CN206440957U - A kind of four loops position formula Controlling Apparatus for Processes - Google Patents
A kind of four loops position formula Controlling Apparatus for Processes Download PDFInfo
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- CN206440957U CN206440957U CN201620177700.2U CN201620177700U CN206440957U CN 206440957 U CN206440957 U CN 206440957U CN 201620177700 U CN201620177700 U CN 201620177700U CN 206440957 U CN206440957 U CN 206440957U
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Abstract
The utility model discloses a kind of four loop position formula Controlling Apparatus for Processes, including binding post, the binding post includes communication common port, earth terminal and power supply, the binding post is provided with four road inputs, four tunnel output ends, with display interface and key-press input end, the different signals of input of four road input, four tunnel output end has, communication/relay, pick-up output/relay and two relay groups into, the display interface is OLED module, support MODBUS RTU communications, input signal selection circuit built in the input of four road, way of output selection circuit built in the output end of four tunnel, relay output control circuit built in the relay, also include main control singlechip and display single-chip microcomputer, the main control singlechip is connected with signal amplification computing, A/D converter circuit, pick-up DA output circuits and 485 telecommunication circuits, the display single-chip microcomputer is connected with OLEB interfaces, four road unlike signal type inputs can be supported simultaneously, four tunnel output control modes are optional, OLED display modes are more directly perceived, man-machine interaction more facilitates.
Description
Technical field
The utility model is related to industrial automation measurement control field, and in particular to a kind of four loops position formula process control instrument
Table.
Background technology
At present, all types of industries automatic measurement control instrument species is various, model is various.But, the input signal of measurement
The optional mode that category, control are exported is less, is made troubles to instrument selection；Most instrument display mode is number
Pipe, range ability -1999~9999, show extremely not directly perceived for bipolar input signal；Human-computer interaction interface is single, operation
Inconvenience, is unfavorable for realizing centralized management and configuration monitoring.
Utility model content
For problem above, the utility model provides a kind of four loop position formula Controlling Apparatus for Processes, four tunnel input signals
Type can it is different, support up to 26 kinds common industrial signal types inputs, can coordinate and make with various kinds of sensors, transmitter
With, four tunnel output control modes have Control, pick-up DA outputs and MODBUS communications flexibly to select as needed, and
The various optional, display mode of output control mode is that OLED is more directly perceived, and man-machine interaction has button and communication two ways more
It is convenient, the problem of effectively can solving in technical background.
To achieve these goals, the technical solution adopted in the utility model is as follows：A kind of four loops position formula process control
Instrument, including binding post, the binding post include communication common port, earth terminal and power supply, and the binding post is provided with four
Road input, four tunnel output ends, display interface and key-press input end, four road input input different signals, described four
Road output end by communication/relay, pick-up output/relay and two relay groups into, the display interface be OLED module,
Support MODBUS RTU communications, input signal selection circuit built in the input of four road, the built-in output of four tunnel output end
Mode selection circuit, relay output control circuit built in the relay, in addition to main control singlechip and display single-chip microcomputer, institute
State main control singlechip be connected with signal amplification computing, A/D converter circuit, pick-up DA output circuits and 485 telecommunication circuits, it is described aobvious
Show that single-chip microcomputer is connected with OLEB interfaces.
It is used as a kind of preferred technical scheme of the utility model, the four roads input built-in temperature sensor, the temperature
The measured value of degree sensor can switch three kinds of units.Respectively degree Celsius, degrees Fahrenheit and absolute temperature.
As a kind of preferred technical scheme of the utility model, the output of the relay is divided into alarm and setting value action
Two ways, four passages of four tunnel output ends are separately provided parameter, and the output of pick-up output/relay can specify any defeated
Enter passage.
The beneficial effects of the utility model：
The utility model not only compatible 26 kinds of common industrial input signal species (thermocouples：K、S、R、T、E、J、B、N、
WRe3-WRe25, Wre5-WRe26, thermal resistance：PT100, Cu50, resistance：0~80 Ω, 0~400 Ω, electric current：0~20mA, 4
~20mA, voltage：0~20mV, 0~100mV, -20~20mV, -100~100mV, 0~1V, 0~5V, 1~5V, -5~5V, 0
~10V, -10~10V), four tunnel input signals can be different, and the various optional, display mode of output control mode is OLED
More directly perceived, man-machine interaction has button and communication two ways more to facilitate.
Brief description of the drawings
Fig. 1 is terminal connection diagram of the present utility model.
Fig. 2 is input signal selection circuit schematic diagram.
Fig. 3 is signal amplification computing and A/D converter circuit schematic diagram.
Fig. 4 is main control singlechip connection circuit theory diagrams.
Fig. 5 is display single-chip microcomputer and OLED connection circuit theory diagrams.
Fig. 6 is pick-up DA output circuit schematic diagrams.
Fig. 7 is 485 telecommunication circuit schematic diagrams.
Fig. 8 is relay output control circuit schematic diagram.
Fig. 9 is three-way and four-way way of output selection circuit schematic diagram.
Figure 10 is the bulk supply circuit theory diagrams of instrument.
Figure 11 is the power supply circuit schematic diagram that pick-up DA outputs and RS485 communicate.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
As shown in figure 1, a kind of four loops position formula Controlling Apparatus for Processes, including binding post, the binding post includes logical
Common port, earth terminal and power supply are interrogated, the binding post is provided with four road inputs, four tunnel output ends, with display interface and presses
Key input end, it is characterized in that：The different signals of input of four road input, four tunnel output end have, communication/relay
Device, pick-up output/relay and two relay groups are OLED module, support MODBUS RTU communications into, the display interface,
Input signal selection circuit built in the input of four road, way of output selection circuit built in the output end of four tunnel, it is described after
Electric appliance built-in relay output control circuit, in addition to main control singlechip and display single-chip microcomputer, the main control singlechip are connected with
Signal amplification computing, A/D converter circuit, pick-up DA output circuits and 485 telecommunication circuits, the display single-chip microcomputer is connected with OLEB
Interface, the four roads input built-in temperature sensor, the measured value of the temperature sensor can switch three kinds of units.Respectively
For degree Celsius, degrees Fahrenheit and absolute temperature, it is defeated that the output of the relay is divided into alarm and setting value action two ways, four roads
Four passages for going out end are separately provided parameter, and the output of pick-up output/relay can specify any input channel.
In Fig. 1, it is that terminal connections illustrate, terminal number (13~24) correspondence input signal, terminal number (1~9) correspondence is defeated
Go out, terminal number (10~12) correspondence power supply.
In fig. 2, it is No. four input circuits, input signal is input to multidiameter option switch after low pass filter
(U2) multidiameter option switch (U3) input (S4), is input to through (U2) common port (D), the input (S2) of (U3) is circuit
Zero potential input, the input (S3) of (U3) is the cold junction temperature measurement input of thermocouple signal.(U3) common port (D) is defeated
Enter to (R5) end in subsequent arithmetic amplifying circuit Fig. 3.
In figure 3, single-chip microcomputer is different according to input signal types, controls (U4) intelligent selection multiplication factor, (U6) is used for
The computing of bipolar signal input ensure to be input to the voltage of (U7) at (U7) can tolerance range 0-5V.(U8) it is Precision reference
There is provided (U7) reference voltage for voltage chips.(U7) transformation result is sent to Fig. 4 by pin (5~7) in SPI communication mode
In main control singlechip (U2), realize input signal gather.
In Fig. 4, (U2) is main control singlechip, performs the functions, (S1~S4) portion such as data acquisition, computing, output control
It is key circuit to divide, and (DY1) is power supply indicator, for indicating normal operating conditions and alarm condition, (RXD1) and (TXD1)
It is 485 communication indicator lamps, for indicating communications status.
In Figure 5, (U1) is display single-chip microcomputer, and dedicated for controlling the display of OLED liquid crystal, display content is by master control list
Piece machine is sent to (U1) in SPI communication mode, and (U1) sends the data to OLED module according to display content in SPI communication mode
(P1), (D1) is display single-chip microcomputer working station indicator, the working condition for indicating (U1).
In figure 6, (U2~U4) realizes output and the Phototube Coupling of main control MCU, and (U1) part produces Precision reference 5V and supplied
16 modulus conversion chip (U5) reference voltages, (U5) receives main control MCU data and digital quantity is converted into analog output,
(U6A) partial circuit realizes different range voltage outputs, and (U6B) partial circuit realizes that voltage conversion exports for electric current, and (S1) is hard
The part selection pick-up way of output is voltage or electric current.
In the figure 7, (U1) is RS485 communication chips, and (U2) and (U3) realizes communication to the Phototube Coupling of main control MCU.
In fig. 8, (K1~K4) is control relay, (U4~U7) realize the photoelectricity of main control MCU and relay circuit every
From.
In fig .9, it is that relay output or RS485 communicate that (S1) and (S3), which is used for hardware selection output four-way,
(S4) it is used for hardware with (S5) and selects output triple channel to be relay output or pick-up DA outputs.
In Fig. 10, (P15) is special switch power module, and performance is stable, inputs as 220V/AC, is output as isolation
24V and 5V, powered for whole circuit.
In fig. 11, (U4) is special insulating power supply DC/DC modules, inputs as 24V, is output as+15V and -15V,
(IC2) it is voltage reduction module, produces 5V.
Specifically, analog multichannel switch is input to after the four low-pass filtered devices of tunnel input signal, by the public of analog switch
End is input to follow-up enhanced processing computing circuit, and signal is input to the AD conversion chip of 22 after processing, then is read by single-chip microcomputer
Transformation result union handles, shows measurement result, realizes output control function.Input, output, the isolation of the end of power supply three, isolation
Voltage reaches 2000V/AC/60S.
Four tunnel input signals are input to multidiameter option switch after low-pass filter circuit, are automatically switched by single-chip microcomputer defeated
Enter the collection that passage realizes four tunnel input signals, single-chip microcomputer automatically selects times of subsequent amplification circuitry according to input signal types
Number.According to operation result and related parameter configuration, the different way of outputs and display are performed.The way of output has relay control
System, pick-up DA outputs and MODBUS communications, wherein actuating of relay mode are divided into alarm and setting value acts two ways, alarm
State may be defined as 5 kinds：Upper limit alarm, lower limit alarm, upper deviation alarm, lower deviation alarm, the alarm of deviation band, four passages
Type of alarm can be separately provided, and thermocouple and thermal resistance signal have open sensor to have sensor to open after detecting circuit, open circuit
Road is alarmed, and setting value manner of execution has return difference parameter setting, can prevent relay frequent movement, is set by delay time parameter
Putting be able to can be separately provided with control relay actuation time, the time delay of four passages；Pick-up DA output be divided into voltage and
Electric current two types, voltage-type output area is divided into：Tetra- kinds of 0-5V, 0-10V, 1-5V, 2-10V, current mode output area is divided into：
Tri- kinds of 0-20mA, 0-10mA, 4-20mA；MODBUS communications portion is RS485 communications, MODBUS rtu protocols.Display portion is
OLED, can show that the maximum range of measured value (for temperature signal, has three kinds of units to set for -10000~10000：Take the photograph
Family name's degree, degrees Fahrenheit, absolute temperature), and show related work alarm condition.Man-machine interaction has two kinds of sides of button and MODBUS communications
Formula, it is possible to achieve the modification of measurement control parameter, communication can also read four drive test values, pick-up value, parameter setting, alarm shape
State etc..
The utility model not only compatible 26 kinds of common industrial input signal species (thermocouples：K、S、R、T、E、J、B、N、
WRe3-WRe25, Wre5-WRe26, thermal resistance：PT100, Cu50, resistance：0~80 Ω, 0~400 Ω, electric current：0~20mA, 4
~20mA, voltage：0~20mV, 0~100mV, -20~20mV, -100~100mV, 0~1V, 0~5V, 1~5V, -5~5V, 0
~10V, -10~10V), four tunnel input signals can be different, and the various optional, display mode of output control mode is OLED
More directly perceived, man-machine interaction has button and communication two ways more to facilitate.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of four loops position formula Controlling Apparatus for Processes, including binding post, the binding post include communication common port, ground connection
End and power supply, it is characterised in that：The binding post is provided with four road inputs, four tunnel output ends, display interface and key-press input
End, four road input inputs different signals, four tunnel output end by communication/relay, pick-up output/relay and
Two relay groups are into the display interface is OLED module, supports MODBUS RTU to communicate, defeated built in the input of four road
Enter signal selecting circuit, way of output selection circuit built in the output end of four tunnel, relay output control built in the relay
Circuit processed, in addition to main control singlechip and display single-chip microcomputer, the main control singlechip are connected with signal amplification computing, AD conversion electricity
Road, pick-up DA output circuits and 485 telecommunication circuits, the display single-chip microcomputer are connected with OLEB interfaces.
2. a kind of four loops position formula Controlling Apparatus for Processes according to claim 1, it is characterized in that：In the input of four road
Put temperature sensor, the measured value of the temperature sensor can switch three kinds of units, be respectively degree Celsius, degrees Fahrenheit and definitely
Temperature.
3. a kind of four loops position formula Controlling Apparatus for Processes according to claim 1, it is characterized in that：The output of the relay
It is divided into alarm and setting value acts two ways, four passages of four tunnel output ends is separately provided parameter, pick-up output/relay
Output can specify any output channel.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227481A (en) * | 2018-01-27 | 2018-06-29 | 石家庄德堃电子科技有限公司 | A kind of multi-functional process procedures controllers of PID and its control flow of band feed |
| CN108388712A (en) * | 2018-02-07 | 2018-08-10 | 中国化学赛鼎宁波工程有限公司 | A kind of instrument circuit drawing drawing method based on SPI softwares |
| CN110058551A (en) * | 2019-05-06 | 2019-07-26 | 石家庄德堃电子科技有限公司 | A kind of process controller packet control process |
| CN112230573A (en) * | 2020-03-18 | 2021-01-15 | 石家庄德堃电子科技有限公司 | Intelligent online distribution load balancing process controller |
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2016
- 2016-03-08 CN CN201620177700.2U patent/CN206440957U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227481A (en) * | 2018-01-27 | 2018-06-29 | 石家庄德堃电子科技有限公司 | A kind of multi-functional process procedures controllers of PID and its control flow of band feed |
| CN108388712A (en) * | 2018-02-07 | 2018-08-10 | 中国化学赛鼎宁波工程有限公司 | A kind of instrument circuit drawing drawing method based on SPI softwares |
| CN108388712B (en) * | 2018-02-07 | 2021-12-10 | 中国化学赛鼎宁波工程有限公司 | Instrument loop diagram drawing method based on SPI software |
| CN110058551A (en) * | 2019-05-06 | 2019-07-26 | 石家庄德堃电子科技有限公司 | A kind of process controller packet control process |
| CN112230573A (en) * | 2020-03-18 | 2021-01-15 | 石家庄德堃电子科技有限公司 | Intelligent online distribution load balancing process controller |
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