Multifunctional serial port communication cable

Abstract

The utility model relates to the technical field of computer communication, and provides a multifunctional serial port communication cable. The multifunctional serial port communication cable comprises a first working end and a second working end, the first working end is provided with a first communication serial port, and the second working end is provided with a second communication serial port and a third communication serial port; the first communication serial port is used for connecting computer equipment; the second communication serial port and the third communication serial port are used for connecting communication equipment; each pin of the first communication serial port is correspondingly connected with each pin of the second communication serial port in sequence in a first connection mode; each pin of the first communication serial port is correspondingly connected with each pin of the third communication serial port in sequence in a second connection mode; the serial port communication standard between the first communication serial port and the second communication serial port is different from the serial port communication standard between the first communication serial port and the third communication serial port.

Description

Technical Field

[0001] The utility model relates to the technical field of computer communication, in particular to a multifunctional serial port communication cable. Background Art

[0002] In the field of computer science and communication, serial communication is an important data transmission method, which transmits data in bits through a receiving line and a transmitting line. This communication method is widely used in data exchange between peripherals and computers, covering a variety of communication protocols, such as RS232, RS422, RS485, USB, I2C, SPI, etc. These protocols define how data is transmitted in serial form between the sender and the receiver.

[0003] In serial communication, the serial port, as an interface standard, defines the electrical specifications of the interface, but does not specify the style of the interface plug-in cable and the specific protocol used. This leads to different pin connections in the serial interface produced by different equipment manufacturers in practical applications, especially in the field of industrial control. Therefore, when a computer needs to communicate with different industrial control equipment, the connection cable used often needs to be a special cable provided by the equipment manufacturer, which cannot achieve universality. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the purpose of the utility model is to propose a multifunctional serial communication cable, and to design a new cable connection scheme based on the summarized serial port connection methods of commonly used devices. Ensure that the cable can be compatible with the corresponding relationship of the serial port pin connection of multiple devices at the same time, so as to achieve the purpose of connecting multiple devices with one cable. Therefore, the utility model can realize communication with multiple devices with only one cable in actual application, save the cost of cable procurement, provide convenience for the control and maintenance of equipment, and expand the scope of application.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model proposes a multifunctional serial port communication cable, including a first working end and a second working end, the first working end is provided with a first communication serial port, and the second working end is provided with a second communication serial port and a third communication serial port; the first communication serial port is used to connect a computer device; the second communication serial port and the third communication serial port are used to connect a communication device; each pin of the first communication serial port is connected to each pin of the second communication serial port in sequence in a first connection manner; each pin of the first communication serial port is connected to each pin of the third communication serial port in sequence in a second connection manner; the serial port communication standard between the first communication serial port and the second communication serial port is different from the serial port communication standard between the first communication serial port and the third communication serial port.

[0006] In addition, the multifunctional serial communication cable according to the above embodiment of the utility model may also have the following additional technical features:

[0007] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0008] The first communication serial port is a public RS232 serial port; the second communication serial port is a full-function RS232 serial port; and the third communication serial port is a HNC24V serial port.

[0009] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0010] The public RS232 serial port includes pin 1-1, pin 1-2, pin 1-3, pin 1-4, pin 1-5, pin 1-6, pin 1-7, pin 1-8, and pin 1-9; the full-function RS232 serial port includes pin 2-1, pin 2-2, pin 2-3, pin 2-4, pin 2-5, pin 2-6, pin 2-7, pin 2-8, and pin 2-9; the HNC24V serial port includes pin 3-1, pin 3-2, pin 3-3, pin 3-4, pin 3-5, pin 3-6, pin 3-7, pin 3-8, and pin 3-9.

[0011] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0012] The pin 1-2 is connected to the pin 2-3, the pin 1-3 is connected to the pin 2-2, the pin 1-4 is connected to the pin 2-6, the pin 1-5 is connected to the pin 2-5, the pin 1-6 is connected to the pin 2-4, the pin 1-7 is connected to the pin 2-8, and the pin 1-8 is connected to the pin 2-7.

[0013] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0014] The pin 1-2 is connected to the pin 3-2, the pin 1-3 is connected to the pin 3-6, the pin 1-5 is connected to the pin 3-5, the pin 1-7 is connected to the pin 3-3, and the pin 1-8 is connected to the pin 3-7.

[0015] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0016] The connection standard between pin 1-1 and pin 2-1 is DCD, the connection standard between pin 1-2 and pin 2-2 is RxD, the connection standard between pin 1-3 and pin 2-3 is TxD, the connection standard between pin 1-4 and pin 2-4 is DTR, the connection standard between pin 1-5 and pin 2-5 is GND, the connection standard between pin 1-6 and pin 2-6 is DSR, the connection standard between pin 1-7 and pin 2-7 is RTS, and the connection standard between pin 1-8 and pin 2-8 is CTS.

[0017] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0018] The connection standard of pin 3-1 is CAN_GND, the connection standard of pin 3-2 is TxD, the connection standard of pin 3-3 is CTS, the connection standard of pin 3-4 is 24VN, the connection standard of pin 3-5 is 0VN, the connection standard of pin 3-6 is RxD, the connection standard of pin 3-7 is RTS, the connection standard of pin 3-8 is CAN_H, and the connection standard of pin 3-9 is CAN_L.

[0019] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0020] Standard RS232 communication is achieved between the public RS232 serial port and the full-function RS232 serial port.

[0021] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0022] The public RS232 serial port and the HNC24V serial port realize HNC PIN4=24VDC standard communication.

[0023] According to some embodiments of the present utility model, the multifunctional serial communication cable further includes:

[0024] Each pin of the first communication serial port and each pin of the second communication serial port, as well as each pin of the first communication serial port and each pin of the third communication serial port are connected by a cable having no less than 7 internal wires and a cross-sectional area of ​​a single wire no less than 0.14 square millimeters.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a multifunctional serial communication cable provided in an embodiment of the utility model.

[0028] Figure numerals: 100 - multi-function serial communication cable, 101 - first working end, 102 - second working end, 1 - first communication serial port, 2 - second communication serial port, 3 - third communication serial port. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] As described in the background technology section, in communication and computer science, serial communication is a way of transmitting data bit by bit, in which data is divided into bits for transmission, and each bit is synchronized by a synchronization bit or a counter. In the field of industrial automation and communication, communication between a nine-pin serial port of a computer (PC) and a Rexroth HNC24V serial port or other RS232 serial port is a common requirement. However, due to differences in the corresponding relationship between the serial port pin connections of different equipment manufacturers, traditional serial communication cables are usually only applicable to specific devices and cannot achieve universality. This brings many inconveniences to users in practical applications, such as the need to prepare multiple different types of cables, increase the complexity of connection and configuration, and may lead to reduced reliability and efficiency of communication.

[0032] In the process of implementing the utility model, the applicant found that by redesigning the pins in the serial port and correspondingly connecting them, the purpose of adapting to the serial port connection requirements of different devices can be achieved. This means that the same cable can be used to connect devices with different serial port pin layouts without changing the cable. Using only one cable for communication connection can not only save the cost of purchasing cables and production costs, but also realize that only one cable is used to communicate with multiple different equipment manufacturers, making the control and maintenance of the equipment more convenient.

[0033] The technical solution of the present utility model is further described in detail below through specific embodiments.

[0034] refer to Figure 1 , is a schematic diagram of the structure of a multifunctional serial communication cable provided in an embodiment of the utility model.

[0035] As shown in the figure, the multifunctional serial communication cable 100 provided by the embodiment of the utility model comprises: a first working end 101 and a second working end 102, wherein the first working end 101 is provided with a first communication serial port 1, and the second working end 102 is provided with a second communication serial port 2 and a third communication serial port 3. The first communication serial port 1 is used to connect computer equipment; the second communication serial port 2 and the third communication serial port 3 are used to connect communication equipment; each pin of the first communication serial port 1 is sequentially connected with each pin of the second communication serial port 2 in a first connection mode; each pin of the first communication serial port 1 is sequentially connected with each pin of the third communication serial port 3 in a second connection mode; the serial communication standard between the first communication serial port 1 and the second communication serial port 2 is different from the serial communication standard between the first communication serial port 1 and the third communication serial port 3.

[0036] The communication devices include but are not limited to desktop computers, mobile phones, mobile computers, tablet computers, media players, smart wearable devices, personal digital assistants (PDAs) or other electronic devices capable of achieving the above functions.

[0037] As an optional embodiment, the first communication serial port 1 is a public RS232 serial port; the second communication serial port 2 is a full-function RS232 serial port; and the third communication serial port 3 is a HNC24V serial port.

[0038] It should be noted that RS232 serial port refers to a serial port that uses RS232 protocol for data transmission. It is often used in the industrial field and in the debugging and testing of electronic equipment. It is a physical interface in the computer motherboard or external device for exchanging data with other serial port devices. By using RS232 serial port, the computer can communicate with many external devices, such as modems, routers, serial printers, industrial automation equipment, etc. When using RS232 serial port for data transmission, it is necessary to determine the communication parameters of the serial port device, such as baud rate, data bits, stop bits, parity check, etc.

[0039] It should be noted that the HNC24V serial port is a serial port interface standard based on the HNC / HAAS serial communication protocol. The HNC24V serial port communication standard includes two level standards, RS232 and TTL, and is mainly used in CNC machine tools (such as drilling machines, milling machines, lathes, etc.) for data exchange with computers or other devices. Compared with the standard RS232 serial port, the HNC24V serial port has a fast transmission rate and a high signal level. In addition, the HNC24V serial port is often used to transmit data information related to machine tool operations, such as processing programs, axis position information, alarm information, etc.

[0040] As an optional embodiment, the public RS232 serial port includes pin 1-1, pin 1-2, pin 1-3, pin 1-4, pin 1-5, pin 1-6, pin 1-7, pin 1-8, and pin 1-9; the full-function RS232 serial port includes pin 2-1, pin 2-2, pin 2-3, pin 2-4, pin 2-5, pin 2-6, pin 2-7, pin 2-8, and pin 2-9; the HNC24V serial port includes pin 3-1, pin 3-2, pin 3-3, pin 3-4, pin 3-5, pin 3-6, pin 3-7, pin 3-8, and pin 3-9. As an optional embodiment, the first connection method is: pin 1-2 is connected to pin 2-3, pin 1-3 is connected to pin 2-2, pin 1-4 is connected to pin 2-6, pin 1-5 is connected to 2-5, pin 1-6 is connected to pin 2-4, pin 1-7 is connected to pin 2-8, and pin 1-8 is connected to pin 2-7.

[0041] As an optional embodiment, the second connection mode is: pin 1-2 is connected to pin 3-2, pin 1-3 is connected to pin 3-6, pin 1-5 is connected to pin 3-5, pin 1-7 is connected to pin 3-3, and pin 1-8 is connected to pin 3-7.

[0042] It should be noted that the pins of the public RS232 serial port correspond to the numbers of the connected wires, that is, pin 1-1 is connected to wire 1, pin 1-2 is connected to wire 2, pin 1-3 is connected to wire 3, pin 1-4 is connected to wire 4, pin 1-5 is connected to wire 5, pin 1-6 is connected to wire 6, pin 1-7 is connected to wire 7, pin 1-8 is connected to wire 8, and pin 1-9 is connected to wire 9. The wires corresponding to the pins of the full-function RS232 serial port and the HNC24V serial port refer to the first connection method and the second connection method, and use the wire numbers described in the public RS232 serial port.

[0043] Refer to Table 1, which is a table of standard connection methods of RS232 serial port pins provided in an embodiment of the present utility model.

[0044] Table 11 DCD 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9

[0045] As an optional embodiment, the connection standard between pins 1-1 and 2-1 is DCD, the connection standard between pins 1-2 and 2-2 is RxD, the connection standard between pins 1-3 and 2-3 is TxD, the connection standard between pins 1-4 and 2-4 is DTR, the connection standard between pins 1-5 and 2-5 is GND, the connection standard between pins 1-6 and 2-6 is DSR, the connection standard between pins 1-7 and 2-7 is RTS, and the connection standard between pins 1-8 and 2-8 is CTS.

[0046] It should be noted that, among them, Data Carrier Detect (DCD) is used to detect whether a peripheral is ready to receive data; Receive Data (RxD) is used to receive data sent from the peripheral; Transmit Data (TxD) is used to send data to the peripheral; Send Data Terminal Ready (DTR) is used to inform the receiving end to be ready to receive data; Ground (GND) is used to establish a reference ground for the signal; Receive Data Set Ready (DSR) is used to inform the sending end that the receiving end is ready to start sending data; Request To Send (RTS) is used to send a data sending request to the receiving end, and the receiving end needs to respond before sending data; Send Data Clear (CTS) is used to inform the receiving end that it is ready to receive data.

[0047] Refer to Table 2, which is a table of standard connection methods of HNC24V serial port pins provided in an embodiment of the present utility model.

[0048] Table 2

[0049]

[0050]

[0051] As an optional embodiment, the connection standard of pin 3-1 is CAN_GND, the connection standard of pin 3-2 is TxD, the connection standard of pin 3-3 is CTS, the connection standard of pin 3-4 is 24VN, the connection standard of pin 3-5 is 0VN, the connection standard of pin 3-6 is RxD, the connection standard of pin 3-7 is RTS, the connection standard of pin 3-8 is CAN_H, and the connection standard of pin 3-9 is CAN_L.

[0052] It should be noted that, CAN_GND (CAN Ground) is the ground wire used to connect the CAN system, which provides the reference ground of the system; 24VN is the positive power pole of the HNC24V serial port, which is used to provide 24V power supply; 0VN is the power ground wire, which is used to maintain the stability and safety of the circuit; CAN_H (CAN-High) is the pin for transmitting CAN high-level signals, which is the positive polarity line for transmitting data in the CAN bus; CAN_L (CAN-Low) is the pin for transmitting CAN low-level signals, which is the negative polarity line for transmitting data in the CAN bus.

[0053] As an optional embodiment, standard RS232 communication is implemented between the public RS232 serial port and the full-function RS232 serial port.

[0054] Standard RS232 communication can be achieved between the first communication serial port 1 and the second communication serial port 2, for example, the serial communication standard between the computer and the equipment TP170A / B, OP170B, etc., that is, the computer and the 1F1A / 1F2 interface communication of the TP170 / OP170 series panel.

[0055] As an optional embodiment, HNC PIN4=24VDC standard communication is implemented between the public RS232 serial port and the HNC24V serial port.

[0056] The first communication serial port 1 and the third communication serial port 3 can realize HNC PIN4=24VDC standard communication, for example, the computer communicates with the device X4 PIN4=24VDC serial port standard, that is, the computer communicates with controllers such as HNC100, HNC100-2, HNC1SIM and HNC100-C.

[0057] It should be noted that HNC PIN4 = 24VDC communication is a communication method used by HNC / HAAS control systems, which is usually used to connect CNC machine tool spindle motors, overcut motors, hydraulic solenoid valves and other equipment. It uses HNC24V serial port protocol for communication and provides 24V DC power through the signal line. This communication method has the advantages of fast communication speed, good stability, and strong anti-interference ability, which can meet the communication requirements of CNC machine tools during high-speed and high-precision processing.

[0058] As an optional embodiment, each pin of the first communication serial port 1 and each pin of the second communication serial port 2, as well as each pin of the first communication serial port 1 and each pin of the third communication serial port 3 are connected by a cable having no less than 7 internal wires and a cross-sectional area of ​​a single wire of no less than 0.14 square millimeters.

[0059] Specifically, in each pin of the first communication serial port 1, the second communication serial port 2 and the third communication serial port 3, the number of wires connected to each pin is not less than 7 and the cross-sectional area of ​​a single wire is not less than 0.14 square millimeters. Cables connected in this way can make signal transmission more stable and the transmission distance longer, while improving communication speed and avoiding communication wiring errors, etc., which improves the transmission quality and speed in long-distance, high-speed data transmission scenarios, and is a more stable and reliable connection method.

[0060] From the above description, it can be seen that the multifunctional serial communication cable provided by the utility model includes a first working end and a second working end, the first working end is provided with a first communication serial port, and the second working end is provided with a second communication serial port and a third communication serial port; wherein, the first communication serial port is used to connect a computer device; the second communication serial port and the third communication serial port are used to connect a communication device; each pin of the first communication serial port is sequentially connected with each pin of the second communication serial port in a first connection mode; each pin of the first communication serial port is sequentially connected with each pin of the third communication serial port in a second connection mode; the serial communication standard between the first communication serial port and the second communication serial port is different from the serial communication standard between the first communication serial port and the third communication serial port. The utility model redesigns the linking scheme of serial ports of different communication standards according to the pin type, re-assigns the connection mode of serial ports of different communication standards according to the pins, and makes them into one cable for use, so that only one cable can be used to communicate with multiple devices, saving the cable procurement cost while making it more convenient to control and repair the equipment.

[0061] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0062] Although the spirit and principle of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and such division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims. The scope of the attached claims conforms to the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A multifunctional serial communication cable, characterized in that: It comprises a first working end and a second working end, wherein the first working end is provided with a first communication serial port, and the second working end is provided with a second communication serial port and a third communication serial port; The first communication serial port is used to connect to a computer device; The second communication serial port and the third communication serial port are used to connect to a communication device; Each pin of the first communication serial port is correspondingly connected with each pin of the second communication serial port in sequence in a first connection manner; The pins of the first communication serial port and the pins of the third communication serial port are sequentially connected in a corresponding manner in a second connection manner; The serial port communication standard between the first communication serial port and the second communication serial port is different from the serial port communication standard between the first communication serial port and the third communication serial port.

2. The multifunctional serial communication cable according to claim 1, characterized in that: The first communication serial port is a public RS232 serial port; the second communication serial port is a full-function RS232 serial port; and the third communication serial port is a HNC24V serial port.

3. The multifunctional serial communication cable according to claim 2, characterized in that: The public RS232 serial port includes pin 1-1, pin 1-2, pin 1-3, pin 1-4, pin 1-5, pin 1-6, pin 1-7, pin 1-8, and pin 1-9; the full-function RS232 serial port includes pin 2-1, pin 2-2, pin 2-3, pin 2-4, pin 2-5, pin 2-6, pin 2-7, pin 2-8, and pin 2-9; the HNC24V serial port includes pin 3-1, pin 3-2, pin 3-3, pin 3-4, pin 3-5, pin 3-6, pin 3-7, pin 3-8, and pin 3-9.

4. The multifunctional serial communication cable according to claim 3, characterized in that: The first connection mode is: The pin 1-2 is connected to the pin 2-3, the pin 1-3 is connected to the pin 2-2, the pin 1-4 is connected to the pin 2-6, the pin 1-5 is connected to the pin 2-5, the pin 1-6 is connected to the pin 2-4, the pin 1-7 is connected to the pin 2-8, and the pin 1-8 is connected to the pin 2-7.

5. The multifunctional serial communication cable according to claim 3, characterized in that: The second connection mode is: The pin 1-2 is connected to the pin 3-2, the pin 1-3 is connected to the pin 3-6, the pin 1-5 is connected to the pin 3-5, the pin 1-7 is connected to the pin 3-3, and the pin 1-8 is connected to the pin 3-7.

6. The multifunctional serial communication cable according to claim 3, characterized in that: The connection standard between pin 1-1 and pin 2-1 is DCD, the connection standard between pin 1-2 and pin 2-2 is RxD, the connection standard between pin 1-3 and pin 2-3 is TxD, the connection standard between pin 1-4 and pin 2-4 is DTR, the connection standard between pin 1-5 and pin 2-5 is GND, the connection standard between pin 1-6 and pin 2-6 is DSR, the connection standard between pin 1-7 and pin 2-7 is RTS, and the connection standard between pin 1-8 and pin 2-8 is CTS.

7. The multifunctional serial communication cable according to claim 3, characterized in that: The connection standard of pin 3-1 is CAN_GND, the connection standard of pin 3-2 is TxD, the connection standard of pin 3-3 is CTS, the connection standard of pin 3-4 is 24VN, the connection standard of pin 3-5 is 0VN, the connection standard of pin 3-6 is RxD, the connection standard of pin 3-7 is RTS, the connection standard of pin 3-8 is CAN_H, and the connection standard of pin 3-9 is CAN_L.

8. The multifunctional serial communication cable according to claim 3, characterized in that: Standard RS232 communication is achieved between the public RS232 serial port and the full-function RS232 serial port.

9. The multifunctional serial communication cable according to claim 3, characterized in that: The public RS232 serial port and the HNC24V serial port realize HNC PIN4=24VDC standard communication.

10. The multifunctional serial communication cable according to claim 1, characterized in that: Each pin of the first communication serial port and each pin of the second communication serial port, as well as each pin of the first communication serial port and each pin of the third communication serial port are connected by a cable having no less than 7 internal wires and a cross-sectional area of ​​a single wire no less than 0.14 square millimeters.

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