Improved communication module and server using same

Abstract

The utility model provides an improved communication module and a server using the same, which are applied to the technical field of server control, the improved communication module comprises a serial port communication unit, a main control unit and a bus communication unit, the main control unit comprises a main control chip, the serial port communication unit comprises a conversion chip, and the conversion chip is connected with the bus communication unit. The bus communication unit comprises a protocol processor, a signal isolation chip and a DeviceNet transceiver, the main control chip is connected with the protocol processor and the conversion chip, and the protocol processor is connected with the DeviceNet transceiver through the signal isolation chip; the server is connected with the communication module through the server interface, and the communication module is connected with the PC through the PC interface. The server is connected with the personal PC through the communication module, so that an engineer can analyze the motion state of the servo motor in real time through upper computer software, the server does not need to be detached from a machine table, and therefore the servo motor is monitored and debugged under the condition that production operation is not affected.

Description

Technical Field

[0001] This utility model belongs to the field of server control technology, specifically relating to an improved communication module and a server using the module. Background Technology

[0002] With the rapid development of technology, the semiconductor processing industry is booming. Semiconductor equipment servo devices, as a crucial component of semiconductor material production, play a vital role in driving technological progress and promoting industrial development. In semiconductor manufacturing, wafer fabrication is a highly precise, complex, and critical process. Even slight errors can lead to a decline in the quality of the produced wafers, causing problems in subsequent chip production. Motors control the movement of the trays carrying the materials, and due to the extremely high precision required in wafer fabrication, the control accuracy of these motors is also extremely demanding. If the motor's precision is insufficient, even a few extra or missing steps during movement can damage the materials, resulting in significant economic losses.

[0003] Currently, the servo drives used in China's semiconductor manufacturing industry are only used to control motors on the machine tool. The motor's motion status can only be observed at a fixed point on the machine tool. It is not possible to perform graphical analysis of the specific motion status curve of the motor anytime and anywhere. When problems occur on-site, a lot of manpower and resources are required to troubleshoot, which reduces production efficiency. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide an improved communication module, which configures a signal isolation chip and a DeviceNet transceiver between the protocol processor and the physical bus to improve the anti-interference of data transmission and ensure the stability of bus protocol parsing between the main control chip and the protocol processor.

[0005] An improved communication module includes a serial communication unit, a main control unit, and a bus communication unit. The main control unit includes a main control chip U8, the serial communication unit includes a conversion chip U7, and the bus communication unit includes a protocol processor U6, a signal isolation chip U4, and a DeviceNet transceiver U3. The main control chip U8 is connected to the protocol processor U6 and the conversion chip U7, respectively. The protocol processor U6 is connected to the DeviceNet transceiver U3 through the signal isolation chip U4, and the DeviceNet transceiver U3 is connected to the physical bus.

[0006] Preferably, it also includes an interface detection unit, which includes an optical isolator U5, and the optical isolator U5 is connected to the protocol processor U6.

[0007] Preferably, it also includes a power supply unit for supplying power to the serial communication unit, the main control unit, and the bus communication unit. The power supply unit includes a voltage regulator chip U1 for converting the input voltage into a first voltage. The VIN pin of the voltage regulator chip U1 is connected to an inductor L1, and the other end of the inductor L1 is connected to a voltage protection circuit. Capacitors C1 and C2 are connected to the two ends of the inductor L1, respectively. The other ends of capacitors C1 and C2 are connected to the GND pin and the ON / OFF pin of the voltage regulator chip U1, respectively. The GND pin and the ON / OFF pin of the voltage regulator chip U1 are also connected to a diode D2, and the other end of the diode D2 is connected to the voltage protection circuit. The OUTPUT pin of the voltage regulator chip U1 is connected to an inductor L2 and an inductor L3 connected in series. The end of the inductor L3 furthest from the voltage regulator chip U1 serves as the output terminal to output the first voltage.

[0008] Preferably, the output terminal of the first voltage is also connected to a capacitor C4, the other end of which is grounded, and a capacitor C3 is also connected between inductors L2 and L3, the other end of which is grounded.

[0009] Preferably, the OUTPUT pin of the voltage regulator chip U1 is also connected to a diode D3, and the other end of the diode D3 is grounded to prevent current from flowing back into the inductor; the FB pin of the voltage regulator chip U1 is connected between inductors L2 and L3 to detect the output voltage and make adjustments.

[0010] Preferably, the voltage protection circuit includes a switching transistor Q1 and a switching transistor Q2. The emitter of the switching transistor Q1 is connected to the input voltage. A diode D1 and a resistor R1 are connected in parallel to the emitter of the switching transistor Q1. The other end of the diode D1 and the resistor R1 are connected to and connected to a resistor R2. The other end of the resistor R2 is grounded.

[0011] Preferably, the power supply unit further includes a voltage regulator chip U2 for converting the first voltage into a second voltage. The INPUT pin of the voltage regulator chip U2 is connected to the first voltage. The INPUT pin of the voltage regulator chip U2 is also connected to capacitors C5 and C6, and the other ends of capacitors C5 and C6 are grounded. The OUT pin of the voltage regulator chip U2 outputs the second voltage. The OUT pin of the voltage regulator chip U2 is also connected to capacitors C7 and C8 in parallel, and the other ends of capacitors C7 and C8 are grounded.

[0012] Another objective of this invention is to provide a server using the aforementioned improved communication module. The server is connected to the communication module via a server interface, and the communication module is connected to a PC via a PC interface, enabling data transmission between the server and the PC through the communication module.

[0013] Preferably, both the server interface and the PC interface are connected to the main control chip U8 of the communication module. The PC interface includes a Biel diode D5 and an interface J1. The VBUS switch pin of the interface J1 is connected to the power supply BAT through a fuse F1. The DP pin of the interface J1 is controlled by the main control chip U8. The control signal of the main control chip U8 is connected to the base of the switching transistor Q6 through a resistor R31. The base of the switching transistor Q6 is also connected to resistors R29 and R30. The collector of the switching transistor Q6 is connected to a second voltage. The emitter of the switching transistor Q6 is connected to a resistor R28. The other end of the resistor R28 is connected to the DP pin.

[0014] Preferably, when the control signal of the main control chip U8 is high, the transistor Q6 is turned on and pulls the voltage of the DP pin low, causing interface J1 to lose connection; when the control signal of the main control chip U8 is low, the transistor Q6 is turned off and pulls the voltage of the DP pin high, allowing interface J1 to connect normally.

[0015] The beneficial effects of this utility model are: the improved communication module and the server using the module connect the server to a personal PC through the communication module, allowing engineers to analyze the motion status of the servo motor in real time through host computer software, without having to remove the server from the machine, thus monitoring and debugging the servo motor without affecting production operations.

[0016] A signal isolation chip and a DeviceNet transceiver are configured between the protocol processor and the physical bus to improve the anti-interference capability of data transmission and ensure the stability of bus protocol parsing between the main control chip and the protocol processor. In addition, an interface detection unit is configured for the protocol processor, enabling individual detection and signal filtering of the protocol processor's power input.

[0017] By connecting the server's CPU to a personal PC via a communication module, the server can be programmed with different software and algorithms to adapt to different motor working environments, thereby reducing production costs and improving production efficiency. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the principle of this utility model;

[0020] Figure 2 This is the circuit diagram of the main control unit of this utility model;

[0021] Figure 3This is the circuit diagram of the voltage regulator chip U1 of this utility model;

[0022] Figure 4 This is the circuit diagram of the voltage regulator chip U2 of this utility model;

[0023] Figure 5 This is a circuit diagram of the bus communication unit of this utility model;

[0024] Figure 6 This is the circuit diagram of the protocol processor U6 of this utility model;

[0025] Figure 7 This is a circuit diagram of the interface detection unit of this utility model;

[0026] Figure 8 This is a circuit diagram of the serial communication unit of this utility model;

[0027] Figure 9 This is the circuit diagram of the PC interface of this utility model;

[0028] Figure 10 This is a circuit diagram of the server interface of this utility model. Detailed Implementation

[0029] Example 1

[0030] like Figure 1 As shown, an improved communication module includes a serial communication unit, a main control unit, a bus communication unit, an interface detection unit, and a power supply unit.

[0031] like Figure 2 As shown, the main control unit is used for data processing, communication protocol parsing, and logic control. The main control unit includes a main control chip U8. In this embodiment, the main control chip U8 is an STM32F103CBT6. The main control chip U8 is equipped with a clock circuit, a reset circuit, and a debugging circuit.

[0032] The power supply unit converts industrial power into a first voltage and a second voltage to power the entire system. The first voltage is 5V, and the second voltage is 3.3V. For example... Figure 3 , Figure 4 As shown, the power supply unit includes voltage regulator chip U1 and voltage regulator chip U2. Voltage regulator chip U1 is used to convert the input voltage into a first voltage, and voltage regulator chip U2 is used to convert the first voltage into a second voltage, thereby meeting the power supply requirements of the entire system.

[0033] like Figure 3As shown, the voltage regulator chip U1 in this embodiment is model LM2594MX-5.0 / NOPB. An inductor L1 is connected to the VIN pin of the voltage regulator chip U1. The other end of inductor L1 is connected to a voltage protection circuit. Capacitors C1 and C2 are connected to the two ends of inductor L1, respectively. The other ends of capacitors C1 and C2 are connected to the GND and ON / OFF pins of the voltage regulator chip U1, respectively. Capacitors C1 and C2 act as filter capacitors to reduce input voltage fluctuations. A diode D2 is also connected to the GND and ON / OFF pins of the voltage regulator chip U1. The other end of diode D2 is connected to the voltage protection circuit.

[0034] The OUTPUT pin of the voltage regulator chip U1 is connected to inductors L2 and L3 in series for further filtering and reducing high-frequency noise. The end of inductor L3 furthest from the voltage regulator chip U1 serves as the output terminal, providing the first voltage. A capacitor C4 is also connected to the output terminal of this first voltage, with the other end of C4 grounded. Capacitor C4 acts as a decoupling capacitor, further reducing high-frequency noise. A capacitor C3 is also connected between inductors L2 and L3, with the other end of C3 grounded. A large-capacity capacitor, C3, is used to improve the stability of low-frequency voltage and reduce ripple.

[0035] In addition, the OUTPUT pin of the voltage regulator chip U1 is connected to diode D3, with the other end of diode D3 grounded. Diode D3 acts as a protection diode to prevent reverse current from flowing into the inductor. The FB pin of the voltage regulator chip U1 is connected between inductors L2 and L3 to detect and adjust the output voltage, ensuring a stable initial output voltage.

[0036] The voltage protection circuit includes switching transistors Q1 and Q2. The emitter of switching transistor Q1 is connected to the input voltage. A diode D1 and a resistor R1 are connected in parallel to the emitter of switching transistor Q1. The other ends of diode D1 and resistor R1 are connected to and connected to resistor R2, and the other end of resistor R2 is grounded. Diode D1 is used to prevent transient interference from the input voltage and improve the stability of the input voltage.

[0037] The base of switch Q1 is connected to the emitter of switch Q2. The collectors of switch Q1 and switch Q2 are connected and connected to inductor L1. The base of switch Q2 is connected to the common terminal of diode D1, resistor R1, and resistor R2.

[0038] like Figure 4As shown, the voltage regulator chip U2 in this embodiment is model LM1117-33. The INPUT pin of the voltage regulator chip U2 is connected to a first voltage. The INPUT pin of the voltage regulator chip U2 is also connected to capacitors C5 and C6, the other ends of which are grounded. The OUT pin of the voltage regulator chip U2 outputs a second voltage. The OUT pin of the voltage regulator chip U2 is also connected to capacitors C7 and C8 in parallel, the other ends of which are grounded.

[0039] like Figure 5 , Figure 6 As shown, the bus communication unit includes a protocol processor U6, a DeviceNet transceiver U3, and a signal isolation chip U4. In this embodiment, the DeviceNet transceiver U3 is a PCA82C251, the signal isolation chip U4 is an ISO7221, and the protocol processor U6 is an IC1220. The DeviceNet bus communication protocol is implemented based on the CAN bus.

[0040] The MCUDeviceNet_TX / MCUDeviceNet_RX pins of the main control chip U8 are connected to the protocol processor U6. The protocol processor U6 parses and receives bus information from the main control chip U8. The protocol processor U6 is equipped with clock and reset circuits. The protocol processor U6 is connected to the DeviceNet transceiver U3 through the signal isolation chip U4. The DeviceNet transceiver U3 is connected to the physical bus. The signal isolation chip U4 is used for signal isolation between the DeviceNet transceiver U3 and the protocol processor U6, which helps improve the stability of data transmission.

[0041] like Figure 7 As shown, the interface detection unit is connected to the bus communication unit and is used for power input detection of the bus communication unit interface. The interface detection unit includes an optocoupler isolator U5. Resistors R7 and R8 are connected to the input terminals of the optocoupler U5. Resistor R7 limits the current flowing through the optocoupler LED to prevent overcurrent damage. Resistors R8 and R7 shunt the current, jointly determining the LED's operating current. Resistors R9 and C9 are connected to the output terminals of the optocoupler U5. Resistor R9 ensures a stable high-level output when the optocoupler is off, and a low-level output when the optocoupler is on. Capacitor C9 filters out high-frequency noise.

[0042] like Figure 8As shown, the serial communication unit includes a conversion chip U7, model MAX232. The MCU232_TX / MCU232_RX pins of the main control chip U8 are connected to the conversion chip U7. The conversion chip U7 is connected to an external device via an RS-232 interface. The external device is a debugging device used to debug the parameters of the main control chip U8. The conversion chip U7 is used to convert RS-232 levels to TTL levels (0 to 3.3V) that the main control chip U8 can recognize, or to convert TTL levels to RS-232 levels, realizing bidirectional signal conversion.

[0043] Example 2

[0044] like Figure 1 As shown, this embodiment proposes a server, including a communication module as described in Embodiment 1. The server is connected to the communication module through a server interface, and the communication module is connected to the PC through a PC interface, thereby realizing the communication connection between the PC and the server and enabling information interaction.

[0045] like Figure 9 , Figure 10 As shown, both the server interface and the PC interface are connected to the main control chip U8 of the communication module. The server interface includes interface J2, which connects the server to the communication module. The PC interface includes an ESD diode D5 and interface J1. The VBUS switch pin of interface J1 is connected to the power supply BAT via fuse F1. Fuse F1 limits current during power input for circuit protection. An ESD diode D5 is connected to interface J1 for electrostatic discharge (ESD) protection.

[0046] The DP pin of interface J1 is controlled by the USB_RENUMn signal of the main control chip U8, enabling the connection and disconnection of interface J1. The USB_RENUMn signal is connected to the base of switching transistor Q6 via resistor R31. The base of switching transistor Q6 is also connected to resistors R29 and R30. The collector of switching transistor Q6 is connected to a second voltage, and the emitter of switching transistor Q6 is connected to resistor R28. The other end of resistor R28 is connected to the DP pin.

[0047] When the USB_RENUMn signal is high, transistor Q6 is turned on, pulling the voltage of the DP pin low and causing interface J1 to lose connection; when the USB_RENUMn signal is low, transistor Q6 is turned off, pulling the voltage of the DP pin high and allowing interface J1 to connect normally.

[0048] Without disconnecting the server from the machine tool, the server can be connected to a personal PC via a communication module to achieve real-time monitoring of the motor's motion status. The motion status curve of the motor can be displayed on the host computer software, helping engineers analyze the motor's motion and identify problems in the production process. Furthermore, this process can be completed without disconnecting the server from the machine tool and the motor, preventing machine downtime and ensuring that production efficiency remains unaffected.

[0049] It should be noted that the USB interface or Type-C interface shown in the circuit diagram of this utility model can be replaced according to actual needs and is not limited to the interface type shown in the attached drawings.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved communication module, characterized in that, The device includes a serial communication unit, a main control unit, and a bus communication unit. The main control unit includes a main control chip U8, the serial communication unit includes a conversion chip U7, and the bus communication unit includes a protocol processor U6, a signal isolation chip U4, and a DeviceNet transceiver U3. The main control chip U8 is connected to the protocol processor U6 and the conversion chip U7, respectively. The protocol processor U6 is connected to the DeviceNet transceiver U3 through the signal isolation chip U4, and the DeviceNet transceiver U3 is connected to the physical bus.

2. The improved communication module according to claim 1, characterized in that, It also includes an interface detection unit, which includes an optical isolator U5, and the optical isolator U5 is connected to the protocol processor U6.

3. The improved communication module according to claim 1, characterized in that, It also includes a power supply unit for powering the serial communication unit, the main control unit, and the bus communication unit. The power supply unit includes a voltage regulator chip U1 for converting the input voltage into a first voltage. The VIN pin of the voltage regulator chip U1 is connected to an inductor L1, and the other end of the inductor L1 is connected to a voltage protection circuit. The two ends of the inductor L1 are respectively connected to capacitors C1 and C2. The other ends of capacitors C1 and C2 are connected to the GND pin and the ON / OFF pin of the voltage regulator chip U1. The GND pin and the ON / OFF pin of the voltage regulator chip U1 are also connected to a diode D2, and the other end of the diode D2 is connected to the voltage protection circuit. The OUTPUT pin of the voltage regulator chip U1 is connected to inductors L2 and L3 in series. The end of inductor L3 furthest from the voltage regulator chip U1 serves as the output terminal, outputting the first voltage.

4. The improved communication module according to claim 3, characterized in that, The output terminal of the first voltage is also connected to a capacitor C4, the other end of which is grounded. A capacitor C3 is also connected between inductors L2 and L3, the other end of which is grounded.

5. The improved communication module according to claim 3, characterized in that, The OUTPUT pin of the voltage regulator chip U1 is also connected to a diode D3, and the other end of the diode D3 is grounded to prevent current from flowing back into the inductor; the FB pin of the voltage regulator chip U1 is connected between inductors L2 and L3 to detect the output voltage and make adjustments.

6. The improved communication module according to claim 3, characterized in that, The voltage protection circuit includes a switching transistor Q1 and a switching transistor Q2. The emitter of the switching transistor Q1 is connected to the input voltage. A diode D1 and a resistor R1 are connected in parallel to the emitter of the switching transistor Q1. The other end of the diode D1 and the resistor R1 are connected to and connected to a resistor R2. The other end of the resistor R2 is grounded.

7. The improved communication module according to claim 3, characterized in that, The power supply unit also includes a voltage regulator chip U2, which is used to convert the first voltage into a second voltage. The INPUT pin of the voltage regulator chip U2 is connected to the first voltage. The INPUT pin of the voltage regulator chip U2 is also connected to capacitors C5 and C6. The other ends of capacitors C5 and C6 are grounded. The OUT pin of the voltage regulator chip U2 outputs the second voltage. The OUT pin of the voltage regulator chip U2 is also connected to capacitors C7 and C8 in parallel. The other ends of capacitors C7 and C8 are grounded.

8. A server, characterized in that, Using the improved communication module as described in any one of claims 1 to 7, the server is connected to the communication module through a server interface, and the communication module is connected to the PC through a PC interface, so that data transmission can be realized between the server and the PC through the communication module.

9. The server according to claim 8, characterized in that, Both the server interface and the PC interface are connected to the main control chip U8 of the communication module. The PC interface includes a Biel diode D5 and an interface J1. The VBUS switch pin of the interface J1 is connected to the power supply BAT through a fuse F1. The DP pin of the interface J1 is controlled by the main control chip U8. The control signal of the main control chip U8 is connected to the base of the switching transistor Q6 through a resistor R31. The base of the switching transistor Q6 is also connected to resistors R29 and R30. The collector of the switching transistor Q6 is connected to a second voltage, and the emitter of the switching transistor Q6 is connected to a resistor R28. The other end of the resistor R28 is connected to the DP pin.

10. The server according to claim 9, characterized in that, When the control signal of the main control chip U8 is high, the transistor Q6 is turned on and pulls the voltage of the DP pin low, causing interface J1 to lose connection; when the control signal of the main control chip U8 is low, the transistor Q6 is turned off and pulls the voltage of the DP pin high, allowing interface J1 to connect normally.

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