CN201616018U - PLC type teledata measurement and control unit RTU - Google Patents
PLC type teledata measurement and control unit RTU Download PDFInfo
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- CN201616018U CN201616018U CN2009201616814U CN200920161681U CN201616018U CN 201616018 U CN201616018 U CN 201616018U CN 2009201616814 U CN2009201616814 U CN 2009201616814U CN 200920161681 U CN200920161681 U CN 200920161681U CN 201616018 U CN201616018 U CN 201616018U
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- logic controller
- teledata
- measurement
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Abstract
The utility model relates to a PLC type teledata measurement and control unit RTU, relating to a data acquisition control device in a telemonitoring control system. The PLC type teledata measurement and control unit RTU is mainly characterized by comprising a programmable logic controller PLC, a receiving module, an electric quantity module, a GPRS module and the like, wherein radio signals of all monitoring points are acquired by the receiving module and the electric quantity module, then delivered to the programmable logic controller PLC so as to be converted into digital information, and then transmitted to a monitoring center by the GPRS module; the GPRS module receives the control signals sent by the monitoring center, then the control signals are transmitted to the programmable logic controller PLC to be converted into corresponding digital signals used for controlling a relay and an execution mechanism. The PLC type teledata measurement and control unit RTU has the benefits that the performance is stable, the reliability is high, the transmission and conversion signals are in zero distortion, the capacity is large, and continuous control such as real-time remote monitoring, starting or stopping and the like on a monitored object can be realized; and the PLC type teledata measurement and control unit RTU has small volume, compact structure, convenient maintenance, installation and use, and prior alarm function, and is applicable to unmanned monitored objects in inaccessible remote areas.
Description
Technical field
The utility model relates to the data acquisition control device in a kind of remote monitoring and controlling system.
Background technology
The industrial website of, unattended duty big at distance range, as each the change/distribution substation in each producing well of oil field, some workshop of refinery, the electric power system, some websites in the water supply hot duct etc., need to adopt the distributed remote monitor control system to carry out remote monitoring, monitoring or control, this type systematic is called SCADA.These systems mainly are made up of computing machine that is positioned at control room or monitoring center and the data measurement and control unit RTU that is positioned at the remote terminal station at each monitored object scene, are connected by digital communications network between computing machine and each RTU.SCADA is the collection site data in real time, to monitored object carry out at a distance comprehensively, real time monitoring, test or control, for produce, scheduling, management provide data necessary.At present actual production scene, what the main element among its data measurement and control unit RTU adopted is single-chip microcomputer, because the software in the single-chip microcomputer is constantly upgraded, can not form reliable and stable fixation application program, has limited its range of application, not production in enormous quantities.Because product lot quantity is little, be welded by artificial line, so its unstable properties, it is unreliable to work, during rig-site utilization, the RTU fault often occurs, make the data of gathering or transmitting produce error, the actual motion state of production scene accurately and timely can not be transferred to Surveillance center, not reach the purpose of remote monitor.Will keep in repair after breaking down, the workload that field maintemance is repaired is very big.
The utility model content
The purpose of this utility model provides a kind of dependable performance, PLC formula teledata measurement and control unit RTU easy to use, uses it to program as required, monitors or controls according to program.
Technical solution of the present utility model is to realize like this, a kind of PLC formula teledata measurement and control unit RTU, constitute by cabinet and the circuit board that is installed in the cabinet, its special character is, the power switch of on circuit board, installing, power module, Programmable Logic Controller PLC, receiver module, the electric weight module, the GPRS module, relay, terminal row, and they are connected to form teledata measurement and control unit RTU by lead, by receiver module, after the electric weight module collects the radio signal of each monitoring point, be transported to Programmable Logic Controller PLC and change into digital signal, be transmitted into Surveillance center through the GPRS module; The control signal that Surveillance center sends is sent to Programmable Logic Controller PLC and changes into corresponding electric signal, the folding of pilot relay, thereby control executing mechanism after being received by the GPRS module.
In above-mentioned technical solution, its special character also is, touch screen is installed in cabinet, and touch-screen is housed on touch screen, and Programmable Logic Controller PLC is transported to touch-screen after the signal of each monitoring point is changed into digital signal.
Technical solution of the present utility model can also realize like this, a kind of PLC formula teledata measurement and control unit RTU, constitute by cabinet and the circuit board that is installed in the cabinet, its special character is, power switch is installed on circuit board, power module, Programmable Logic Controller PLC, the analog quantity load module, the electric weight module, photoelectric commutator, relay, terminal row, and they are connected to form teledata measurement and control unit RTU by lead, by the analog quantity load module, after the electric weight module collects the electric signal of each monitoring point by lead, be transported to Programmable Logic Controller PLC and change into digital signal, signal conveys is arrived Surveillance center through photoelectric commutator; The control signal that Surveillance center sends is transported to Programmable Logic Controller PLC by photoelectric commutator, changes into corresponding electric signal, the folding of pilot relay, thereby control executing mechanism.
In above-mentioned technical solution, its special character also is, touch screen is installed in cabinet, and touch-screen is housed on touch screen, and Programmable Logic Controller PLC is transported to touch-screen after the signal of each monitoring point is changed into digital signal.
Usefulness of the present utility model is, (1) because the main built-in element that adopts is Programmable Logic Controller PLC, communication module GPRS, receiver module and electric weight module etc., they all are standard products, the reliability height, stability is strong, and the signal of accepting, transmitting and change is 0 distortion, and data accurately and reliably, capacity is big, can realize uninterruptedly monitoring target real-time remote monitoring or startup, control such as stop.(2) owing to the integrated degree height of its critical piece, volume is little, and compact conformation adopts plug-in type connection terminal, is convenient to maintenance, repair, replacing, and is easy to install.(3) because the power module wide input voltage range that adopts is applicable to the occasion that voltage fluctuation is big, also can adopt direct current supply, to adapt to power free scene, as remote areas such as gas well, Gobi desert, deserts.(4) analog quantity and digital quantity input and output extendability are strong, can expand to 7 modules, are specially adapted to such as signal data acquisition, storage in the commercial production of many monitoring targets of producing well.All operations all can adopt visualized operation, and is easy to operate, and fault diagnosis is directly perceived, is convenient to fault and gets rid of.(5) because the module that is adopted has profuse instruction set, steering order is abundant, can realize multiple functions such as counting, pulse generation, sequential control.(6) have preferential warning function, no matter system is carrying out which kind of operation or operation, breaks down when a certain position, can realize preferential warning, gains time for taking measures, and in time fixes a breakdown.(7) wireless transmission method in the utility model (first kind of scheme) is mainly used in the geographic area and disperses, lays communication cable difficulty, the less occasion of data packets for transmission, be suitable for be distributed in regions such as mountain area, hills, lake, desert vast, have inconvenient traffic, unattended monitoring target.It is relatively concentrated that wire transmission mode can be used for detected object, and the occasion of being convenient to connect up (as the workshop of refinery) particularly has under the utilizable situation of ready-made optical cable.(8) cabinet can be made into and have heat-insulation layer, heating and heat sinking function, can be applied to-30 ℃-50 ℃ temperature range, to be applicable to abominable field environment.
Description of drawings
Fig. 1 is the circuit diagram of first kind of scheme of the utility model.Be applicable to that this device and each monitoring point and control center adopt the mode of wireless connections.
Fig. 2 is the circuit diagram of second kind of scheme of the utility model.Be applicable to that this device and each monitoring point and control center adopt the mode of wired connection.
Embodiment
Example 1, cabinet adopt the steel plate of 0.6 millimeters thick to be sized to the casing with door according to design.Power module selects for use AC220/DC24, Programmable Logic Controller PLC to select for use S7-200, receiver module to select for use NRM02, electric weight module to select for use SMT18N, wireless receiving emission GPRS module to select for use WST01, relay to select for use MY2NJ-DC24V, terminal row to select 280-101 for use.Above element is fixedly mounted on the circuit board.The A of power switch, B, C three-phase are connected with the contact of terminal row (terminal number, down with) XT13, XT14, XT15 respectively, and the contact XT12 of N line and terminal row is connected.Contact 1L, the N of power module is connected by C line, the N line of lead and power supply, the contact of power module+24 are connected by the contact L of lead 111 and Programmable Logic Controller PLC, and the contact of power module+24,0 are connected with contact XT4, the XT5 of terminal row respectively.Contact XT5 by lead 112 and terminal row after the last tip node of relay 1KC, 2KC, 3KC interconnects is connected, the following tip node of relay 1KC, 2KC, 3KC is connected by the contact 00,01,02 of lead 207,208,209 and Programmable Logic Controller PLC respectively, the end of the normally opened contact 3KC1 of relay 3KC is connected by the contact XT15 of lead 201 and terminal row, the other end is connected by the contact XT12 of lead 203, warning electric bell L and terminal row, and contact XT10, the XT11 of normally closed contact 3KC2 and terminal row are connected.The normally opened contact two ends of relay 2KC are connected with contact XT8, the XT9 of terminal row respectively, and the normally opened contact two ends of relay 1KC are connected with contact XT6, the XT7 of terminal row respectively.Relay 3KC control warning electric bell L, relay 1KC, 2KC control the startup of pumping-unit motor and stop.How much quantity of relay can increasing and decreasing according to the reference mark.Contact D+, the D-of receiver module is connected by the contact 3,8 in the input interface of cable and Programmable Logic Controller PLC with after contact D+, the D-of electric weight module is connected respectively by lead.The contact of the contact of the contact of receiver module+24,0, electric weight module+24,0, GPRS module+24,0 and contact+24,0 of touch-screen be connected to together, and be connected by contact XT4, the XT5 of lead and terminal row.Contact A, the B of electric weight module, C, N are connected by contact XT13, XT14, XT15, the XT12 of lead and terminal row respectively, contact I1, the I2 of electric weight module is connected mutually with current transformer A on the scene, contact I3, I4 summation current transformer B are connected mutually, and contact I5, I6 summation current transformer C are connected mutually.The interface of GPRS module is connected by the contact 3,8 in the interface of lead and Programmable Logic Controller PLC, the input interface of touch-screen is connected by the contact in the output interface of lead Programmable Logic Controller PLC 3,8, the input end contact M3 of Programmable Logic Controller PLC, 0,1 reduction of fractions to a common denominator Guo lead 101,102,103 and contact XT3, XT2, the XT1 of terminal row be connected.Circuit board is fixedly mounted in the cabinet.Touch-screen is installed on the touch screen, and touch screen is fixedly mounted on the front of cabinet interior circuit board, and the output port of Programmable Logic Controller PLC is connected by the input port of lead and touch-screen.As required, can install heat-insulation layer, heat tape and exhaust fan additional in the cabinet.
During use, the relevant detection instrument is installed in each monitoring point, this device is installed in relative appropriate location placed in the middle with each monitoring point.During work, after receiver module, electric weight module collect the radio signal of sending each monitoring point, be transported to Programmable Logic Controller by lead and change into numerical information, GPRS is transmitted into Surveillance center through wireless transmitter module, can check the situation of each monitoring point at any time or they are printed in Surveillance center.If will control starting or stoping of certain monitoring point, from Surveillance center control signal is sent out, receive by wireless transmit receiver module GPRS, and be sent to Programmable Logic Controller PLC and change into corresponding electric signal, by the folding of pilot relay, thereby control executing mechanism is finished control procedure.Can the relay of respective numbers be installed according to what of reference mark.If the situation that will watch each monitoring point in the working site can be watched immediately by touch-screen.
Example 2, cabinet are made with example 1.Power module selects for use AC220/DC24, Programmable Logic Controller PLC to select for use 6ES7214-2BD23-OXB8, analog quantity load module to select for use 6ES7-231-OHC22-OXAO, electric weight module to select for use EDA9033DC, photoelectric commutator to select PB-B-485 for use, relay selects for use MY2NJ-DC24V, terminal row to select 280-101 for use, and above element is fixedly mounted on the circuit board.The A of power switch, B, C three-phase are connected with terminal row contact (terminal number) XT31, XT32, XT33 respectively, and the N line is connected with terminal row contact XT34.Contact 1L, the N of power module are connected with power supply by lead, and the contact of power module+24,0 are connected with contact XT23, the XT24 of terminal row respectively, and the contact of power module+24 are connected by the contact L of lead 127 and Programmable Logic Controller PLC.Relay 0KC, 1KC, contact XT24 by lead 128 and terminal row after the last tip node of 2KC interconnects is connected, relay 0KC, 1KC, the following tip node of 2KC is respectively by lead 207,208,209 and the contact 00 of Programmable Logic Controller PLC, 01,02 is connected, normally opened contact 2,KC1 one end of relay 2KC is connected by the contact XT33 of lead 201 and terminal row, the other end is by lead 203, the contact XT34 line of warning electric bell L and terminal row is connected, another normally opened contact 2KC2 two ends of relay 2KC respectively with terminal row contact XT29, XT30 is connected.The normally opened contact two ends of relay 1KC are connected with contact XT27, the XT28 of terminal row respectively, and the normally opened contact two ends of relay 0KC are connected with terminal row contact XT25, XT26 respectively.Relay 2KC control warning electric bell L, relay 0KC, 1KC control the startup of oil pumper and stop.How much quantity of relay can increasing and decreasing according to the reference mark.Contact M2, the A+ of Programmable Logic Controller PLC, B+ are connected by contact XT6, XT7, the XT8 of lead 106,107,108 and terminal row respectively, and contact N, L1 are connected with the 220V AC power by lead.The contact M3,0,1,2 of Programmable Logic Controller PLC is connected by the contact XT1-XT4 of lead 101-104 and terminal row respectively.The contact M4 of Programmable Logic Controller PLC is connected by the contact M of lead and analog quantity load module, the contact 0V of electric weight module.The contact L+ of Programmable Logic Controller PLC is connected by the contact L+ of lead and analog quantity load module, contact+24 of electric weight module.Analog quantity load module ground contact is connected by the contact XT15 of lead 105 and terminal row.Contact RA, the A+ of analog quantity load module, A-, RB, B+, B-, RC, C+, C-, RD, D+, D-are connected by the contact XT9-XT20 of lead 110-121 and terminal row respectively.The contact XT9-XT20 of terminal row is connected by the detecting instrument of lead and each monitoring point respectively.Contact A, the B of electric weight module, C, N are connected by the contact XT31-XT34 of lead and terminal row respectively, contact I1, the I2 of electric weight module is connected with current transformer A on the scene mutually by lead, contact I3, the I4 of electric weight module is connected with current transformer B on the scene mutually by lead, and contact I5, the I6 of electric weight module is connected with current transformer C on the scene mutually by lead.The output interface of Programmable Logic Controller PLC is connected by the input end of lead and photoelectric commutator, and the output terminal of photoelectric commutator is connected by contact XT21, the XT22 of lead and terminal row respectively, is connected to optical cable and gets on.As required, in this device touch-screen can be installed, touch-screen is installed on the touch screen, touch screen is fixedly mounted on the front of cabinet interior circuit board, and the output port of Programmable Logic Controller PLC is connected by the input port of lead and touch-screen.According to the requirement of infield, also can install heat-insulation layer, heat tape and exhaust fan additional in the cabinet.
During use, the relevant detection instrument is installed in each monitoring point, this device is installed in relative appropriate location placed in the middle with each monitoring point, by lead this device is connected with each monitoring instrument, and this device is connected with Surveillance center by optical cable.During work, after analog quantity load module, electric weight module collect the electric signal that each monitoring point transports, be transported to Programmable Logic Controller PLC by lead and change into digital signal, deliver to Surveillance center through photoelectric commutator and optical cable, can check the situation of each monitoring point at any time or they are printed in Surveillance center.If will control starting or stoping of certain monitoring point, from Surveillance center control signal is sent to this device, be sent to Programmable Logic Controller PLC by photoelectric commutator, change into corresponding electric signal, by the folding of pilot relay, thereby control executing mechanism is finished control procedure.This device also can be installed touch-screen, by Programmable Logic Controller PLC with signal conveys to touch-screen, can watch the situation of each monitoring point in the working site by touch-screen.
Claims (4)
1. PLC formula teledata measurement and control unit RTU, constitute by cabinet and the circuit board that is installed in the cabinet, it is characterized in that: by the power switch of installing on the circuit board, power module, Programmable Logic Controller PLC, receiver module, electric weight module, GPRS module, relay, terminal row, and they are connected to form teledata measurement and control unit RTU by lead, after collecting the radio signal of each monitoring point by receiver module, electric weight module, be transported to Programmable Logic Controller PLC and change into digital signal, be transmitted into Surveillance center through the GPRS module; The control signal that Surveillance center sends is sent to Programmable Logic Controller PLC and changes into corresponding electric signal, the folding of pilot relay, thereby control executing mechanism after being received by the GPRS module.
2. PLC formula teledata measurement and control unit RTU according to claim 1, it is characterized in that: touch screen is installed in cabinet, touch-screen is housed on touch screen, and Programmable Logic Controller PLC is transported to touch-screen after the electric signal of each monitoring point is changed into digital signal.
3. PLC formula teledata measurement and control unit RTU, constitute by cabinet and the circuit board that is installed in the cabinet, it is characterized in that: power switch is installed on the circuit board, power module, Programmable Logic Controller PLC, the analog quantity load module, the electric weight module, photoelectric commutator, relay, terminal row, and they are connected to form teledata measurement and control unit RTU by lead, by the analog quantity load module, after the electric weight module collects the electric signal of each monitoring point by lead, be transported to Programmable Logic Controller PLC and change into numerical information, signal conveys is arrived Surveillance center through photoelectric commutator; The control signal that Surveillance center sends is transported to Programmable Logic Controller PLC by photoelectric commutator, changes into corresponding electric signal, the folding of pilot relay, thereby control executing mechanism.
4. PLC formula teledata measurement and control unit RTU according to claim 3, it is characterized in that: touch screen is installed in cabinet, touch-screen is housed on touch screen, and Programmable Logic Controller PLC is transported to touch-screen after the signal of each monitoring point is changed into digital signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201616814U CN201616018U (en) | 2009-07-14 | 2009-07-14 | PLC type teledata measurement and control unit RTU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201616814U CN201616018U (en) | 2009-07-14 | 2009-07-14 | PLC type teledata measurement and control unit RTU |
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| Publication Number | Publication Date |
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| CN201616018U true CN201616018U (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201616814U Expired - Fee Related CN201616018U (en) | 2009-07-14 | 2009-07-14 | PLC type teledata measurement and control unit RTU |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637283A (en) * | 2015-01-30 | 2015-05-20 | 江南大学 | Stm 32-based wireless industrial data acquisition terminal |
-
2009
- 2009-07-14 CN CN2009201616814U patent/CN201616018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637283A (en) * | 2015-01-30 | 2015-05-20 | 江南大学 | Stm 32-based wireless industrial data acquisition terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20180714 |