CN209803594U

CN209803594U - Input/output point controller based on CAN bus

Info

Publication number: CN209803594U
Application number: CN201920736543.8U
Authority: CN
Inventors: 赵久龙; 邓凯明; 王晓羽
Original assignee: DALIAN JIAHEO AUTOCONTROL TECHNOLOGY Co Ltd
Current assignee: DALIAN JIAHEO AUTOCONTROL TECHNOLOGY Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2019-12-17
Anticipated expiration: 2029-05-22

Abstract

The input and output point controller based on the CAN bus comprises a controller bottom plate, a controller front panel, a controller wiring port, a CAN bus socket, an RS485 socket, an input and output point socket, a power indicator, a CAN bus communication indicator and a controller front panel screw. The product has high module integration level, no redundant wiring, small volume, convenient installation and debugging and difficult error. The product adopts a mature and stable mainstream chip STM32 single-chip microcomputer in the industrial market as a main control chip, and the performance is stable and reliable. This product modular structure, a plurality of controllers can be hung to an automatically controlled cabinet.

Description

Input/output point controller based on CAN bus

Technical Field

The utility model belongs to an input/output point controller, especially an input/output point controller based on CAN bus.

Background

At present, input and output points such as button indicator lamps of an operation panel of a domestic tightening machine are connected to a main electric appliance cabinet through a multi-core signal cable, signal wires are numerous and disordered, wiring is labor-consuming and time-consuming, errors are easy to occur, the middle of one signal wire is broken, the whole signal wire cannot be used, and the tightening machine is troublesome to replace.

The product is a controller specially designed for an operation panel, the integration level is high, the performance is stable and reliable, and up to 32 input and output points can be integrated by only two lines.

Disclosure of Invention

in order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing an input/output point controller based on a CAN bus.

The technical scheme of the utility model be, the input/output point controller based on the CAN bus is by the controller bottom plate, controller front panel, controller wiring mouth, CAN bus socket, RS485 socket, input/output point socket, power indicator, CAN bus communication pilot lamp and controller front panel screw are constituteed.

The controller front panel is fixedly installed on the controller bottom plate through a controller front panel screw, a controller wiring port is formed in the controller bottom plate, and 3 sockets, namely a CAN bus socket, an RS485 socket and an input/output point socket, are arranged in the controller wiring port. And the CAN bus socket is provided with a power indicator lamp and a CAN bus communication indicator lamp, the power indicator lamp is used for displaying the power state of the input/output point controller based on the CAN bus, and the CAN bus communication indicator lamp is used for displaying the CAN bus communication state of the input/output point controller based on the CAN bus and the host.

A core control circuit structure of an input and output point controller based on a CAN bus takes a multi-functional system on a chip STM32 single chip microcomputer as a core control unit and is responsible for input detection, output control, indicator light display, communication and data processing tasks of various signals. When the input/output point controller based on the CAN bus is electrified, the power indicator lamp is lightened to prompt that the power indicator lamp is electrified; when the input/output point circuit detects an input point, the STM32 singlechip sends the collected input point data to the host through the CAN bus communication circuit, the host processes the data and then sends the data of the output point back to the STM32 singlechip through the CAN bus communication circuit, and the STM32 singlechip controls the input/output point circuit to output a corresponding output point; when the input/output point controller based on the CAN bus is communicated with the host through the CAN bus communication circuit, the CAN bus communication indicator lamp is used for displaying the CAN bus communication state of the controller and the host; the input and output point controller based on the CAN bus CAN also transmit partial data to other types of controllers through an RS485 communication circuit to form data exchange, so that the input and output functions of the controller are expanded.

The utility model has the advantages of it is following: the product has high module integration level, no redundant wiring, small volume, convenient installation and debugging and difficult error. The product adopts a mature and stable mainstream chip STM32 single-chip microcomputer in the industrial market as a main control chip, and the performance is stable and reliable. This product modular structure, a plurality of controllers can be hung to an automatically controlled cabinet.

Drawings

FIG. 1 is a schematic diagram of an input/output point controller based on a CAN bus;

Fig. 2 is a core control circuit structure of an input/output point controller based on a CAN bus.

Controller bottom plate 1, controller front panel 2, controller wiring mouth 3, CAN bus socket 4, RS485 socket 5, input/output point socket 6, power indicator 7, CAN bus communication pilot lamp 8, controller front panel screw 9, STM32 singlechip 10, input/output point circuit 11, RS485 communication circuit 12, CAN bus communication circuit 13, power indicator 14, CAN bus communication pilot lamp 15.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

the input and output point controller based on the CAN bus is composed of a controller bottom plate 1, a controller front panel 2, a controller wiring port 3, a CAN bus socket 4, an RS485 socket 5, an input and output point socket 6, a power indicator lamp 7, a CAN bus communication indicator lamp 8 and a controller front panel screw 9. As shown in fig. 1.

The controller front panel 2 is fixedly mounted on the controller bottom plate 1 through a controller front panel screw 9, a controller wiring port 3 is arranged on the controller bottom plate 1, and 3 sockets, namely a CAN bus socket 4, an RS485 socket 5 and an input/output point socket 6, are arranged in the controller wiring port 3. The CAN bus socket 4 is provided with a power indicator lamp 7 and a CAN bus communication indicator lamp 8, the power indicator lamp 7 is used for displaying the power state of the input/output point controller based on the CAN bus, and the CAN bus communication indicator lamp 8 is used for displaying the CAN bus communication state of the input/output point controller based on the CAN bus and the host.

The core control circuit structure of the input/output point controller based on the CAN bus is shown in fig. 2, and a multi-functional system on a chip STM32 singlechip 10 is used as a core control unit of the core control circuit and is responsible for input detection, output control, indicator light display, communication and data processing tasks of various signals. When the input/output point controller based on the CAN bus is electrified, the power indicator lamp 7 is lightened to prompt that the controller is electrified; when the input/output point circuit 11 detects an input point, the STM32 singlechip 10 sends the collected input point data to the host through the CAN bus communication circuit 13, the host processes the data and then sends the output point data back to the STM32 singlechip 10 through the CAN bus communication circuit 13, and the STM32 singlechip 10 controls the input/output point circuit 11 to output a corresponding output point; when the input/output point controller based on the CAN bus communicates with the host through the CAN bus communication circuit 13, the CAN bus communication indicator lamp 8 is used for displaying the CAN bus communication state of the controller and the host; the input and output point controller based on the CAN bus CAN also transmit part of data to other types of controllers through the RS485 communication circuit 12 to form data exchange, so that the input and output functions of the controller are expanded.

Claims

1. The utility model provides an input/output point controller based on CAN bus, includes controller bottom plate (1), controller front panel (2), controller wiring mouth (3), CAN bus socket (4), RS485 socket (5), input/output point socket (6), power indicator (7) and CAN bus communication pilot lamp (8), its characterized in that: the controller front panel (2) is fixedly installed on a controller bottom plate (1) through a controller front panel screw (9), a controller wiring port (3) is arranged on the controller bottom plate (1), 3 sockets are arranged inside the controller wiring port (3), namely a CAN bus socket (4), an RS485 socket (5) and an input/output point socket (6), a power indicator lamp (7) and a CAN bus communication indicator lamp (8) are arranged on the CAN bus socket (4), the power indicator lamp (7) is used for displaying a power-on state, and the CAN bus communication indicator lamp (8) is used for displaying a CAN bus communication state;

The STM32 singlechip (10) is the core control unit, and when input point was detected in input/output point circuit (11), STM32 singlechip (10) sent the input point data of gathering to the host computer through CAN bus communication circuit (13), sent the data of output point back STM32 singlechip (10) through CAN bus communication circuit (13) after the host computer processing again.

2. The CAN-bus-based input/output point controller of claim 1, wherein: the controller can also transmit part of data to the controller through the RS485 communication circuit (12) to form data exchange, thereby expanding the input and output functions of the controller.