CN205692163U - A kind of many main control end serial ports conversion equipment - Google Patents
A kind of many main control end serial ports conversion equipment Download PDFInfo
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- CN205692163U CN205692163U CN201620443380.0U CN201620443380U CN205692163U CN 205692163 U CN205692163 U CN 205692163U CN 201620443380 U CN201620443380 U CN 201620443380U CN 205692163 U CN205692163 U CN 205692163U
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- main control
- serial
- high speed
- conversion equipment
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Abstract
This utility model provides a kind of many main control end serial ports conversion equipment, including: high speed CPLD main control chip, multiple first serial and at least one second serial.Wherein, first serial is for being connected with main control device, and second serial is for being connected with controlled device.High speed CPLD main control chip the first end connects first serial, and the second end connects second serial.Acquisition module that high speed CPLD main control chip includes being sequentially connected with, kernel control module, data transmission module.
Description
Technical field
This utility model relates to serial port communication technology field, particularly to a kind of many main control end serial ports conversion equipment.
Background technology
Along with the development of Internet technology, increasing manufacturing enterprise carries out centralized management to production equipment.At present, main
Control equipment is, by serial ports conversion equipment, controlled device is carried out management and control.But, the shortcoming of existing serial ports conversion equipment is: only
The management and control to controlled device of the main control device can be realized, it is impossible to meet manufacturing enterprise's multiple stage main control device to controlled device management and control
Needs.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of many main control end serial ports conversion equipment, by serial ports conversion equipment
Extension to serial ports can realize the communication between multiple stage main control device and controlled device.
For solving above-mentioned technical problem, present invention employs following technical scheme:
A kind of many main control end serial ports conversion equipment includes: high speed CPLD main control chip, multiple first serial and at least one
Second serial.Wherein, first serial is for being connected with main control device, and second serial is for being connected with controlled device.
Further, high speed CPLD main control chip the first end connects first serial, and the second end connects second serial.
Further, high speed CPLD main control chip includes that the acquisition module being sequentially connected with, kernel control module, data transmit mould
Block.
Further, acquisition module is by multiple first serial high speed acquisition the signal that caches multiple main control device.
Further, the signal of the main control device that acquisition module is cached by kernel control module, according to priority it is sent to data
Transport module.
Further, the signal that data transmission module sends main control device according to priority by second serial sets to controlled
Standby.
Further, acquisition module passes through second serial high speed acquisition and caches the signal of controlled device.
Further, the signal of the controlled device that acquisition module is cached by kernel control module, according to priority it is sent to data
Transport module.
Further, data transmission module sends the signal of controlled device to phase according to priority by corresponding first serial
The main control device answered.
Further, the model of first serial is identical.
Further, first serial and second serial are RS232 interface.
Further, the quantity of first serial is two, and the quantity of described second serial is one.
Further, high speed CPLD main control chip is EPM240T100 chip.
Further, device also includes that power module, described power module are direct current 24V, and is high speed CPLD main control chip
Power supply is provided.
Further, device also includes technical grade isolated from power protection circuit.
This serial port device low cost, simple in construction, simple installation, easy to use, by the extension of serial ports can be realized
Communication between multiple host and at least one equipment.
Accompanying drawing explanation
Fig. 1 is the module diagram in first embodiment；
Fig. 2 is the flow chart in second embodiment.
Detailed description of the invention
The present invention is further illustrated below by specific embodiment.It should be understood, however, that, these embodiments are only
It is used for specifically describing in more detail, and is not to be construed as limiting in any form the present invention.
In conjunction with Fig. 1, one many main control end serial ports conversion equipment that the present embodiment provides, including: high speed CPLD main control chip,
Multiple first serials and at least one second serial.Wherein, first serial for being connected with main control device, second serial be used for
Controlled device connects.
High speed CPLD main control chip the first end connects first serial, and the second end connects second serial.
Further, high speed CPLD main control chip includes that the acquisition module being sequentially connected with, kernel control module, data transmit mould
Block.
This apparatus structure is simple, it is simple to installs, can realize the communication between multiple stage main control device and a controlled device.
Acquisition module is by multiple first serial high speed acquisition the signal that caches multiple main control device.
The signal of the main control device that acquisition module is cached by kernel control module, is according to priority sent to data transmission mould
Block.
Data transmission module sends the signal of main control device to controlled device according to priority by second serial.
Acquisition module passes through second serial high speed acquisition and caches the signal of controlled device.
The signal of the controlled device that acquisition module is cached by kernel control module, is according to priority sent to data transmission mould
Block.
Data transmission module sends the signal of controlled device to corresponding main according to priority by corresponding first serial
Control equipment.
Cache multiple communication instruction, and multiple communication instructions are carried out anti-collision process, according to the principle of FIFO, the
One enters its interior data first and is moved out of.
The model of first serial is identical.
First serial and second serial are RS232 interface.
The quantity of first serial is two, and the quantity of second serial is one.The quantity of first serial can be multiple phase
The RS232 interface of same model, it would however also be possible to employ the serial ports that the function of other model is close.
High speed CPLD main control chip is EPM240T100 chip.The chip that other model function is close can also be used.
Device also includes that power module, described power module are direct current 24V, and provides electricity for high speed CPLD main control chip
Source.
Device also includes technical grade isolated from power protection circuit.
When main control device communicates with controlled device, when the serial ports of controlled device whole occupied time, by the of this device
Two serial ports are connected with controlled device, and first serial is connected with main control device, and are converted into asynchronous serial communication based on TCP/UDP
The network service of agreement, it is achieved data transparent transmission between main control device and controlled device.
In conjunction with Fig. 2, the first serial of a kind of many main control end serial ports conversion equipment that the present embodiment provides respectively with main frame 1 and
Main frame 2 connects, and second serial is connected with PLC slave station.Many main control end serial ports conversion equipment receives and storage host 1 and main frame 2
Signal, and it is sent to PLC slave station by second serial after the signal of main frame 1 and main frame 2 is carried out anti-collision process.This device
The signal of control chip each serial ports of high speed acquisition, and judge that the priority of the main serial ports of multichannel is arranged, many according to priority distribution
The authority of individual main frame, is transmitted to the serial ports of correspondence by signal.The control chip of this device can identify automatically, the string of matching unit
Mouth communication speed, and do not limited by communication protocol, it is achieved that the transparent transmission of data, it is achieved that multiple main frames set single
The communications access of standby serial ports, greatly reduces the workload of the replacing of equipment, transformation, achieves quickly in the way of low cost
Communication connect.
This serial port device low cost, simple in construction, simple installation, easy to use, by the extension of serial ports can be realized
Communication between multiple host and at least one equipment.
Although present invention has been a certain degree of description, it will be apparent that, without departing from the spirit and scope of the present invention
Under the conditions of, the suitable change of each condition can be carried out.It is appreciated that and the invention is not restricted to described embodiment, and be attributed to right
The scope required, it includes the equivalent of described each factor.
Claims (7)
1. main control end serial ports conversion equipment more than a kind, it is characterised in that described device includes: high speed CPLD main control chip, multiple
First serial and a second serial, wherein, described first serial for being connected with main control device, described second serial be used for
Controlled device connects；
Described high speed CPLD main control chip the first end connects described first serial, and the second end connects described second serial；
Acquisition module that described high speed CPLD main control chip includes being sequentially connected with, kernel control module, data transmission module；
Described acquisition module is by multiple described first serial high speed acquisition the signal that caches multiple described main control device；
The signal of the described main control device that described acquisition module is cached by described kernel control module, is according to priority sent to described
Data transmission module；
Described data transmission module sends the signal of described main control device to institute according to described priority by described second serial
State controlled device；
Described acquisition module is by described second serial high speed acquisition the signal that caches described controlled device；
The signal of the described controlled device that described acquisition module is cached by described kernel control module, is according to priority sent to described
Data transmission module；
Described data transmission module according to described priority by corresponding first serial send described controlled device signal to
Corresponding described main control device.
Many main control end serial ports conversion equipment the most according to claim 1, it is characterised in that: the model phase of described first serial
With.
Many main control end serial ports conversion equipment the most according to claim 1, it is characterised in that: described first serial and the second string
Mouth is RS232 interface.
Many main control end serial ports conversion equipment the most according to claim 1, it is characterised in that: the quantity of described first serial is
Two.
Many main control end serial ports conversion equipment the most according to claim 1, it is characterised in that: described high speed CPLD master control core
Sheet is EPM240T100 chip.
Many main control end serial ports conversion equipment the most according to claim 1, it is characterised in that: described device also includes power supply mould
Block, described power module is direct current 24V, and provides power supply for high speed CPLD main control chip.
Many main control end serial ports conversion equipment the most according to claim 1, it is characterised in that: described device also includes technical grade
Isolated from power protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443380.0U CN205692163U (en) | 2016-05-13 | 2016-05-13 | A kind of many main control end serial ports conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443380.0U CN205692163U (en) | 2016-05-13 | 2016-05-13 | A kind of many main control end serial ports conversion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205692163U true CN205692163U (en) | 2016-11-16 |
Family
ID=57262062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620443380.0U Active CN205692163U (en) | 2016-05-13 | 2016-05-13 | A kind of many main control end serial ports conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205692163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113364743A (en) * | 2021-05-18 | 2021-09-07 | 董秀娟 | Multi-channel communication method and device, electronic equipment and storage medium |
-
2016
- 2016-05-13 CN CN201620443380.0U patent/CN205692163U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113364743A (en) * | 2021-05-18 | 2021-09-07 | 董秀娟 | Multi-channel communication method and device, electronic equipment and storage medium |
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