CN207502967U - A kind of voltage/current type 10 tunnels analogy amount input module of PLC - Google Patents
A kind of voltage/current type 10 tunnels analogy amount input module of PLC Download PDFInfo
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- CN207502967U CN207502967U CN201721317130.3U CN201721317130U CN207502967U CN 207502967 U CN207502967 U CN 207502967U CN 201721317130 U CN201721317130 U CN 201721317130U CN 207502967 U CN207502967 U CN 207502967U
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- voltage
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- microprocessor
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Abstract
The utility model discloses the 10 tunnels analogy amount input modules of voltage/current type of PLC a kind of, the 10 tunnels analogy amount input module of voltage/current type of the PLC includes microprocessor and CAN transceiver, the microprocessor is equipped with CAN controller, the CAN controller is communicated to connect with CAN transceiver, the CAN transceiver and the CAN bus of PLC communicate to connect, and set that there are two 12 ADC analog-digital converters in the microprocessor.The utility model solves the problems, such as the simulation IO input port wretched insufficiencies of PLC, easy to use, and performance is stablized.
Description
Technical field
The utility model is related to a kind of Analog input mModules, and in particular to 10 channel of voltage/current type of PLC a kind of
Analog input mModule.
Background technology
PLC is widely used in industrial automation control system, in the design of the automatic control system of PLC, due to mould
Plan I/O port is very in short supply, and the expansion module of the simulation IO outputs for the MicroLogix1200 microprocessors being connect with PLC
1762-OF4 only has 4 analog quantity inputs, and thus in the PLC engineerings for being designed with analog input, what first choice considered is exactly
The resource of analog quantity I/O interface, and can excessively increase the number of nodes in bus using remote I/O, increase the negative of bus communication
Load.
Utility model content
The utility model is to solve the above-mentioned problems, defeated so as to provide the 10 tunnels analogy amount of voltage/current type of PLC a kind of
Enter module.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
The 10 tunnels analogy amount input module of voltage/current type of PLC a kind of, the 10 channel mould of voltage/current type of the PLC
Analog quantity input module includes microprocessor and CAN transceiver, and the microprocessor is equipped with CAN controller, the CAN controls
Device is communicated to connect with CAN transceiver, and the CAN bus of the CAN transceiver and PLC communicate to connect, and are equipped in the microprocessor
Two 12 ADC analog-digital converters.
In a preferred embodiment of the utility model, the 10 tunnels analogy amount input module packet of voltage/current type of PLC
Power circuit is included, the power circuit includes direct port, DC/DC oscillation modules, power module of voltage regulation, the first light emitting diode
With the second light emitting diode, the direct port is directly connected to the power supply on PLC, the DC/DC oscillation modules and direct port
Connection, the DC/DC oscillation modules export 5V voltages, and the power module of voltage regulation is connect with DC/DC oscillation modules, the voltage stabilizing
The exportable 3.3V voltages of power module, the 5V voltages of the first light emitting diode connection DC/DC oscillation module outputs are described
The 3.3V voltages of second light emitting diode connection power module of voltage regulation output.
In a preferred embodiment of the utility model, the CAN transceiver is equipped with the first connectivity port and second
Connectivity port, first connectivity port and second connection end mouth connect the CAN bus of PLC respectively.
In a preferred embodiment of the utility model, the microprocessor is equipped with input circuit, the input electricity
Road is connect respectively with external input device and two 12 ADC digital analog converters, and the input circuit includes input terminal, the
One shorted end, the second shorted end, third shorted end, first resistor, second resistance, 3rd resistor, the 4th resistance and operation amplifier
Device, the input terminal connect first resistor, and first shorted end connects input terminal and the 4th resistance, second short circuit respectively
End connects the first shorted end and operational amplifier respectively, and the third shorted end connects input terminal, first resistor and second respectively
Resistance, the first resistor, second resistance, 3rd resistor and the 4th resistance are sequentially connected, and the operational amplifier connects respectively
Second resistance and 3rd resistor.
In a preferred embodiment of the utility model, the input terminal is the input terminal of 10 tunnel analog quantitys, per road mould
There are two wire connection terminals for analog quantity.
In a preferred embodiment of the utility model, the model STM32F103 of the microprocessor.
The beneficial effects of the utility model are:
The utility model solves the problems, such as the simulation IO input port wretched insufficiencies of PLC, easy to use, and performance is stablized.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of the utility model;
Fig. 2 is the circuit diagram of power circuit;
Fig. 3 is the wiring schematic diagram of CAN transceiver;
Fig. 4 is the circuit diagram of input circuit.
Specific embodiment
In order to be easy to understand technical means, creative features, achievable purpose and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1 to Fig. 4, the 10 tunnels analogy amount input module of voltage/current type of PLC provided by the utility model,
Including microprocessor 100 and CAN transceiver 200, be equipped with CAN controllers 110 on microprocessor 100, CAN controller 110 with
CAN transceiver 200 communicates to connect, and the CAN bus 300 of the PLC of CAN transceiver 200 and PLC communicates to connect, in microprocessor
Two 12 ADC analog-digital converters 120 are additionally provided in 100.
The communication link successively that microprocessor 100 passes through CAN controller 110, CAN transceiver 200 and CAN bus 300 in this way
It connects, the analog voltage of external perimysium reference or current signal such as voltage 0-5V, 0-10V or current signal 4-20mA can be converted to
The voltage range of ADC analog-digital converters 120 in microprocessor 100, by 120 turns of ADC analog-digital converters
It changes, transformation result is transferred to PLC by CAN bus 300.
The model of microprocessor 100 in the application is specially STM32F103, there is 20 external interfaces, clock frequency
36MZH, conversion time can reach 1us, can realize multi-channel A/D rapid translating.
In addition, the power supply of PLC can be used directly by power circuit for microprocessor 100, and micro- place can be also detected in real time
Reason device 100 exports the working condition of each voltage.
Power circuit includes direct port P1, DC/DC oscillation module U2, power module of voltage regulation U5, the first light emitting diode
With the second light emitting diode.
Direct port P1 is directly connected to the 24V power supplys on PLC, and DC/DC oscillation modules U2 is connect with direct port P1, DC/
24V electricity on PLC can be converted into 5V, and export by DC oscillation modules.
Power module of voltage regulation U5 is connect with DC/DC oscillation modules U2, and power module of voltage regulation U5 can be by DC/DC oscillation modules
The transformed 5V power supplys of U2 are converted into the 3.3V voltages of the needs of microprocessor 100, and export.
The 5V voltages of first light emitting diode connection DC/DC oscillation modules U2 outputs, can when there is 5V voltage outputs
It is bright.
The 3.3V voltages of second light emitting diode connection power module of voltage regulation U5 outputs, when there is 3.3V voltage outputs,
It can be bright.
CAN transceiver 200 and the communication structure of microprocessor 100 and CAN bus 300 are as follows:
The first connectivity port CANH and second connection end mouth CANL, the first connectivity port are equipped in CAN transceiver 200
CANH and second connection end mouth CANL connects CAN_H the and CAN_L ports of CAN bus 300 respectively, if CAN bus 300
Terminal location needs to connect the metalfilmresistor of 120 Ω, and otherwise resistance does not have to then.
Microprocessor 100 is especially by input circuit by the external analog voltage of standard or current signal such as voltage 0-
5V, 0-10V or current signal 4-20mA are inputted, input circuit respectively with external input device and two 12 ADC digitals
Analog converter 120 connects, and input circuit includes input terminal P2, the first shorted end P3, the second shorted end P4, third shorted end
P5, first resistor R2, second resistance R3,3rd resistor R7, the 4th resistance R6 and operational amplifier A
Input terminal P2 connection first resistors R2, the first shorted end P3 connect input terminal P2 and the 4th resistance R6 respectively, and second
Shorted end P4 connects the first shorted end P3 and operational amplifier A respectively, and third shorted end P5 connects input terminal P2, first respectively
Resistance R2 and second resistance R3, first resistor R2, second resistance R3,3rd resistor R7 and the 4th resistance R6 are sequentially connected, operation
Amplifier A connects second resistance R3 and 3rd resistor R7 respectively.
Input terminal P2 is the input terminal of 10 tunnel analog quantitys, and per road analog quantity, there are two wire connection terminal, such external terminals
Son shares 20, and the first shorted end P3, the second shorted end P4 and third shorted end P5 can specifically use short circuit piece short circuit, such root
Short circuit mode may be selected according to analog quantity type, it is short when analog quantity is 0-5V without short circuit when analog quantity is 0-10V
Third shorted end P5 is met, when the electric current input that analog quantity is 4-20mA, short first shorted end P3 and the second shorted end P4, this
Different analog inputs can be converted to 0-3.3V voltages by sample, be input on the ADC ports outside microprocessor 100.
The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
- A kind of 1. 10 tunnels analogy amount input module of voltage/current type of PLC, which is characterized in that the voltage/current of the PLC 10 tunnels analogy amount input module of type includes microprocessor and CAN transceiver, and the microprocessor is equipped with CAN controller, institute It states CAN controller to communicate to connect with CAN transceiver, the CAN bus of the CAN transceiver and PLC communicate to connect, the microprocessor 12 ADC analog-digital converters there are two being set in device.
- 2. a kind of 10 tunnels analogy amount input module of voltage/current type of PLC according to claim 1, which is characterized in that The 10 tunnels analogy amount input module of voltage/current type of PLC includes power circuit, and the power circuit includes direct port, DC/ DC oscillation modules, power module of voltage regulation, the first light emitting diode and the second light emitting diode, the direct port are directly connected to Power supply on PLC, the DC/DC oscillation modules are connect with direct port, and the DC/DC oscillation modules export 5V voltages, described Power module of voltage regulation is connect with DC/DC oscillation modules, the exportable 3.3V voltages of power module of voltage regulation, and described first luminous two The 5V voltages of pole pipe connection DC/DC oscillation module outputs, the second light emitting diode connection power module of voltage regulation output 3.3V voltage.
- 3. a kind of 10 tunnels analogy amount input module of voltage/current type of PLC according to claim 1, which is characterized in that The CAN transceiver is equipped with the first connectivity port and second connection end mouth, first connectivity port and second connection end mouth The CAN bus of PLC is connected respectively.
- 4. a kind of 10 tunnels analogy amount input module of voltage/current type of PLC according to claim 1, which is characterized in that The microprocessor be equipped with input circuit, the input circuit respectively with external input device and two 12 ADC digital moulds Intend converter connection, the input circuit includes input terminal, the first shorted end, the second shorted end, third shorted end, the first electricity Resistance, second resistance, 3rd resistor, the 4th resistance and operational amplifier, the input terminal connect first resistor, first short circuit End connects input terminal and the 4th resistance respectively, and second shorted end connects the first shorted end and operational amplifier respectively, described Third shorted end connects input terminal, first resistor and second resistance respectively, the first resistor, second resistance, 3rd resistor and 4th resistance is sequentially connected, and the operational amplifier connects second resistance and 3rd resistor respectively.
- 5. a kind of 10 tunnels analogy amount input module of voltage/current type of PLC according to claim 4, which is characterized in that The input terminal is the input terminal of 10 tunnel analog quantitys, and per road analog quantity, there are two wire connection terminals.
- 6. a kind of 10 tunnels analogy amount input module of voltage/current type of PLC according to claim 1, which is characterized in that The model STM32F103 of the microprocessor.
Priority Applications (1)
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CN201721317130.3U CN207502967U (en) | 2017-10-13 | 2017-10-13 | A kind of voltage/current type 10 tunnels analogy amount input module of PLC |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201721317130.3U CN207502967U (en) | 2017-10-13 | 2017-10-13 | A kind of voltage/current type 10 tunnels analogy amount input module of PLC |
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Publication Number | Publication Date |
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CN207502967U true CN207502967U (en) | 2018-06-15 |
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ID=62500294
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CN201721317130.3U Active CN207502967U (en) | 2017-10-13 | 2017-10-13 | A kind of voltage/current type 10 tunnels analogy amount input module of PLC |
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2017
- 2017-10-13 CN CN201721317130.3U patent/CN207502967U/en active Active
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