CN208399953U - A kind of network type I/O control device - Google Patents
A kind of network type I/O control device Download PDFInfo
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- CN208399953U CN208399953U CN201821079797.9U CN201821079797U CN208399953U CN 208399953 U CN208399953 U CN 208399953U CN 201821079797 U CN201821079797 U CN 201821079797U CN 208399953 U CN208399953 U CN 208399953U
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Abstract
The utility model discloses a kind of network type I/O control devices, including at least one I/O expansion component, and the I/O expansion component includes telecommunication circuit, I/O interface module, network communication module and master controller；The master controller is connect with I/O interface module and network communication module respectively；The network communication module is connect for I/O expansion component with external digital control system；The I/O interface module is connect for I/O expansion component with peripheral equipment；Wherein, an I/O expansion component is connect with external digital control system, and the I/O expansion component and other I/O expansion components are interconnected by network communication module, realizes external digital control system and several I/O expansion component interactions.The utility model applies to bus network in high performance network type I/O control device.IO control device can meet the application of logic control, the data processing of process control and communication networking etc. extensively.
Description
Technical field
The utility model relates to the peripheral IO control fields of numerically-controlled machine tool, and in particular to a kind of network type I/O control device.
Background technique
As industrial automation is in the propulsion of China, industrial upgrading cry is increasingly strong, and industrial upgrading needs by a relatively large margin
Industrial automation level is promoted, artificial participation is reduced, reduces cost of labor.Connection is affiliated to various in industry spot IO bus
Slave station equipment node will be more and more.Therefore, also more and more to the data processing amount of IO bus, to influence whether IO bus
Instruction response speed.
And in traditional field bus control system, IO exports the limitation due to circuit structure and control mode, Wu Fashi
The quick response output of existing IO.It is configured in face of various numerically-controlled machine tools of different specifications and sizes and its diversified peripheral equipment,
Traditional scheme I/O port being all integrated on digital control system main circuit board increasingly shows its limitation.Encountering lathe will increase
The I O point quantity limitation of the system integration is suffered from when adding the I O point of peripheral unit control and cannot achieve.
Utility model content
In order to overcome circuit structure and control mode institute restriction technologies defect of the above-mentioned I/O control module by digital control system, this
Utility model provides a kind of network type control device, structure is simple, realize digital control system IO control points quick dilatation and
Control response timeliness is high.
To solve the above-mentioned problems, the utility model is achieved by following technical scheme:
A kind of network type I/O control device described in the utility model, including at least one I/O expansion component, the I/O expansion
Component includes I/O interface module, network communication module and master controller；
The master controller is connect with I/O interface module and network communication module respectively；
The network communication module is connect for I/O expansion component with external digital control system；
The I/O interface module is connect for I/O expansion component with peripheral equipment；
Wherein, an I/O expansion component is connect with external digital control system, which passes through with other I/O expansion components
Network communication module connection, realizes external digital control system and several I/O expansion component interactions.
Further, the network communication module includes:
At least one set of network LAN interfaces, the network LAN interfaces include LAN1 input interface and LAN2 output interface；
Communicating circuit, one end connect network LAN interfaces, and the other end connects master controller.
Further, the network communication module uses RJ45 network interface, connects two I/O expansion components by cable.
Further, the master controller is interacted by network communication module with the external world.
Further, the I/O interface module includes IO input circuit, protection circuit, isolation circuit and I/O connector；Institute
IO input circuit, protection circuit and isolation circuit is stated to be connected between master controller and I/O connector.
Further, the master controller uses MCU module, and the MCU module of each I/O expansion component is provided with independence
Module's address.
Further, the I/O control device is provided with the power supply circuit connecting with I/O expansion component.
Further, the communicating circuit includes integrated circuit U2A, row needle CON2, power vd D33, ESD protector
D17A, Transient Suppression Diode group, several resistance and several capacitors.
The Transient Suppression Diode group includes inhibiting diode D18A, inhibiting diode D19A, inhibit diode D20A；
The resistance includes resistance R5A, resistance R6A, resistance R7A, resistance R8A, build-out resistor SA19 and build-out resistor SA20；The electricity
Holding includes capacitor C7A and capacitor C8A；
Specifically, the integrated circuit U2A uses MAX3485 chip, and 1 port (RO) is that RXD receives data terminal, 2 ends
Mouth (RE) is connected to 3 ports (DE), 4 ports (DI) is TXD sending data end, 8 ports connect power vd D33,5 ports are earth polar
Ground connection；
One end of the 6 ports connection resistance R8A of integrated circuit U2A, the other end of resistance R8A are connect with power vd D33；Collection
At one end of the 7 ports connection resistance R5A of circuit U 2A, the other end ground connection of resistance R5A；The resistance R4A and row's needle CON2 string
Connection, resistance R4A are connect with 7 ports of integrated circuit U2A, and row needle CON2 is connect with 6 ports of integrated circuit U2A；
One end of resistance R6A is connect with 7 ports of integrated circuit U2A, and the other end of resistance R6A is with ESD protector D17A's
First port connection；One end of resistance R7A is connect with 6 ports of integrated circuit U2A, the other end and ESD protector of resistance R7A
The second port of D17A connects, the third port ground connection of ESD protector D17A；
One end of build-out resistor SA19 is connect with resistance R6A, and the other end of build-out resistor SA19 is separately connected network LAN and connects
The port COMTX/B of mouth and the other end ground connection of inhibition diode D18A, inhibition diode D18A；The one of build-out resistor SA20
End is connect with resistance R7A, and the other end of build-out resistor SA20 is separately connected the port COMRX/A and the inhibition two of network LAN interfaces
The other end of pole pipe D20A, inhibition diode D20A are grounded；
Inhibit one end matching connection resistance SA19 of diode D19A, inhibits one end matching connection resistance of diode D19A
SA20；One end of capacitor C8 and the port COMTX/B of network LAN interfaces connect, the other end ground connection of capacitor C8；The one of capacitor C7
End is connect with the port COMRX/A of network LAN interfaces, and the other end of capacitor C7 is connected on the route of capacitor C8 ground connection.
Further, the IO input circuit includes Light-emitting diode LED 31, NPN type triode, resistance R84, resistance
R85 and toggle switch S31；
2 ports of the toggle switch connect I/O interface device, which is input source；1 port of toggle switch is that NPN is defeated
Enter end, 3 ports of toggle switch are PNP input terminal；Toggle switch S31 can connect the input of NPN signal when connecting 1 port, directly
It is output on the optocoupler of master controller；It is PNP input when connecting 3 port, the electricity of NPN is converted signals by conversion circuit
It is flat, then input to the optocoupler of master controller；
The just extremely signal output end of the Light-emitting diode LED 31, connects the optocoupler of master controller；Light emitting diode
1 port of the cathode connection toggle switch of LED31；The collector C and Light-emitting diode LED 31 of the NPN type triode are just
Pole connection；The base stage B of NPN type triode and 3 ports of toggle switch connect, resistance of also having connected between base stage B and 3 ports
R84；Series resistance R85 between the base stage B and emitter E of NPN type triode, the emitter E ground connection of NPN type triode.
Compared with prior art, the utility model has the beneficial effects that
The utility model applies to bus network in high performance network type I/O control device.The IO controls device can be wide
The general application for meeting logic control, the data processing of process control and communication networking etc.:
1.IO control circuit module simplifies digital control system main control module independently of digital control system main control module
Circuit；
2. realizing multimode connection by fieldbus networks, the control point IO can be realized by increasing multiple I/O control devices
Quick dilatation；
3. master controller receives the communication data of digital control system, the reading and output of IO are controlled, PLC function is realized, to knife
The peripheral equipments such as library realize programming independent control, to mitigate the logic control burden of digital control system.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is a kind of networking circuit schematic diagram of network type IO control device of the utility model；
Fig. 2 is a kind of circuit diagram of the network communication module of network type IO control device of the utility model；
Fig. 3 is a kind of master controller MCU circuit diagram of network type IO control device of the utility model；
Fig. 4 is a kind of composition schematic diagram of the I/O extension of network type IO control device of the utility model；
Fig. 5 is a kind of schematic diagram of the IO input circuit of network type I/O control device of the utility model.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As shown in Figure 1 to 4, a kind of network type I/O control device described in the utility model, the IO control device include
At least one I/O expansion component and power supply circuit.The power supply circuit is powered to I/O expansion component.By being set in I O board
Network communication module 3, I/O interface module 2 and master controller are set, and then forms I/O expansion component；The master controller connects with IO
Mouth mold block is connected with network communication module.
Shown in the circuit diagram of network communication module 3 as shown in Figure 2, the network communication module 3 and digital control system
Communication connection.The network communication module 3 includes at least one set of network LAN interfaces and the communicating circuit being mutually matched.This reality
It applies each I/O expansion component described in example to be respectively provided with there are two network LAN interfaces comprising LAN1 input interface and LAN2
One end of output interface, each LAN interface is connect with communicating circuit, and the other end of communicating circuit is connect with master controller, is used for
Transmit information and communication.Network communication module is interacted by cable with digital control system.
Specifically, the I/O interface module includes IO input circuit, protection circuit, isolation circuit and I/O connector；It is described
IO input circuit, protection circuit and isolation circuit are connected between master controller and I/O connector.I/O interface module is used for
Importation and the execution part for connecting the peripheral equipment of digital control system realize the entire control that peripheral equipment is connect with digital control system
Circuit processed.
The circuit theory of master controller as shown in Figure 3.The master controller uses MCU module 1.MCU module 1 receives number
The data packet of the control instruction of control system output, MCU module 1 are unpacked, and are controlled IO and read in and export.Meanwhile MCU module
1 is built-in with PLC function, downloads PLC program via system and configures corresponding I O point, can be inputted with independent control part IO and defeated
Out, to realize the independent control function to special lathe peripheral equipment, such as tool magazine, charging and discharging mechanism etc., to alleviate system
Logic control burden, also provide the response real-time to peripheral equipment.
Specifically, when the I/O control device of digital control system connection has multiple I/O expansion components.Digital control system is issued
Control instruction data packet, effectively distinguished by the module's address of MCU module 1, MCU module 1, which receives, matches its module
The data packet of the control instruction of location.
The IO input interface and IO output interface circuit schematic diagram of I/O expansion component as shown in Figure 4.MCU is total by data
The state of input optocoupler is read in 373 chip timesharing of line；Output state is latched into 373 chips, control electrical level transferring chip turns
Change 24V voltage output into.
As shown in Figure 1, the I/O control device that the digital control system of the present embodiment connects includes the first I/O expansion component, the 2nd IO
Extension element and third I/O expansion component.Above-mentioned three is distinguished by 1 address of MCU module of itself.Wherein, the first IO expands
It opens up component and passes through network communication module 3 and digital control system communication connection.The LAN1 input interface of first I/O control device passes through net
Line connect connection with digital control system；The LAN2 output interface of first I/O expansion component and the LAN1 input of the second I/O expansion component connect
Communication is realized in mouth connection；It is similar with this, the second I/O expansion component and third I/O expansion component communication connection.
In above-mentioned I/O control device, data packet is uniformly dealt on network, and each data packet head can be by all I/O expansions
Component receives.Wherein, when the module's address of the address of data packet head and specific I/O expansion component mismatches, I/O expansion component meeting
Abandon the data packet；When address is consistent with the module's address of specific I/O expansion component, I/O component receives complete data packet and solves
Pressure processing.
Digital control system, by the data packet of control instruction, is uniformly sent to I/O expansion component by network communication module 3.Accordingly
I/O expansion component receives its corresponding data packet and is decompressed, and MCU module 11 is built-in with PLC control program, and then can be with
Independent control part IO is output and input.And so on, the MCU module 12 of the 2nd I extension element obtains matched data packet,
The MCU module 13 of three extension elements obtains matched data packet；To identify the data packet that digital control system issues is expanded which IO
Exhibition component is operated.
Wherein, network communication module 3 is mainly completed between I/O control device and digital control system component and I/O expansion component
Communication.Digital control system distinguishes identification according to the module's address of I/O expansion component, realizes the long-range I/O expansion of peripheral equipment,
Remote diagnosis, monitoring and operation.
The communicating circuit of each I/O expansion component is identical；The present embodiment by taking the communicating circuit of the first I/O expansion component as an example,
As shown in Figure 2 comprising integrated circuit U2A, row needle CON2, power vd D33, ESD protector D17A, Transient Suppression Diode
Group, several resistance and several capacitors.
The Transient Suppression Diode group includes inhibiting diode D18A, inhibiting diode D19A, inhibit diode D20A；
The resistance includes resistance R5A, resistance R6A, resistance R7A, resistance R8A, build-out resistor SA19 and build-out resistor SA20；The electricity
Holding includes capacitor C7A and capacitor C8A；
Specifically, the integrated circuit U2A uses MAX3485 chip, and 1 port (RO) is that RXD receives data terminal, 2 ends
Mouth (RE) is connected to 3 ports (DE), 4 ports (DI) is TXD sending data end, 8 ports connect power vd D33,5 ports are earth polar
Ground connection；
One end of the 6 ports connection resistance R8A of integrated circuit U2A, the other end of resistance R8A are connect with power vd D33；Collection
At one end of the 7 ports connection resistance R5A of circuit U 2A, the other end ground connection of resistance R5A；The resistance R4A and row's needle CON2 string
Connection, resistance R4A are connect with 7 ports of integrated circuit U2A, and row needle CON2 is connect with 6 ports of integrated circuit U2A；
One end of resistance R6A is connect with 7 ports of integrated circuit U2A, and the other end of resistance R6A is with ESD protector D17A's
First port connection；One end of resistance R7A is connect with 6 ports of integrated circuit U2A, the other end and ESD protector of resistance R7A
The second port of D17A connects, the third port ground connection of ESD protector D17A；
One end of build-out resistor SA19 is connect with resistance R6A, and the other end of build-out resistor SA19 is separately connected network LAN and connects
The port COMTX/B of mouth and the other end ground connection of inhibition diode D18A, inhibition diode D18A；The one of build-out resistor SA20
End is connect with resistance R7A, and the other end of build-out resistor SA20 is separately connected the port COMRX/A and the inhibition two of network LAN interfaces
The other end of pole pipe D20A, inhibition diode D20A are grounded；
Inhibit one end matching connection resistance SA19 of diode D19A, inhibits one end matching connection resistance of diode D19A
SA20；One end of capacitor C8 and the port COMTX/B of network LAN interfaces connect, the other end ground connection of capacitor C8；The one of capacitor C7
End is connect with the port COMRX/A of network LAN interfaces, and the other end of capacitor C7 is connected on the route of capacitor C8 ground connection.
The IO input circuit includes that Light-emitting diode LED 31, NPN type triode, resistance R84, resistance R85 and dial-up are opened
Close S31；
2 ports of the toggle switch connect I/O interface device, which is input source；1 port of toggle switch is that NPN is defeated
Enter end, 3 ports of toggle switch are PNP input terminal；Toggle switch S31 can connect the input of NPN signal when connecting 1 port, directly
It is output on the optocoupler of master controller；It is PNP input when connecting 3 port, the electricity of NPN is converted signals by conversion circuit
It is flat, then input to the optocoupler of master controller；
The just extremely signal output end of the Light-emitting diode LED 31, connects the optocoupler of master controller；Light emitting diode
1 port of the cathode connection toggle switch of LED31；The collector C and Light-emitting diode LED 31 of the NPN type triode are just
Pole connection；The base stage B of NPN type triode and 3 ports of toggle switch connect, resistance of also having connected between base stage B and 3 ports
R84；Series resistance R85 between the base stage B and emitter E of NPN type triode, the emitter E ground connection of NPN type triode.
A kind of working principle of network type I/O control device described in the utility model is:
The utility model applies to bus network in high performance network type I/O control device.The IO controls device can be wide
The general application for meeting logic control, the data processing of process control and communication networking etc.:
1.IO control circuit module simplifies digital control system main control module independently of digital control system main control module
Circuit；
2. networking by fieldbus, network implementations multimode, IO control can be realized by increasing multiple I/O control devices
The quick dilatation of point；
3. master controller receives the communication data of digital control system, the reading and output of IO are controlled, PLC function is realized, to knife
The peripheral equipments such as library realize programming independent control, to mitigate the logic control burden of digital control system.
A kind of other structures of network type I/O control device described in the present embodiment are referring to the prior art.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, therefore it is all without departing from the content of the technical scheme of the utility model, implement according to the technical essence of the utility model to above
Any modification, equivalent variations and modification, are still within the scope of the technical solutions of the present invention made by example.
Claims (9)
1. a kind of network type I/O control device, which is characterized in that including at least one I/O expansion component, the I/O expansion component packet
Include I/O interface module, network communication module and master controller；
The master controller is connect with I/O interface module and network communication module respectively；
The network communication module is connect for I/O expansion component with external digital control system；
The I/O interface module is connect for I/O expansion component with peripheral equipment；
Wherein, an I/O expansion component is connect with external digital control system, and the I/O expansion component and other I/O expansion components pass through network
Communication module connection, realizes external digital control system and several I/O expansion component interactions.
2. network type I/O control device according to claim 1, which is characterized in that the network communication module includes:
At least one set of network LAN interfaces, the network LAN interfaces include LAN1 input interface and LAN2 output interface；
Communicating circuit, one end connect network LAN interfaces, and the other end connects master controller.
3. network type I/O control device according to claim 2, it is characterised in that:
The network communication module uses RJ45 network interface, connects two I/O expansion components by cable.
4. network type I/O control device according to claim 1, it is characterised in that:
The master controller is interacted by network communication module with the external world.
5. network type I/O control device according to claim 1, it is characterised in that:
The I/O interface module includes IO input circuit, protection circuit, isolation circuit and I/O connector；The IO input circuit,
Protection circuit and isolation circuit are connected between master controller and I/O connector.
6. network type I/O control device according to any one of claims 1 to 4, it is characterised in that:
The master controller uses MCU module, and the MCU module of each I/O expansion component is provided with independent module's address.
7. network type I/O control device according to claim 6, it is characterised in that:
The I/O control device is provided with the power supply circuit connecting with I/O expansion component.
8. network type I/O control device according to claim 2, it is characterised in that:
The communicating circuit includes integrated circuit U2A, row needle CON2, power vd D33, ESD protector D17A, two poles of transient state inhibition
Pipe group, several resistance and several capacitors；
The Transient Suppression Diode group includes inhibiting diode D18A, inhibiting diode D19A, inhibit diode D20A；It is described
Resistance includes resistance R5A, resistance R6A, resistance R7A, resistance R8A, build-out resistor SA19 and build-out resistor SA20；The capacitor packet
Include capacitor C7A and capacitor C8A；
Specifically, the integrated circuit U2A uses MAX3485 chip, and 1 port RO is that RXD receives data terminal, 2 port RE and 3
Port DE connection, 4 port DI are TXD sending data end, 8 ports connect power vd D33,5 ports are earth polar ground connection；
One end of the 6 ports connection resistance R8A of integrated circuit U2A, the other end of resistance R8A are connect with power vd D33；Integrated electricity
One end of the 7 ports connection resistance R5A of road U2A, the other end ground connection of resistance R5A；The resistance R4A connects with row needle CON2,
Resistance R4A is connect with 7 ports of integrated circuit U2A, and row needle CON2 is connect with 6 ports of integrated circuit U2A；
One end of resistance R6A is connect with 7 ports of integrated circuit U2A, the other end of resistance R6A and the first of ESD protector D17A
Port connection；One end of resistance R7A is connect with 6 ports of integrated circuit U2A, the other end and ESD protector D17A of resistance R7A
Second port connection, ESD protector D17A third port ground connection；
One end of build-out resistor SA19 is connect with resistance R6A, and the other end of build-out resistor SA19 is separately connected network LAN interfaces
The other end ground connection of the port COMTX/B and inhibition diode D18A, inhibition diode D18A；One end of build-out resistor SA20 with
Resistance R7A connection, the other end of build-out resistor SA20 are separately connected the port COMRX/A of network LAN interfaces and inhibit diode
The other end of D20A, inhibition diode D20A are grounded；
Inhibit one end matching connection resistance SA19 of diode D19A, inhibits one end matching connection resistance of diode D19A
SA20；One end of capacitor C8 and the port COMTX/B of network LAN interfaces connect, the other end ground connection of capacitor C8；The one of capacitor C7
End is connect with the port COMRX/A of network LAN interfaces, and the other end of capacitor C7 is connected on the route of capacitor C8 ground connection.
9. network type I/O control device according to claim 5, it is characterised in that:
The IO input circuit includes Light-emitting diode LED 31, NPN type triode, resistance R84, resistance R85 and toggle switch
S31；
2 ports of the toggle switch connect I/O interface device, which is input source；1 port of toggle switch is NPN input
End, 3 ports of toggle switch are PNP input terminal；Toggle switch S31 can connect the input of NPN signal when connecting 1 port, directly defeated
Master controller is arrived out；It is PNP input when connecting 3 port, the level of NPN is converted signals by conversion circuit, then input
To master controller；
The just extremely signal output end of the Light-emitting diode LED 31, connects master controller；Light-emitting diode LED 31 is born
1 port of pole connection toggle switch；The collector C of the NPN type triode is connect with the anode of Light-emitting diode LED 31；NPN
The base stage B of type triode and 3 ports of toggle switch connect, and also connected resistance R84 between base stage B and 3 ports；NPN type three
Series resistance R85 between the base stage B and emitter E of pole pipe, the emitter E ground connection of NPN type triode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821079797.9U CN208399953U (en) | 2018-07-09 | 2018-07-09 | A kind of network type I/O control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079797.9U CN208399953U (en) | 2018-07-09 | 2018-07-09 | A kind of network type I/O control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579285A (en) * | 2019-10-10 | 2019-12-17 | 天津吉诺科技有限公司 | thermocouple measuring module based on field bus and measuring method thereof |
| CN112051758A (en) * | 2019-06-06 | 2020-12-08 | 广东省大金创新电子有限公司 | IO extension chip |
-
2018
- 2018-07-09 CN CN201821079797.9U patent/CN208399953U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051758A (en) * | 2019-06-06 | 2020-12-08 | 广东省大金创新电子有限公司 | IO extension chip |
| CN112051758B (en) * | 2019-06-06 | 2023-12-15 | 广东省大金创新电子有限公司 | IO expansion chip |
| CN110579285A (en) * | 2019-10-10 | 2019-12-17 | 天津吉诺科技有限公司 | thermocouple measuring module based on field bus and measuring method thereof |
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