion interface includes hand
Take turns interface；
The handwheel interface is used to be connected with outside handwheel equipment.
4. the bus of digital control system as claimed in claim 3 is from station control, it is characterised in that the handwheel interface includes：
Five axle control mouths, three multiplying power control mouths and two orthogonal encoder connection jaws.
5. the bus of digital control system as claimed in claim 2 is from station control, it is characterised in that the expansion interface includes string
Line interface, it is connected for turning general-purpose serial bus USB interface chip with serial ports.
6. the bus of digital control system as claimed in claim 2 is from station control, it is characterised in that the expansion interface includes letter
Number acquisition interface；
The signal acquisition interface is connected by the first photoelectric coupled circuit with the output port of external equipment, for gathering the outside
The real time data of equipment.
7. the bus of digital control system as claimed in claim 6 is from station control, it is characterised in that the expansion interface includes letter
Number output interface；
The signal output interface is connected by insulation blocking chip and the second photoelectric coupled circuit with the relay of the external equipment,
For to the relay output control signal, passing through external equipment described in the Control.
8. the bus of digital control system as claimed in claim 1 is from station control, it is characterised in that the slave station communication chip is adopted
With parallel connection HBI patterns data transfer is carried out with the main control chip.
9. the bus of digital control system as claimed in claim 1 is from station control, it is characterised in that the slave station communication chip according to
It is secondary to be connected by the first PHY chip and first network transformer with the first Ethernet interface；And pass sequentially through second
PHY chip and the second network transformer are connected with the second Ethernet interface；
Wherein, in first Ethernet interface and second Ethernet interface one be used as input interface, a conduct is defeated
Outgoing interface.
10. the bus of digital control system as claimed in claim 9 is from station control, it is characterised in that
When the bus is from when station control is between the main website and another slave station, the input interface and the main website
It is connected；The output interface is connected with another described slave station；
When the bus is from when station control is between two slave stations, the input interface is connected with an adjacent slave station；
The output interface is connected with another adjacent slave station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621198840.4U CN206877132U (en) | 2016-11-07 | 2016-11-07 | A kind of bus of digital control system is from station control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621198840.4U CN206877132U (en) | 2016-11-07 | 2016-11-07 | A kind of bus of digital control system is from station control |
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| CN206877132U true CN206877132U (en) | 2018-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113176745A (en) * | 2021-04-19 | 2021-07-27 | 珞石（北京）科技有限公司 | Terminal interaction device of adaptive cooperative robot |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113176745A (en) * | 2021-04-19 | 2021-07-27 | 珞石（北京）科技有限公司 | Terminal interaction device of adaptive cooperative robot |
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