CN106773903A - A kind of signal circuit and terminal board - Google Patents
A kind of signal circuit and terminal board Download PDFInfo
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- CN106773903A CN106773903A CN201611042491.1A CN201611042491A CN106773903A CN 106773903 A CN106773903 A CN 106773903A CN 201611042491 A CN201611042491 A CN 201611042491A CN 106773903 A CN106773903 A CN 106773903A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- Automation & Control Theory (AREA)
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Abstract
The present invention provides a kind of signal circuit and terminal board, wherein the control module of signal circuit only sets up communication connection wherein all the way between first port and second port every time, namely the analog signalses for gathering all the way or digital quantity signal are only had every time through second port output, realize the timesharing input of multichannel input signal；Or first port output of the control signal through being communicated to connect with second port foundation all the way is only had every time, realize the timesharing output of control signal of not going the same way.When the signal circuit is applied into technical field of electric control, control system only needs to one or small number of analog module or digital module, the timesharing output of the timesharing input or multi-way control signals to multi pass acquisition signal can just be realized, the quantity of analog module and digital module needed for greatly reducing control system, reduces the cost of control system.
Description
Technical field
The present invention relates to technical field of electric control, and in particular to a kind of signal circuit and terminal board.
Background technology
Using tradition more than the switch board of current distributed AC servo system (DCS) system, Programmable logical controller (PLC) system etc.
The mode of connection, wiring is complicated, inefficiency, and wiring error easily occurs.
In order to solve the above-mentioned technical problem, occur in that and be applied to distributed AC servo system (DCS) system, Programmable logical controller
(PLC) terminal board of system etc..Terminal board is based on a kind of special of the exploitations such as industry standard, control system and process instrument
Integrated interface, is capable of achieving the slitless connection with distributed AC servo system (DCS) system, Programmable logical controller (PLC) system etc., passes through
The signal transmission passage of terminal board just can be to the letter of distributed AC servo system (DCS) system, Programmable logical controller (PLC) system etc.
Number input channel transmission analog quantity or digital quantity signal.It can be seen that the application of terminal board simplifies wiring process, work has been adapted to
The need for industry automatic technology develops.
But because distributed AC servo system (DCS) system, Programmable logical controller (PLC) system etc. are needed in automatic control process
Substantial amounts of analog quantity and digital quantity signal are wanted as reference quantity, such as the analog input such as temperature, flow, thing position, pH value letter
Number, and control valve opening, frequency converter analog quantity output signals such as given speed etc., cause to be needed in above-mentioned control system big
The analog quantity and digital module of amount could meet the collection and control of above-mentioned multi-analog and digital quantity signal, and simulate
Amount and digital module, especially analog module cost it is very expensive, this undoubtedly increased whole control system into
This.
The content of the invention
Therefore, the embodiment of the present invention technical problem to be solved is to overcome the control in automation field in the prior art
System cost processed is too high.
Therefore, the embodiment of the invention provides following technical scheme：
A kind of signal circuit is the embodiment of the invention provides, including：
Signal transmission module, it includes at least two-way first port and all the way second port；
Control module, only sets up communication connection wherein all the way between the first port and the second port every time.
Alternatively, the signal circuit described in the embodiment of the present invention, the control module is built according to prefixed time interval
Communication connection described in Li Ge roads between first port and the second port.
Alternatively, the signal circuit described in the embodiment of the present invention, if first port and corresponding signal described in per road
Harvester is communicated to connect, then the second port is logical with the input of digital quantity all the way of control system or analog input end
Letter connection；
If the end of digital output all the way of the second port and the control system or all the way analog output end lead to
Letter connection, first port described in Ze Mei roads is communicated to connect with the control end of corresponding controlled device.
Alternatively, the signal circuit described in the embodiment of the present invention, also includes：
First state information feedback module, obtains from the control module and the one of communication connection is set up with the second port
First state information corresponding to first port described in road, and by the first state information transfer to the control system.
Alternatively, the signal circuit described in the embodiment of the present invention, the first state information feedback module is and described
At least digital quantity input communication connection all the way of control system；Wherein,
The first state information includes the combination of the data signal of multichannel first, the way of first data signal and institute
State, each institute consistent with the way of the digital quantity input that the first state information feedback module is communicated to connect in control system
State the first data signal and be input into the control system through the digital quantity input of its corresponding control system described all the way.
Alternatively, the signal circuit described in the embodiment of the present invention, also includes：
Second status information feedback module, being obtained from the control system will set up communication connection with the second port
The second status information corresponding to the first port all the way, and second status information is transmitted to the control module；
The control module, according to corresponding to second status information sets up second status information described all the way
Communication connection between Single port and the second port.
Alternatively, the signal circuit described in the embodiment of the present invention, the second status information feedback module is and described
At least digital output end communication connection all the way of control system；Wherein,
Second status information includes the combination of the data signal of multichannel second, the way of second data signal and institute
State, each institute consistent with the way at the digital output end that the second status information feedback module is communicated to connect in control system
Digital output end input second status information that the second data signal is stated through its corresponding control system described all the way is anti-
Feedback module, through the second status information feedback module transfer to the control module.
Alternatively, the signal circuit described in the embodiment of the present invention, the signal transmission module includes 2nRoad first end
Mouthful, wherein n is the road of the digital quantity input communicated to connect with the first state information feedback module in the control system
Number, or
N is the road at the digital output end communicated to connect with the second status information feedback module in the control system
Number.
Alternatively, the signal circuit described in the embodiment of the present invention, n=3.
The embodiment of the present invention additionally provides a kind of terminal board, including above-mentioned signal circuit.
Embodiment of the present invention technical scheme, has the following advantages that：
A kind of signal circuit is the embodiment of the invention provides, its control module only sets up wherein first end all the way every time
Communication connection between mouth and second port, namely the analog signalses for gathering all the way or digital quantity signal warp are only had every time
Second port is exported, and realizes the timesharing input of multichannel input signal；Or every time only have all the way control signal pass through and second
The first port output of communication connection is set up in port, realizes the timesharing output of control signal of not going the same way.By signal transmission electricity
When road is applied to technical field of electric control, the multiple analog quantitys or digital quantity signal that will can be collected pass through the different time
Section is transmitted to the signal input channel of same path control system, or by the signal output channels of same path control system,
The different time periods sends corresponding control signal to multiple different controlled devices.Namely control system only need to one or
Small number of analog module or digital module, it is possible to realize to the timesharing input of multi pass acquisition signal or multichannel
The timesharing output of control signal, the quantity of analog module and digital module needed for greatly reducing control system, drop
The low cost of control system.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a structured flowchart for instantiation of signal circuit in the embodiment of the present invention；
Fig. 2 is second structured flowchart of instantiation of signal circuit in the embodiment of the present invention；
Fig. 3 is the 3rd structured flowchart of instantiation of signal circuit in the embodiment of the present invention；
Fig. 4 is the 4th structured flowchart of instantiation of signal circuit in the embodiment of the present invention；
Fig. 5 is the 5th structured flowchart of instantiation of signal circuit in the embodiment of the present invention.
Reference：
1- signal transmission modules；2- control modules；3- first state information feedback modules；4- the second status information feedback moulds
Block.
Specific embodiment
The technical scheme of the embodiment of the present invention is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment be a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belongs to present invention protection
Scope.
, it is necessary to explanation in the description of the embodiment of the present invention, term " " center ", " on ", D score, "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship,
It is for only for ease of the description embodiment of the present invention and simplifies description, must has rather than the device or element for indicating or imply meaning
Have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in the description of the embodiment of the present invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Two connections of element internal are can also be, can be wireless connection, or wired connection.For the common skill of this area
For art personnel, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Can just be combined with each other into conflict.
A kind of signal circuit is the embodiment of the invention provides, the signal circuit for example can apply to electric-controlled
Technical field processed.Signal circuit in certain embodiment of the present invention is not limited to that.Led with Electrical Control Technology below
As a example by domain, explanation is further expalined to the signal circuit in the embodiment of the present invention.
As shown in figure 1, the signal circuit in the embodiment of the present invention includes：
Signal transmission module 1, it includes at least two-way first port and all the way second port.During concrete application, Yong Huye
1 tunnel first port can be only accessed according to actual conditions.
Control module 2, only sets up communication connection wherein all the way between first port and second port every time.
Signal circuit in the embodiment of the present invention, because its control module only sets up wherein first port all the way every time
Communication connection between second port, namely the analog signalses that gather all the way or digital quantity signal are only had every time through the
Two-port netwerk is exported, and realizes the timesharing input of multichannel input signal；Or each control signal all the way that only has is passed through and the second end
Mouth sets up the first port output of communication connection, realizes the timesharing output of control signal of not going the same way.By the signal circuit
When being applied to technical field of electric control, the multiple analog quantitys or digital quantity signal that will can be collected pass through the different time periods
Transmit to the signal input channel of same path control system, or by the signal output channels of same path control system, not
The same time period sends corresponding control signals to multiple different controlled devices.Namely control system only need to one or compared with
The analog module or digital module of small number, it is possible to realize the timesharing input or multichannel control to multi pass acquisition signal
The timesharing output of signal processed, the quantity of analog module and digital module needed for greatly reducing control system is reduced
The cost of control system.
Used as a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, its control module 2 is according to pre-
If the communication connection that time interval is set up between each road first port and second port.Specifically, by taking 8 tunnel first ports as an example,
Each road first port is sequentially identified with A1-A8, and prefixed time interval can set as needed, such as could be arranged to 0.1s,
Assuming that t1 moment control modules set up the communication connection between A1 roads first port and second port, then the signal of A1 roads first port
Will be exported by second port, or the control signal that second port sends will be exported by A1 roads first port；t1+
After 0.1s, control module can disconnect the communication connection between A1 roads first port and second port, while setting up another road first end
Mouthful, such as the communication connection between A2 roads first port and second port, now the signal of A2 roads first port will be by second
Port is exported, or the control signal that second port sends will be exported by A2 roads first port, below by that analogy, and
Move in circles, realize the timesharing input of each road collection signal or the timesharing output of multi-way control signals.
As a kind of alternatively implementation method, as shown in Fig. 2 the signal circuit in the embodiment of the present invention, if per road
First port is communicated to connect with corresponding signal pickup assembly, then the input of digital quantity all the way of second port and control system or
Person's analog input end communicates to connect.Specifically, signal pickup assembly can be sensor, by the sensing of various difference in functionalitys
Device realizes the collection of corresponding variety classes signal, now the signal circuit in the embodiment of the present invention be used for signal point
When be input into, control module establishes the communication connection between which first port and second port, will be by the road first port
Digital quantity signal or analog signalses pass through second port input control system.And the signal of collection is digital quantity signal
When, second port is connected with the input of digital quantity all the way of control system；When the signal of collection is analog signalses, second port
It is connected with the end of analog input all the way of control system.
If or the as shown in figure 3, end of digital output all the way of second port and control system or analog quantity is defeated all the way
Go out end communication connection, Ze Mei roads first port is communicated to connect with the control end of corresponding controlled device.Specifically, controlled device can
The control signal that thinking generator or motor etc. can send according to PLC dispatch control systems performs the controlled of corresponding operating and sets
It is standby.Now the signal circuit in the embodiment of the present invention is used for the timesharing output of control signal, and which control module establishes
Communication connection between road first port and second port, the control signal that will be sent control system passes through the road first port
Transmit to corresponding controlled device, the controlled device is regulated and controled.And the control signal that control system sends is for digital quantity is believed
Number when, second port is connected with the end of digital output all the way of control system, control signal be analog signalses when, second port
It is connected with the end of analog output all the way of control system.
As a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, as shown in figure 4, except bag
Include outside above-mentioned signal transmission module 1 and control module 2, also include：
First state information feedback module 3, obtains from control module and all the way the first of communication connection is set up with second port
First state information corresponding to port, and by first state information transfer to control system.Specifically, prestored in control module
Have per first state information all the way corresponding to first port, when control module establishes certain first port and second port all the way
Between communication connection after, will by the first state information corresponding to the road first port pass through first state information feedback module
Feed back to control system, control system can be determining that currently received signal comes from according to the first state information for receiving in time
Which first port.
Used as a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, its first state information is anti-
Feedback module 3, at least digital quantity input communication connection all the way with control system；Wherein,
First state information includes the combination of the data signal of multichannel first, in the way and control system of the first data signal
Way with the digital quantity input that first state information feedback module is communicated to connect is consistent, and each first data signal is right through its
The digital quantity input input control system of the path control system answered.Specifically, control system need to only provide finite number word
Amount input (cost be far below analog module), first state information feedback module just can through above-mentioned digital quantity input to
Control system is input into the combination (first state information) of the first data signal, and control system just can be with according to first state information
Determine which first port currently received signal comes from time.
As a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, as shown in figure 5, also including：
Second status information feedback module 4, all the way for being set up with second port and being communicated to connect is obtained from control system
The second status information corresponding to Single port, and the second status information is transmitted to control module 2；Control module 2, according to second
Status information sets up the communication connection all the way between first port and second port corresponding to second status information.Specifically,
The second status information per all the way corresponding to first port is prestored in control system, if control system want to certain first
The controlled device of port communication connection sends control signal, will be right by first port institute through the second status information feedback module
To control module, control module can be determining need according to the second status information for receiving in time for the second status information feedback answered
Set up the communication connection between which first port and second port.
Used as a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, its second status information is anti-
Feedback module 4, at least digital output end communication connection all the way with control system；Wherein,
Second status information includes the combination of the data signal of multichannel second, in the way and control system of the second data signal
Way with the digital output end that the second status information feedback module is communicated to connect is consistent, and each second data signal is right through its
The digital output end of the path control system answered is input into the second status information feedback module, through the second status information feedback module
Transmit to control module.Specifically, control system need to only provide finite number word amount output end (cost be far below analog quantity mould
Block), it is possible to the combination (the second status information) of the second data signal exported through above-mentioned digital output end is fed back to
Two-state information feedback module, and control module according to the second status information obtained from the second status information feedback module just
Which can determine to need to set up the communication connection between first port and second port in time.
Used as a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, its signal transmission module 1 is wrapped
Include 2nRoad first port, wherein n are the digital quantity input communicated to connect with first state information feedback module 3 in control system
Way, or
N is the way in control system with the digital output end of the communication connection of the second status information feedback module 4.
Specifically, if the timesharing that the signal circuit in the embodiment of the present invention is used for multi pass acquisition signal is input into, n is
The way of the digital quantity input communicated to connect with first state information feedback module 3 in control system；If the embodiment of the present invention
In signal circuit be used for multi-way control signals timesharing export when, n be control system in the second status information feedback
The way at the digital output end of the communication connection of module 4.Because digital quantity signal only includes 0 or 1, then by control system
The combination of the first data signal of the digital quantity input input of this n road and first state information feedback module communication connection or
The second numeral that the digital output end communicated to connect by this n road in control system and the second status information feedback module is exported
The combination of signal, it is possible to which correspondence goes out 2nPlant first state information or the second status information.Visible signal transport module passes through
Set 2nRoad first port, just can with this 2nPlant first state information or the second status information is corresponded, do not result in and connect
The waste of mouth.
As a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, n=3.Wherein table 1 is given
During n=3, a specific example of corresponding first port under each first state information, now signal transmission module
First port has 8, and we are represented with A1-A8 respectively.
Table 1
As can be seen from Table 1, during n=3, it is input into not to control system by each digital quantity input in control system
The permutation and combination of the first same data signal, including 000,001,010,011,100,101,110,111 this 8 kinds of first states letters
Breath, every kind of first state information corresponding first port, such as first state information 100 corresponding first port A5, Ye Ji all the way
When the first state information that one feedback of status module feedback is returned is 100, control system is it is determined that currently received signal comes
From first port A5.During n=3, corresponding first port is close with first state information state under each second status information
Seemingly, will not be repeated here.And for being integrated with the terminal board of above-mentioned signal circuit, the terminal board by 8 tunnel analog quantitys/
Digital quantity input signal is exported by second port or 8 tunnel analog quantitys/discrete control signal is passed through into certain first end all the way
Mouth output to corresponding controlled device, namely control system only needs to an analog module or digital module, it is possible to
The timesharing input or the timesharing of 8 tunnel control signals output to 8 tunnels collection signal are realized, needed for greatly reducing control system
The quantity of analog module and digital module, reduces the cost of control system.
Used as a kind of alternatively implementation method, the signal circuit in the embodiment of the present invention, control system includes distribution
Formula control (DCS) system, Programmable logical controller (PLC) system and remote measurement and control (RTU) system.Certainly, except cited
Mentioned kind control system outside, other control systems are also applied for the signal circuit in the embodiment of the present invention.
Present invention also offers a kind of terminal board, including at least one above-mentioned various signal circuits.Specifically, if having
Multiple signals are input into or export, and first port can be expanded by way of cascading above-mentioned signal circuit,
Analog module or the quantity of digital module now in corresponding control system can also increase to the signal transmission with cascade
Circuit identical quantity.
Terminal board in the embodiment of the present invention, because its control module only sets up wherein first port and second all the way every time
Communication connection between port, namely the analog signalses or digital quantity signal that gather all the way are only had through second port every time
Output, realizes the timesharing input of multichannel input signal；Or each control signal all the way that only has is passed through and second port foundation
The first port output of communication connection, realizes the timesharing output of control signal of not going the same way.The signal circuit is applied to
During technical field of electric control, the multiple analog quantitys that will can collect or digital quantity signal by the different time periods transmit to
The signal input channel of same path control system, or by the signal output channels of same path control system, when different
Between section send corresponding control signals to multiple different controlled devices.Namely control system only needs to one or lesser amt
Analog module or digital module, it is possible to realize to the timesharing input of multi pass acquisition signal or multi-way control signals
Timesharing output, the quantity of analog module and digital module needed for greatly reducing control system reduces control
The cost of system.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of signal circuit, it is characterised in that including：
Signal transmission module, it includes at least two-way first port and all the way second port；
Control module, only sets up communication connection wherein all the way between the first port and the second port every time.
2. signal circuit according to claim 1, it is characterised in that the control module is according to prefixed time interval
Set up the communication connection between first port and the second port described in each road.
3. signal circuit according to claim 1, it is characterised in that if first port and corresponding letter described in per road
The communication connection of number harvester, then all the way digital quantity input of the second port with control system or analog input end
Communication connection；
If the end of digital output all the way of the second port and the control system or all the way analog output end communication link
Connect, first port described in Ze Mei roads is communicated to connect with the control end of corresponding controlled device.
4. signal circuit according to claim 3, it is characterised in that also include：
First state information feedback module, the institute all the way that communication connection is set up with the second port is obtained from the control module
State the first state information corresponding to first port, and by the first state information transfer to the control system.
5. signal circuit according to claim 4, it is characterised in that：
The first state information feedback module, at least digital quantity input communication connection all the way with the control system；Its
In,
The first state information includes the combination of the data signal of multichannel first, way and the control of first data signal
Way in system processed with the digital quantity input that the first state information feedback module is communicated to connect is consistent, and each described the
One data signal is input into the control system through the digital quantity input of its corresponding control system described all the way.
6. signal circuit according to claim 3, it is characterised in that also include：
Second status information feedback module, being obtained from the control system will set up communication connection all the way with the second port
The second status information corresponding to the first port, and second status information is transmitted to the control module；
The control module, the first end described all the way according to corresponding to second status information sets up second status information
Communication connection between mouth and the second port.
7. signal circuit according to claim 6, it is characterised in that：
The second status information feedback module, at least digital output end communication connection all the way with the control system；Its
In,
Second status information includes the combination of the data signal of multichannel second, way and the control of second data signal
Way in system processed with the digital output end that the second status information feedback module is communicated to connect is consistent, and each described the
Two digital signal is input into the second status information feedback mould through the digital output end of its corresponding control system described all the way
Block, through the second status information feedback module transfer to the control module.
8. the signal circuit according to claim any one of 1-7, it is characterised in that：
The signal transmission module includes 2nRoad first port, wherein n are anti-with the first state information in the control system
The way of the digital quantity input of feedback module communication connection, or
N is the way at the digital output end communicated to connect with the second status information feedback module in the control system.
9. signal circuit according to claim 8, it is characterised in that n=3.
10. a kind of terminal board, it is characterised in that including the signal circuit described at least one claim any one of 1-9.
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| CN201611042491.1A CN106773903A (en) | 2016-11-22 | 2016-11-22 | A kind of signal circuit and terminal board |
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| CN201611042491.1A CN106773903A (en) | 2016-11-22 | 2016-11-22 | A kind of signal circuit and terminal board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273599A (en) * | 2018-12-05 | 2020-06-12 | 汉能移动能源控股集团有限公司 | Control system and control cabinet |
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