CN106054800A - PLC remote monitoring system - Google Patents
PLC remote monitoring system Download PDFInfo
- Publication number
- CN106054800A CN106054800A CN201610689245.9A CN201610689245A CN106054800A CN 106054800 A CN106054800 A CN 106054800A CN 201610689245 A CN201610689245 A CN 201610689245A CN 106054800 A CN106054800 A CN 106054800A
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- Prior art keywords
- chip
- circuit
- module
- plc
- serial
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Classifications
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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
- G05B19/058—Safety, monitoring
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Programmable Controllers (AREA)
Abstract
The invention discloses a PLC remote monitoring system. The PLC remote monitoring system comprises an HMI module used for data input and display, a PLC module used for automatic real-time control, a remote communication control module and a remote communication control client, wherein one end of the remote communication control module is connected with the PLC module, the other end of the remote communication control module is connected with the HMI module, the remote communication control module is used for managing data transmission between the PLC module and the HMI module, the remote communication control client is connected with the remote communication control module and is used for obtaining the management data of the remote communication control module, and after the network connection is established between the remote communication control client and the remote communication control module, a client is capable of obtaining the data of the remote communication control module or controlling the remote communication control module to send an instruction command to the PLC module so as to control the action of the PLC module.
Description
Technical field
The present invention relates to industry control automatic field, particularly relate to a kind of PLC long distance control system.
Background technology
At present PLC long distance control system generally comprise HMI man machine interface SamkoonHMI, PLC and
RS232/485/422 order wire.HMI is the abbreviation of HumanMachineInterface, also cries man machine interface.HMI be user and
Carry out data interaction and the medium of information exchange between PLC, it realize the inner form of information and the mankind can with accept form it
Between conversion.The kind of interface of HMI is a lot, has RS232, RS485, RS422 interface, and HMI is connected with PLC, PLC by serial ports
The data feedback collected is to above HMI, or user sends commands to PLC by HMI, and control PLC carries out the action of correspondence.
This man-machine interaction mode staff must stay in working site, if staff leaves just cannot pass through HMI control PLC
Or obtain PLC information by HMI.
Summary of the invention
It is an object of the invention to provide a kind of PLC long distance control system, it is intended to solve work in existing PLC monitoring system
Make the problem that personnel are the most uncontrollable, obtain PLC information.
The invention provides a kind of PLC long distance control system, including: for the input of data, the HMI module of display, use
The PLC module, relay, telecommunication control module and the telecommunication that control in real time in automatization control client；
Wherein said relay is connected to described PLC module, for external connection electrical apparatus equipment；
Telecommunication control module one end is connected to PLC module, and the described telecommunication control module other end is connected to institute
State HMI module, for managing the data transmission between described PLC module and described HMI module；
Telecommunication controls client and is connected with described telecommunication control module, is used for obtaining described telecommunication control
The management data of molding block.
Further, telecommunication control module is connected with described HMI module two-way communication by R485 or R422 cable.
Further, telecommunication control module is connected with described PLC module by RS232, R485 or R422 cable.
Further, telecommunication controls client and controls mould by cable network or wireless network with described telecommunication
Block connects.
Further, telecommunication control module includes telecommunication control unit circuit, described telecommunication control unit electricity
Road includes the first serial circuit for transceiving data, the second serial circuit for transceiving data, on-off circuit, MCU circuit；
On-off circuit is connected with described first serial circuit, described second serial circuit, for direct-connected or turn off described
Data communication between one serial port circuit and described second serial circuit；
MCU circuit is connected with described first serial circuit, described second serial circuit and described on-off circuit, for
Described on-off circuit together, controls the direct-connected or pass of data communication between described first serial circuit and described second serial circuit
Disconnected.
Further, first serial circuit includes that chip U9, described chip U9 use model to be the transmitting-receiving of SN65HVD82DR
Device.
Further, second serial circuit includes that chip U11 and chip U13, described U11 and chip U13 all use model
Transceiver for SN65HVD82DR.
Further, on-off circuit includes that chip U5, the model of described chip U5 are SN74LVC245.
Further, the other end of one diode D23 of the first pin serial connection, diode D23 of chip U9 connects resistance
One end of R64, the other end of resistance R64 is connected to the 3rd pin of chip U5；
One end of the 4th pin serial connection resistance R119 of chip U9, the other end of resistance R119 is connected to described chip U5
The 18th pin；
One diode D31 of the first pin serial connection of chip U11, the other end of diode D31 is connected to the one of resistance R91
End, the other end of resistance R91 is connected to second pin of chip U5；
One end of pin 4 series resistance R116 of chip U13, the other end of resistance R116 is connected to described chip U5's
17th pin.
This beneficial effect: client opens remote client software on the mobile phone or PC of telecommunication control client
Set up with telecommunication control module after network is connected, the data of telecommunication control module can be got, or control remote
Journey communication control module sends designated command, the action of control PLC module to PLC module.
Accompanying drawing explanation
Fig. 1 is a kind of PLC long distance control system structural representation in one embodiment of the invention；
Fig. 2 is communication controller circuit structured flowchart in one embodiment of the invention；
Fig. 3 is the circuit diagram of first serial circuit in one embodiment of the invention；
Fig. 4 is the circuit diagram of second serial circuit in one embodiment of the invention；
Fig. 5 is the circuit diagram of one embodiment of the invention breaker in middle circuit.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and be embodied as
The present invention is described in further detail by mode.
Fig. 1 is a kind of PLC long distance control system structural representation in one embodiment of the invention.With reference to Fig. 1, the present invention one is real
Execute example and provide a kind of PLC long distance control system, including: for the input of data, the HMI module 100 of display, for automatization
The PLC module 200, relay 300, telecommunication control module 400 and the telecommunication that control in real time control client 500；
Wherein, relay 300 is connected to PLC module 200, for external connection electrical apparatus equipment；
Telecommunication control module 400 one end is connected to PLC module 200, described telecommunication control module 400 other end
Being connected to HMI module 100, for managing the data transmission between PLC module 200 and HMI module 100, telecommunication controls mould
Block 400 is connected with the two-way communication of described HMI module 100 by R485 or R422 cable, and telecommunication control module 400 is passed through
RS232, R485 or R422 cable is connected with PLC module 200.
Telecommunication controls client 500 and is connected with described telecommunication control module 400, is used for obtaining and described remotely leads to
The management data of letter control module 400, telecommunication control client 500 by cable network or wireless network with described remotely
Communication control module 400 connects.
Wherein, the touch screen that HMI module 100 selects model to be AK-070AS, PLC module 200 selects model to be FX-3U's
Programmable logic controller (PLC), telecommunication controls client 500 and uses Android mobile phone to install on corresponding mobile phone A PP or PC
Use software.
Fig. 2 is communication controller circuit 41 structured flowchart in one embodiment of the invention.With reference to Fig. 2, telecommunication controls mould
Block 400 includes that telecommunication control unit circuit 410, described telecommunication control unit circuit 410 include for transceiving data
One serial port circuit 411, the second serial circuit 412 for transceiving data, on-off circuit 413, MCU circuit 414；
On-off circuit 413 is connected with described first serial circuit 411, described second serial circuit 412, for direct-connected or pass
Disconnected data communication between described first serial circuit 411 and described second serial circuit 412；
MCU circuit 414 and described first serial circuit 411, described second serial circuit 412 and described on-off circuit
413 connect, and for together with described on-off circuit 413, control described first serial circuit 411 and described second serial circuit
Direct-connected or the shutoff of data communication between 412.
Fig. 3 is the circuit diagram of first serial circuit 411 in one embodiment of the invention；Fig. 4 is in one embodiment of the invention
The circuit diagram of two serial port circuits 412；Fig. 5 is the circuit diagram of one embodiment of the invention breaker in middle circuit 413.With reference to Fig. 3,4,5, the
One serial port circuit 411 includes that chip U9, described chip U9 use model to be the transceiver of SN65HVD82DR.
Second serial circuit 412 includes that chip U11 and chip U13, described U11 and chip U13 all use the model to be
The transceiver of SN65HVD82DR.
On-off circuit 413 includes that chip U5, the model of described chip U5 are SN74LVC245.First serial circuit 411
The pin 1 of chip U9 is connected a diode D23, and it is 1500 ohm that the other end of diode D23 is connected to a resistance value
One end of resistance R64, the other end of resistance R64 is connected to the pin 3 of the chip U5 that model is SN74LVC245.
The pin 4 of the chip U9 of first serial circuit 411 is connected the one of resistance R119 that resistance value is 1500 ohm
End, the other end of resistance R119 is connected to the pin 18 of the chip U5 that described model is SN74LVC245.First serial circuit
The pin 3 of the chip U9 of 411 is connected with MCU circuit 414.The pin 1 of the chip U11 of second serial circuit 412 connects one two
Pole pipe D31, the other end of diode D31 is connected to the one end of the resistance R91 that resistance value is 1500 ohm, resistance R91's
The other end is connected to the pin 2 of the chip U5 that model is SN74LVC245.The pin 4 of the chip U13 of second serial circuit 412
The resistance value of connecting is one end of the resistance R116 of 1500 ohm, and the other end of resistance R116 is connected to described model and is
The pin 17 of the chip U5 of SN74LVC245.The pin 3 of the chip U13 of second serial circuit 412 is connected with MCU circuit 414.
The operation principle of the communication controller circuit that the embodiment of the present invention provides is as follows:
The pin 1 of the chip U5 of on-off circuit 413 is connected with MCU circuit 414, MCU circuit 414 control chip U5's
The direction switching of A, B, when the pin 1 of chip U5 is high level, direction is A to B, when the pin 1 of chip U5 is low level, direction
For B to A.
The pin 19 of chip U5 is connected with MCU circuit 414, when pin 19 is low level, then switchs enable, first serial electricity
Road 1 and second serial circuit 2 Direct Communication, do not have any time delay, MCU circuit 414 to be responsible for monitored data；Pin 19 is high level
Time, then switch and do not enable, first serial circuit 1 and second serial circuit 2 can not Direct Communication, be through MCU circuit 414 transfer
Complete communication.
The first situation: when chip U5 switch enables, and during chip U5 direction A to B, MCU circuit 414 control chip U9 draws
Foot 2, pin 3 are low level, and first serial circuit 411 is for sending data, and the Lu Jingwei of signal is inputted by HMI module 100, passes through
D26, D27 protect diode, and electric capacity C53, electric capacity C54, resistance R77, resistance R79, and resistance R82, resistance R84 composition is anti-dry
Hold together filter circuit, enter into pin 7 and the pin 6 of chip U9, then through the pin 1 of chip U9, pin 4, enter chip U5 and draw
Foot 2, pin 3, then from chip U5 pin 17 through resistance R116, through chip U13 pin 4, the Transistor-Transistor Logic level signal of receipts is turned by U13
It is changed to differential signal passed through by resistance R111, resistance R115, resistance R107, resistance R108 by the pin 6 of chip U13, pin 7,
The anti-interference filter circuit of diode C67, diode C65 composition, then give through overprotection diode D42, protection diode D43
Export to PLC module 200.
The second situation: when chip U5 switch enables, and during chip U5 direction B to A, MCU circuit 414 control chip U9 draws
Foot 2, pin 3 are high level, and first serial circuit 411 is for receiving data, and the Lu Jingwei of signal is inputted by PLC module 200, passes through
Protection diode D34, protects diode D45, then through by resistance R98, resistance R94, resistance R97, resistance R105, diode
The anti-interference filter circuit of C58, diode C60 composition, enters the pin 6 of chip U11, pin 7, and chip U11 will receive difference
Signal transfers Transistor-Transistor Logic level to and is exported to on-off circuit 413 chip U5 by the 1st foot of chip U11 through diode D31, resistance R91,
Again by chip U5, send U9 to, HMI module 100 export.
The third situation: when chip U5 switch does not enables, and the pin 2 of MCU circuit 414 control chip U9, pin 3 are low electricity
Flat, first serial circuit 411 is for sending data, and the Lu Jingwei of signal is inputted by HMI module 100, protects two poles through D26, D27
Pipe, and electric capacity C53, electric capacity C54, resistance R77, resistance R79, resistance R82, resistance R84 form anti-interference filter circuit, enter
To pin 7 and the pin 6 of chip U9, then through the pin 1 of chip U9, pin 4, enter MCU circuit 414, then from MCU circuit
414 through resistance R116, and through chip U13 pin 4, the Transistor-Transistor Logic level signal of receipts is converted to differential signal by chip U13's by U13
Pin 6, pin 7 are through being made up of resistance R111, resistance R115, resistance R107, resistance R108, diode C67, diode C65
Anti-interference filter circuit, then through overprotection diode D42, protection diode D43 delivers to PLC module 200 and exports.
4th kind of situation: when chip U5 switch does not enables, the pin 2 of MCU circuit 414 control chip U9, pin 3 are high electricity
Flat, first serial circuit 411 is for receiving data, and the Lu Jingwei of signal is inputted by PLC module 200, through overprotection diode D34,
Protection diode D45, then through by resistance R98, resistance R94, resistance R97, resistance R105, diode C58, diode C60 group
The anti-interference filter circuit become, enters the pin 6 of chip U11, pin 7, and chip U11 will receive differential signal and transfer Transistor-Transistor Logic level to
Exported to MCU circuit 414 through diode D31, resistance R91 by the 1st foot of chip U11, then by MCU circuit 414, send to
U9, is exported by HMI module 100.
One or more technical schemes that the embodiment of the present invention provides, at least techniques below effect:
1) client opens remote client software with long-range on the mobile phone or PC of telecommunication control client 500
After communication control module 400 sets up network connection, the data of telecommunication control module 400 can be got, or control remote
Journey communication control module 400 sends designated command, the action of control PLC module to PLC module 200.
2) telecommunication control unit 4 one end is connected to PLC module 200, when telecommunication control unit 4 gives PLC module 200
When sending designated command, it is possible to control PLC module 200 action.
3) telecommunication control module 400 other end is connected to HMI module 100, when telecommunication control unit 4 gives HMI mould
When block 100 transmits information, it is possible to show on HMI module 100.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be as the criterion.
Claims (9)
1. a PLC long distance control system, it is characterised in that including: for the input of data, the HMI module of display, for from
PLC module, relay, telecommunication control module and telecommunication that dynamicization controls in real time control client；Wherein said
Relay is connected to described PLC module, for external connection electrical apparatus equipment；Described telecommunication control module one end is connected to PLC mould
Block, the described telecommunication control module other end is connected to described HMI module, is used for managing described PLC module and described HMI mould
Data transmission between block；Described telecommunication controls client and is connected with described telecommunication control module, is used for obtaining institute
State the management data of telecommunication control module.
PLC long distance control system the most according to claim 1, it is characterised in that described telecommunication control module is passed through
R485 or R422 cable is connected with described HMI module two-way communication.
PLC long distance control system the most according to claim 1, it is characterised in that described telecommunication control module is passed through
RS232, R485 or R422 cable is connected with described PLC module.
PLC long distance control system the most according to claim 1, it is characterised in that described telecommunication controls client and leads to
Cross cable network or wireless network to be connected with described telecommunication control module.
5. according to the PLC long distance control system one of claim 2-4 Suo Shu, it is characterised in that described telecommunication controls mould
Block includes that telecommunication control unit circuit, described telecommunication control unit circuit include the first serial electricity for transceiving data
Road, the second serial circuit for transceiving data, on-off circuit, MCU circuit；Described on-off circuit and described first serial electricity
Road, described second serial circuit connect, for direct-connected or turn off between described first serial circuit and described second serial circuit
Data communication；Described MCU circuit is with described first serial circuit, described second serial circuit and described on-off circuit even
Connect, for together with described on-off circuit, control data communication between described first serial circuit and described second serial circuit
Direct-connected or turn off.
PLC long distance control system the most according to claim 5, it is characterised in that described first serial circuit includes chip
U9, described chip U9 use model to be the transceiver of SN65HVD82DR.
PLC long distance control system the most according to claim 6, it is characterised in that described second serial circuit includes chip
The transceiver that U11 and chip U13, described U11 and chip U13 all use model to be SN65HVD82DR.
PLC long distance control system the most according to claim 7, it is characterised in that described on-off circuit includes chip U5, institute
The model stating chip U5 is SN74LVC245.
PLC long distance control system the most according to claim 8, it is characterised in that first pin serial connection of described chip U9
The other end of one diode D23, diode D23 connects one end of resistance R64, and the other end of resistance R64 is connected to chip
3rd pin of U5；One end of the 4th pin serial connection resistance R119 of described chip U9, the other end of resistance R119 is connected to
18th pin of described chip U5；Another of one diode D31 of the first pin serial connection, diode D31 of described chip U11
End is connected to one end of resistance R91, and the other end of resistance R91 is connected to second pin of chip U5；Described chip U13 draws
One end of foot 4 series resistance R116, the other end of resistance R116 is connected to the 17th pin of described chip U5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610689245.9A CN106054800A (en) | 2016-08-19 | 2016-08-19 | PLC remote monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610689245.9A CN106054800A (en) | 2016-08-19 | 2016-08-19 | PLC remote monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106054800A true CN106054800A (en) | 2016-10-26 |
Family
ID=57195213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610689245.9A Pending CN106054800A (en) | 2016-08-19 | 2016-08-19 | PLC remote monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106054800A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600309A (en) * | 2018-03-21 | 2018-09-28 | 浙江佳乐科仪股份有限公司 | A kind of PLC device operational system based on DTU transparent transmissions |
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| CN201177761Y (en) * | 2008-04-17 | 2009-01-07 | 济南仙峰泰山化工设备有限公司 | PLC self-control system of radial tyre power station |
| CN203658792U (en) * | 2013-12-24 | 2014-06-18 | 天津瑞辰海洋工程有限公司 | Plc control system |
| CN204462776U (en) * | 2015-01-29 | 2015-07-08 | 万源市清阳科技有限公司 | A kind of hen house environment monitoring system |
| CN105182890A (en) * | 2015-08-12 | 2015-12-23 | 郭鸿沂 | Dirt intelligence collection management system |
| CN205318206U (en) * | 2016-01-30 | 2016-06-15 | 深圳市显控科技股份有限公司 | PLC remote monitering system |
-
2016
- 2016-08-19 CN CN201610689245.9A patent/CN106054800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201177761Y (en) * | 2008-04-17 | 2009-01-07 | 济南仙峰泰山化工设备有限公司 | PLC self-control system of radial tyre power station |
| CN203658792U (en) * | 2013-12-24 | 2014-06-18 | 天津瑞辰海洋工程有限公司 | Plc control system |
| CN204462776U (en) * | 2015-01-29 | 2015-07-08 | 万源市清阳科技有限公司 | A kind of hen house environment monitoring system |
| CN105182890A (en) * | 2015-08-12 | 2015-12-23 | 郭鸿沂 | Dirt intelligence collection management system |
| CN205318206U (en) * | 2016-01-30 | 2016-06-15 | 深圳市显控科技股份有限公司 | PLC remote monitering system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600309A (en) * | 2018-03-21 | 2018-09-28 | 浙江佳乐科仪股份有限公司 | A kind of PLC device operational system based on DTU transparent transmissions |
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Application publication date: 20161026 |
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| RJ01 | Rejection of invention patent application after publication |