CN210626951U - Switching signal acquisition tandem controller - Google Patents
Switching signal acquisition tandem controller Download PDFInfo
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- CN210626951U CN210626951U CN201922114163.3U CN201922114163U CN210626951U CN 210626951 U CN210626951 U CN 210626951U CN 201922114163 U CN201922114163 U CN 201922114163U CN 210626951 U CN210626951 U CN 210626951U
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Abstract
The utility model discloses a switching signal acquisition tandem controller, which comprises a shell, wherein a plurality of indicating lamps for displaying the running state, a plurality of nixie tubes for displaying parameters and a plurality of keys for setting parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power supply interface for supplying power and a 485 interface for communication; a switch signal interface is also arranged on the shell; a control circuit is arranged in the shell and used for monitoring the nixie tube, the keys and the interface; the control circuit comprises a switching signal acquisition circuit, the switching signal acquisition circuit inputs a switching signal of a switching sensor or industrial equipment into the single chip microcomputer, and the single chip microcomputer inputs the switching signal into an external controller through a 485 interface to be monitored and displayed.
Description
Technical Field
The utility model relates to an industrial signal gathers the field, especially relates to a switching signal gathers tandem controller.
Background
In industrial systems, a plurality of switch sensors and devices are involved, and the switch states of the switch sensors and the devices need to be monitored during use, so that the operation of the devices is convenient to monitor. However, the number of the switch sensors and the equipment is huge, so that a large amount of manpower and material resources are wasted in the field observation and monitoring. In order to collect a large number of switching signals together for uniform monitoring, a problem needs to be considered.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a switching signal acquisition tandem controller, solves among the prior art to the switching signal lack the problem of unified tandem integrated controller.
In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a switching signal collection tandem controller, which comprises a housing, wherein a control panel of the housing is provided with a plurality of indicator lamps for displaying an operating state, a plurality of nixie tubes for displaying parameters, and a plurality of keys for setting parameters; the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power supply interface for supplying power and a 485 interface for communication; the shell is also provided with a plurality of groups of switch signal interfaces and a common wiring terminal, each switch signal interface is respectively connected with one end of one switch sensor, and the other end of each switch sensor is connected with a power supply and then is connected with the common wiring terminal; the switch sensor inputs the collected switch signals to the corresponding switch signal interface; when the switch sensor is closed, the power supply is input into the switch signal interface, and when the switch sensor is disconnected, the power supply is disconnected from the switch signal interface; and a control circuit is arranged in the shell and used for monitoring the nixie tube, the keys and the switch signal interface.
Preferably, the control circuit comprises a switching signal acquisition circuit, the switching signal acquisition circuit comprises an optocoupler, an anode of the optocoupler is electrically connected with a first divider resistor and then connected to the switching signal interface, and is also connected with a second divider resistor and then grounded, a cathode and an emitter of the optocoupler are both grounded, a collector of the optocoupler is electrically connected with a resistor and then connected to the power supply voltage of the singlechip, and is also connected to an input end of the singlechip; when a switching signal is input to the anode of the optical coupler, the optical coupler is driven to be switched on, the collector of the optical coupler is changed from a high level to a low level, and the single chip microcomputer inputs the collected switching signal to an external controller through a 485 interface for displaying.
Preferably, the control circuit further comprises a power supply circuit, the power supply circuit comprises a chip LM2596, the input end of the chip LM2596 is connected with +24V direct current voltage, and the output end of the chip LM2596 outputs +5V voltage; the chip AMS1117-3.3 is characterized by further comprising a chip AMS1117-3.3, a power supply input end of the chip AMS1117-3.3 is electrically connected with an output end of the chip LM2596, and an output end of a power supply of the chip AMS1117-3.3 outputs a singlechip supply voltage with a +3.3V voltage value.
Preferably, a plurality of switching signal acquisition tandem controllers are cascaded in a bus mode through a CAN interface.
Preferably, the number of the switch signal acquisition tandem controllers cascaded through the CAN interface is six, wherein one switch signal acquisition tandem controller is used as a master station, and the other five switch signal acquisition tandem controllers are used as slave stations; when signals are collected, the switch signals collected by the slave stations are input into the master station, and the switch signal collection junction controller serving as the master station transmits all collected switch signals to the external controller through the 485 interface.
Preferably, each switching signal acquisition junction controller comprises 16 groups of switching signal interfaces, the CAN interface of each switching signal acquisition junction controller comprises 16 registers corresponding to the 16 groups of switching signal interfaces, and when the six switching signal acquisition junction controllers are connected in a bus mode through the CAN interfaces, the registers of the six switching signal acquisition junction controllers are addressed uniformly.
Preferably, the keys comprise a setting key, a left adjusting key, a right adjusting key, a determining key and a baud rate key.
Preferably, the indicator light comprises a power indicator light, a work indicator light and a CAN communication indicator light.
The utility model has the advantages that: the utility model discloses a switching signal acquisition tandem controller, which comprises a shell, wherein a plurality of indicating lamps for displaying the running state, a plurality of nixie tubes for displaying parameters and a plurality of keys for setting parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power supply interface for supplying power and a 485 interface for communication; a switch signal interface is also arranged on the shell; a control circuit is arranged in the shell and used for monitoring the nixie tube, the keys and the interface; the control circuit comprises a switching signal acquisition circuit, the switching signal acquisition circuit inputs a switching signal of a switching sensor or industrial equipment into the single chip microcomputer, and the single chip microcomputer inputs the switching signal into an external controller through a 485 interface to be monitored and displayed.
Drawings
Fig. 1 is a schematic view of a control panel of a housing of a switching signal acquisition tandem controller according to the present invention;
fig. 2 is a switching signal acquisition circuit within a switching signal acquisition tandem controller according to the present invention;
fig. 3 is a schematic diagram of a control panel of another embodiment of a switching signal acquisition tandem controller according to the present invention;
fig. 4 is a power circuit of the switching signal acquisition junction controller according to the present invention;
fig. 5 is a single chip microcomputer in the switching signal acquisition tandem controller according to the present invention;
fig. 6 shows a chip TM1638 in the display circuit of the switching signal collection tandem controller according to the present invention;
fig. 7 is a first nixie tube in the display circuit of the switching signal collecting tandem controller according to the present invention;
fig. 8 is a schematic diagram of a cascade of a plurality of switching signal acquisition tandem controllers according to the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the switching signal acquisition junction controller includes a casing K, a control panel Z1 of the casing K is provided with a plurality of indicator lamps S1 for displaying operating states, a plurality of nixie tubes S2 for displaying parameters, and a plurality of keys a for setting parameters; a CAN interface J1 is arranged at the upper part of the shell K, and a power supply interface J2 for power supply and a 485 interface J3 for communication are arranged at the lower part of the shell K; switch signal interfaces (J4-J7 are four groups of switch signal interfaces, and each group comprises four switch signal interfaces) are also arranged on the shell.
A control circuit is arranged in the shell and monitors the nixie tube, the indicator light, the key and the interface. On the control panel Z1, the power indicator PWR: the controller is powered on, and the power supply is normal; work indicator RUN: indicating that the controller is working normally; CAN communication indicator lamp CAN: the CAN communication is normal, if the CAN bus is not accessed, the CAN indicating lamp is not on.
The key A comprises a setting key, a left adjusting key, a right adjusting key, a determining key and a baud rate key. Pressing the setting button can set up the menu, can switch over in proper order according to setting the button: 485 address setting menu-CAN address setting menu-baud rate setting-exit setting menu. And pressing a setting key to enter a 485 address setting menu, adjusting the address through a left adjusting key and a right adjusting key, and pressing a confirming key to confirm storage.
The baud rate key can set the baud rate, and the baud rate can be switched in sequence according to the baud rate key: 4800-9600-19200-115200.
The power interface J2 includes two terminals, a 0V terminal and a 24V terminal, and the 24V terminal is connected to a 24V power supply. The 485 interface J3 comprises two wiring ends, A +: sending end, B-: and (4) receiving the data.
Further, in fig. 1, the switching signal interface has one terminal: such as: and X00, four groups of switch signal interfaces (J4-J7) are arranged on the shell, each group of switch signal interfaces are independent, and 16 switch signal interfaces are provided in total in figure 1.
As shown in fig. 2, the control circuit includes a switching signal collecting circuit, the switching signal collecting circuit includes an optical coupler EL357, an anode of the optical coupler EL357 is electrically connected to the first voltage-dividing resistor R23 and then connected to the switching signal interface, and is also connected to the second voltage-dividing resistor R27 and then grounded, a cathode and an emitter of the optical coupler EL357 are both grounded, a collector of the optical coupler EL357 is electrically connected to a resistor R19 and then connected to the power supply voltage +3.3V of the single chip microcomputer, and is also connected to an input terminal PC5 of the single chip microcomputer in fig. 5; after a switching signal is input to the anode of the optical coupler EL357, the optical coupler EL357 is driven to be switched on, the collector electrode of the optical coupler EL357 is changed from high level to low level, and the single chip microcomputer inputs the collected switching signal to an external controller through a 485 interface for displaying.
Preferably, the resistor R19 is further connected to the anode of the diode D11, and the cathode of the diode D11 is connected to the collector of the optocoupler EL 357.
With reference to fig. 1 and 3, a plurality of sets of switch signal interfaces and common terminals are disposed on the housing. Each switch signal interface is respectively connected with one end of a switch sensor or industrial equipment, and the other end of the switch sensor or industrial equipment is connected with a power supply DC1 and then is connected with a common terminal; the switch sensor inputs the collected switch signals to the corresponding switch signal interface. In the use process, when the switch sensor is closed, the power supply is input into the switch signal interface, and when the switch sensor is opened, the power supply DC1 is disconnected with the switch signal interface, and the power supply DC1 is switched on or off, so that the on or off of the switch sensor is judged.
Preferably, in fig. 3, there are 4 groups of switching signal interfaces and two common terminals, and each group of switching signal interfaces includes 4 switching signal interfaces. A first group of switch signal interfaces (X00-X03), a second group of switch signal interfaces (X04-X07) and a first common terminal COM1 are arranged at the lower part of the shell, and a third group of switch signal interfaces (X10-X13), a fourth group of switch signal interfaces (X14-X17) and a second common terminal COM2 are arranged at the upper part of the shell. The first group of switching signal interfaces and the second group of switching signal interfaces are connected with one end of a power supply DC1 after being connected with a switching sensor respectively, and the other end of the power supply DC1 is connected with a first common terminal COM 1. The third group of switching signal interfaces and the fourth group of switching signal interfaces are respectively connected with one end of a power supply DC1 after being connected with a switching sensor, and the other end of the power supply DC1 is connected with a second common terminal COM 1.
Preferably, the power supply DC1 may be an external power supply, or may be generated by a collected power supply inside the casing, such as +5V voltage or +24V voltage (equivalent to the power supply DC connected to the power interface J2); when power DC1 is generated by the harvested power source inside the housing, the common terminal serves as a power output for power DC 1.
As shown in fig. 4, the power circuit inside the housing includes a chip LM2596, and an input terminal Vin of the chip LM2596 is connected to +24V dc voltage. The output terminal Vout of the chip LM2596 outputs +5V voltage. The output terminal Vout is further connected to a cathode of a schottky diode D1, an anode of the schottky diode D1 is grounded, and the output terminal Vout is further connected to an inductor L7, the other end of the inductor L7 is connected to an anode of the first polarity capacitor C27, and a cathode of the first polarity capacitor C27 is grounded. The output end Vout is also electrically connected with the feedback end FBack of the chip LM2596, the switch end on/off of the chip LM2596 is grounded, and the ground ends of the chip LM2596 are grounded. Preferably, the positive electrode of the first polarity capacitor C27 is connected to the capacitors C25, C28 and C26, respectively, and then grounded.
Furthermore, the other end of the inductor L7 is connected to a power input end of the chip AMS1117-3.3, and the output voltage value of the power output end of the chip AMS1117-3.3 is +3.3V of the power supply voltage of the single chip microcomputer. The ground terminal of the chip AMS1117-3.3 is grounded. Preferably, the power supply output end of the chip AMS1117-3.3 is electrically connected with the capacitor C21 and the capacitor C22 respectively and then grounded.
It can be seen that the power supply circuit converts a +24V direct-current power supply into a +5V voltage and a +3.3V singlechip supply voltage.
As shown IN fig. 5, the single chip IN the switching signal acquisition junction controller is a chip STM32F103C8T6, a power supply terminal Vdd of the chip STM32F103C8T6 is electrically connected to +3.3V, a Vss terminal is grounded, crystal oscillator pins OSC _ OUT and OSC _ IN of the chip STM32F103C8T6 are grounded after being connected to a crystal oscillator, and a pin BOOT of the chip STM32F103C8T6 is electrically connected to a resistor R61 and then grounded.
As shown in fig. 6, the control circuit further includes a display circuit for displaying the set parameter value, and the display circuit includes a chip TM1638 for driving the nixie tube. The chip selection terminal STB of the chip TM1638 is connected with the chip selection terminal STB1 of the chip STM32F103C8T6 in FIG. 5, and is also connected with the chip selection current-limiting resistor R8 and then connected with the +3.3V voltage, the clock terminal CLK is electrically connected with the clock signal output terminal of the chip STM32F103C8T6 and is also connected with the pull-up resistor R10 and then connected with the +3.3V voltage, the data terminal DIO is connected with an input/output terminal of the chip STM32F103C8T6 and is also electrically connected with the pull-up resistor R11 and then connected with the +3.3V voltage. The power supply end is electrically connected with +5V voltage, the anode of the polar capacitor C2 and the cathode of the polar capacitor C2 are grounded, and the power supply end is preferably also electrically connected with the anode of the polar capacitor C1 and the cathode of the polar capacitor C1 are grounded.
As shown in fig. 7, the nixie tube includes a first nixie tube and a second nixie tube, and in this embodiment, the first nixie tube shown in fig. 7 is taken as an example for description. The first nixie tube and the second nixie tube are 3-bit common-anode nixie tubes, wherein the common anode of each nixie tube is respectively connected with one output bit of the chip TM1638 in fig. 6, namely the common anode (A-DP) of each nixie tube is respectively connected with the output bits (GR1-GR8) of the chip TM1638 in a one-to-one correspondence manner.
In FIG. 7, the three bit-selective segments (DIG1-DIG3) of the first nixie tube are correspondingly connected to the first output segment to the third output segment (SEG1/K1-SEG3/K3) of the chip TM1638 in FIG. 6, and the three bit-selective segments (DIG1-DIG3) of the second nixie tube are correspondingly connected to the fourth output segment to the sixth output segment (SEG4/K4-SEG6/K6) of the chip TM 1638. The ground terminal of the chip TM1638 is grounded.
As shown in fig. 8, six switching signal acquisition junction controllers are cascaded through CAN interfaces, wherein the CAN address of one switching signal acquisition junction controller (1#) is used as a master station, and the CAN addresses of the other five switching signal acquisition junction controllers (2# -6 #) are used as slave stations; when signals are collected, signals collected by the slave stations are input into the master station (1#), and the switching signal collection junction controller (1#) with the master station transmits all collected switching signals to the external controller PLC through the 485 interface.
Preferably, each switch signal acquisition junction controller has a corresponding register at the CAN interface, and when 6 such switch signal acquisition junction controllers are connected in a bus manner through the CAN interfaces, the registers are addressed in a unified manner, as shown in table 1. For example, addresses 0 to 15 correspond to switch signals obtained by sixteen signal acquisition tandem controllers storing the master station No. 1, and X00 to X07, and X10 to X17 correspond to signal channels representing sixteen signal acquisition tandem controllers. The switch signals are in the memories of corresponding addresses, and the external controller communicates with the master station through 485 to obtain the switch values of all the channels.
TABLE 1 memory Allocation Table corresponding to CAN interface
Therefore, the utility model discloses a switching signal acquisition tandem controller, which comprises a shell, wherein a plurality of indicator lamps for displaying the running state, a plurality of nixie tubes for displaying the parameters and a plurality of keys for setting the parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power supply interface for supplying power and a 485 interface for communication; a switch signal interface is also arranged on the shell; a control circuit is arranged in the shell and used for monitoring the nixie tube, the keys and the interface; the control circuit comprises a switching signal acquisition circuit, the switching signal acquisition circuit inputs a switching signal of a switching sensor or industrial equipment into the single chip microcomputer, and the single chip microcomputer inputs the switching signal into an external controller through a 485 interface to be monitored and displayed.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (8)
1. The utility model provides a switching signal gathers tandem controller, includes the casing, its characterized in that: a plurality of indicator lamps for displaying the running state, a plurality of nixie tubes for displaying parameters and a plurality of keys for setting the parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power supply interface for supplying power and a 485 interface for communication; the shell is also provided with a plurality of switch signal interfaces and a common wiring terminal, each switch signal interface is respectively connected with one end of one switch sensor, and the other end of each switch sensor is connected with a power supply and then is connected with the common wiring terminal; the switch sensor inputs the collected switch signals to the corresponding switch signal interface; when the switch sensor is closed, the power supply is input into the switch signal interface, and when the switch sensor is disconnected, the power supply is disconnected from the switch signal interface; and a control circuit is arranged in the shell and used for monitoring the nixie tube, the keys and the switch signal interface.
2. The switching signal acquisition tandem controller according to claim 1, wherein: the control circuit comprises a switching signal acquisition circuit, the switching signal acquisition circuit comprises an optical coupler, the anode of the optical coupler is electrically connected with a first divider resistor and then connected with the switching signal interface, and is also connected with a second divider resistor and then grounded, the cathode and the emitter of the optical coupler are both grounded, the collector of the optical coupler is electrically connected with a resistor and then connected with the power supply voltage of the single chip microcomputer, and is also connected with one input end of the single chip microcomputer; when a switching signal is input to the anode of the optical coupler, the optical coupler is driven to be switched on, the collector of the optical coupler is changed from a high level to a low level, and the single chip microcomputer inputs the collected switching signal to an external controller through a 485 interface for displaying.
3. The switching signal acquisition tandem controller according to claim 2, wherein: the control circuit further comprises a power supply circuit, the power supply circuit comprises a chip LM2596, the input end of the chip LM2596 is connected with +24V direct-current voltage, and the output end of the chip LM2596 outputs +5V voltage; the chip AMS1117-3.3 is characterized by further comprising a chip AMS1117-3.3, a power supply input end of the chip AMS1117-3.3 is electrically connected with an output end of the chip LM2596, and an output end of a power supply of the chip AMS1117-3.3 outputs a singlechip supply voltage with a +3.3V voltage value.
4. The switching signal acquisition tandem controller according to claim 3, wherein: the plurality of switch signal acquisition tandem controllers are cascaded in a bus mode through a CAN interface.
5. The switching signal acquisition tandem controller according to claim 4, wherein: six switch signal acquisition tandem controllers are cascaded through the CAN interface, wherein one switch signal acquisition tandem controller is used as a master station, and the other five switch signal acquisition tandem controllers are used as slave stations; when signals are collected, the switch signals collected by the slave stations are input into the master station, and the switch signal collection junction controller serving as the master station transmits all collected switch signals to the external controller through the 485 interface.
6. The switching signal acquisition tandem controller according to claim 5, wherein: each switch signal acquisition tandem controller comprises 16 switch signal interfaces, the CAN interface of each switch signal acquisition tandem controller comprises 16 registers corresponding to the 16 switch signal interfaces, and when the six switch signal acquisition tandem controllers are connected in a bus mode through the CAN interfaces, the registers of the six switch signal acquisition tandem controllers are addressed in a unified mode.
7. The switching signal acquisition tandem controller according to claim 1, wherein: the keys comprise a setting key, a left adjusting key, a right adjusting key, a determining key and a baud rate key.
8. The switching signal acquisition tandem controller according to claim 1, wherein: the indicating lamp comprises a power supply indicating lamp, a working indicating lamp and a CAN communication indicating lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114163.3U CN210626951U (en) | 2019-11-30 | 2019-11-30 | Switching signal acquisition tandem controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114163.3U CN210626951U (en) | 2019-11-30 | 2019-11-30 | Switching signal acquisition tandem controller |
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| CN210626951U true CN210626951U (en) | 2020-05-26 |
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| CN201922114163.3U Active CN210626951U (en) | 2019-11-30 | 2019-11-30 | Switching signal acquisition tandem controller |
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