CN207817492U - A kind of On-off signal output module - Google Patents
A kind of On-off signal output module Download PDFInfo
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- CN207817492U CN207817492U CN201820284346.2U CN201820284346U CN207817492U CN 207817492 U CN207817492 U CN 207817492U CN 201820284346 U CN201820284346 U CN 201820284346U CN 207817492 U CN207817492 U CN 207817492U
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Abstract
The utility model is related to a kind of On-off signal output modules, including microcontroller, optical coupling isolation circuit, signal transceiver and eight channel darlington array, the digital quantity input terminal of wherein microcontroller is connected by optical coupling isolation circuit with input interface, the digital output end of microcontroller is connect by phase inverter display there are two eight channel darlington array, and the output ends of two eight channel darlington array connects that there are two 8 output interfaces respectively；The communication interface of microcontroller is connected to signal transceiver.The utility model peace On-off signal output module can provide the input of 8 railway digital amounts and the output of 16 railway digital amounts, and dry node and wet node are supported in input, and more output switch parameter points are realized with same communications protocol and the effective resource of input terminal.
Description
Technical field
The utility model is related to a kind of On-off signal output modules.
Background technology
On-off signal output module is a device that on-off model can be acquired to input/control output, is passed through
On-off model is acquired the phase for sending dependent instruction by module control switch to computer or computer by RS-485 buses
Off status can also carry out pairwise communications, the correlated condition of remote control switch by RS-485 buses.It can be widely applied to work
Industry fieldbus, PLC control system, elevator control system, automatic control system of air conditioner, traffic automation control, center monitoring,
In each automation control area such as power monitoring, safety defense monitoring system, anti-theft alarm system and environmental monitoring system.
On-off signal output module has the input of 7 way switch amounts, the output of 8 way switch amounts or the input of 8 way switch amounts, 8 at present
Way switch amount output etc., does not realize more output switch parameter points using limited input information resource.
Utility model content
For On-off signal output module in the prior art more output switch parameters are not realized using limited resource
The deficiencies of point, problem to be solved in the utility model are to provide the switching value of a kind of input of 8 railway digital amount, the output of 16 railway digital amounts
Input/output module.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of On-off signal output module of the utility model, including microcontroller, optical coupling isolation circuit, signal transceiver with
And eight channel darlington array, the digital quantity input terminal of wherein microcontroller are connected by optical coupling isolation circuit with input interface, it is single
The digital output end of piece machine is connect by phase inverter display there are two eight channel darlington array, two eight channel darlington array
Output end connect respectively there are two 8 output interfaces；The communication interface of microcontroller is connected to signal transceiver.
The utility model also has plucking number sign switch, is connected with the address choice interface of microcontroller.
The utility model also has 232 turn of 485 converter, is connect with signal transceiver U9.
The digital quantity input terminal of microcontroller inputs for 8 way switch amounts, and the digital output end of microcontroller is 16 way switch amounts
Output.
The utility model also has the LED light for being used to indicate communications status, defeated with a digital quantity of microcontroller
Go out pin connection.
The utility model has the advantages that and advantage：
1. the utility model peace On-off signal output module can provide the input of 8 railway digital amounts and the output of 16 railway digital amounts,
Dry node and wet node are supported in input, and more output switch parameters are realized with same communications protocol and the effective resource of input terminal
Point.
Description of the drawings
Fig. 1 is the utility model electrical structure schematic diagram；
Fig. 2 is the utility model external hardware wiring schematic diagram；
Fig. 3 is the line schematic diagram of the utility model external world relay；
Fig. 4 is the utility model digital quantity input wires figure.
Specific implementation mode
The utility model is further elaborated with reference to the accompanying drawings of the specification.
As shown in Figure 1, a kind of On-off signal output module of the utility model, including microcontroller U8, optical coupling isolation circuit,
Signal transceiver U9 and eight channel darlington array, wherein the digital quantity input terminal of microcontroller U8 by optical coupling isolation circuit with
Input interface J3 is connected, and the digital output end of microcontroller U8 is connect by phase inverter display there are two eight channel darlington array,
The output end of two eight channel darlington array is connect respectively there are two 8 output interfaces J4, J5；The communication interface of microcontroller U8 connects
There is signal transceiver U9.
The utility model also has plucking number sign switch JMP1, is connected with the address choice interface of microcontroller U8；Also have 232
Turn 485 converters, is connect with signal transceiver U9.Microcontroller U8 passes through signal transceiver U9 and 232 turn of 485 converter and master
Machine (host computer) is communicated.
In the present embodiment, microcontroller U8 uses 89C51, digital quantity input terminal to have 8 input pins, pass through light respectively
Coupling isolation circuit is connected with input interface J3.Optical coupling isolation circuit includes first and second optical coupling isolation circuit U3, U4, is all made of
TLP521-4 modules, each TLP521-4 modules include 4 photoelectrical couplers, and the diode cathode of input terminal is connected to high electricity
Flat, cathode is connected on each terminal of input interface J3；The emitter of TLP521-4 module output end triodes connects high level power supply,
Collector is connect with 8 input pins of microcontroller U8 digital quantity input terminals respectively；Each input pin is equipped with pull-up resistor.
Input interface J3 has 8 terminals.
The digital quantity input terminal of microcontroller inputs for 8 way switch amounts, and the digital output end of microcontroller is 16 way switch amounts
Output.
The utility model also has the LED light for being used to indicate communications status, defeated with a digital quantity of microcontroller
Go out pin connection.Indicator light flickers when data transmission.
Eight channel darlington array include the first and second eight channel darlington array U1, U2, and the present embodiment is selected
ULN2803AP is suitble to logic interfacing level digital circuit (such as on TTL, CMOS or PMOS/NMOS) and higher electric current/electricity
Pressure load, such as electric light, solenoid valve, relay, printing hammer or other similar loads.All devices function by collector output and
Clamp diode transient state inhibits, and complies with standard TTL, is suitble on the high-level CMOS or PMOS of 6~15V.The eight channels Darlington
Array is reversed output type, i.e. input low level voltage, output end could ON operation, therefore in two eight channel Darlington battle arrays
The input terminal of row is configured with the phase inverter array for including 16 phase inverters.
In order to make multiple switch amount input/output module while use, address choice is carried out by plucking number sign switch JMP1, this
Embodiment uses SW-DIP4 models, has 4 plucking number sign switches, 16 different addresses can be arranged, keep multiple multiple switch amounts defeated
Enter output module while being articulated on a data/address bus.
As shown in Fig. 2, the utility model is configured with 232 turn of 485 converter, it is compatible with RS-232, RS-485 standard, can be incited somebody to action
Single-ended RS-232 signals are converted to the RS-485 signals of balanced differential, ensure the program write under RS-232 half-duplex modes
It can be run under RS-485 modes without change, it is ensured that be suitble to existing operating software and interface hardware, converter transmission speed
Rate 300-115.2Kbps. can be applied between main controller, constitute point-to-point, point between main controller and microcontroller or peripheral hardware
To multi-point remote Multi computer communication network, multimachine response communication is realized.
When the utility model is used, the wiring diagram of outer contact relay at digital output end as shown in figure 3, pass through resistance
R connects solid-state relay, and resistance R is used for current limliting, makes electric current I within the scope of the utility model maximum output.
Digital quantity input wiring diagram in square as shown in figure 4, indicate to meet+VSCorresponding GND.
The utility model On-off signal output module can provide the input of 8 railway digital amounts and the output of 16 railway digital amounts, input
It supports dry node and wet node, is high level to wet node input voltage+3.5V-30V；Low level is 0~+1V；Output is 0-
30V open collectors export.This module is turned by the outside output signals of RS485 by RS485 using direct current 24V power supplies
RS232 modules, realization are communicated with computer, and more output switch parameter points are realized with same communications protocol.
Claims (5)
1. a kind of On-off signal output module, it is characterised in that：Including microcontroller, optical coupling isolation circuit, signal transceiver with
And eight channel darlington array, the digital quantity input terminal of wherein microcontroller are connected by optical coupling isolation circuit with input interface, it is single
The digital output end of piece machine is connect by phase inverter array there are two eight channel darlington array, two eight channel darlington array
Output end connect respectively there are two 8 output interfaces；The communication interface of microcontroller is connected to signal transceiver.
2. On-off signal output module according to claim 1, it is characterised in that：Also there is plucking number sign switch, with monolithic
The address choice interface of machine is connected.
3. On-off signal output module according to claim 1, it is characterised in that：Also with also with 232 turns 485 turns
Parallel operation is connect with signal transceiver U9.
4. On-off signal output module according to claim 1, it is characterised in that：The digital quantity input terminal of microcontroller is
8 way switch amounts input, and the digital output end of microcontroller exports for 16 way switch amounts.
5. On-off signal output module according to claim 1, it is characterised in that：Also have and is used to indicate communications status
LED light, connect with a digital quantity output pin of microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284346.2U CN207817492U (en) | 2018-02-28 | 2018-02-28 | A kind of On-off signal output module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284346.2U CN207817492U (en) | 2018-02-28 | 2018-02-28 | A kind of On-off signal output module |
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| Publication Number | Publication Date |
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| CN207817492U true CN207817492U (en) | 2018-09-04 |
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| CN201820284346.2U Active CN207817492U (en) | 2018-02-28 | 2018-02-28 | A kind of On-off signal output module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531256A (en) * | 2019-07-26 | 2019-12-03 | 大连理工大学 | A kind of darlington array simulation electromagnetic relay switch amount output system |
| CN111736520A (en) * | 2020-07-17 | 2020-10-02 | 上海电气自动化设计研究所有限公司 | Core controller circuit for PLC practical training device |
| CN115963750A (en) * | 2022-12-14 | 2023-04-14 | 山东有人物联网股份有限公司 | Dry and wet node acquisition circuit, method, terminal equipment and computer storage medium |
-
2018
- 2018-02-28 CN CN201820284346.2U patent/CN207817492U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531256A (en) * | 2019-07-26 | 2019-12-03 | 大连理工大学 | A kind of darlington array simulation electromagnetic relay switch amount output system |
| CN111736520A (en) * | 2020-07-17 | 2020-10-02 | 上海电气自动化设计研究所有限公司 | Core controller circuit for PLC practical training device |
| CN115963750A (en) * | 2022-12-14 | 2023-04-14 | 山东有人物联网股份有限公司 | Dry and wet node acquisition circuit, method, terminal equipment and computer storage medium |
| CN115963750B (en) * | 2022-12-14 | 2024-06-04 | 山东有人物联网股份有限公司 | Dry and wet node acquisition circuit, method, terminal equipment and computer storage medium |
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