CN210774587U - Vibration controller - Google Patents

Abstract

The utility model discloses a vibration controller. The sensor signal input module is connected with the logic control communication module through the high-precision analog/digital signal conversion module, the analog control signal output module is connected with the logic control communication module through the high-precision digital/analog signal conversion module, and the signal processing module is connected with the logic control communication module and is connected with external equipment through the logic control communication module; and the logic control communication module is also respectively connected with the sensor signal input module and the analog control signal output module. The utility model can be directly inserted into the slot of the computer case for use, thereby reducing the cost of the system while keeping high performance; the vibration controller has stable communication function performance.

Description

Vibration controller

Technical Field

The utility model relates to a vibration detection technical field, concretely relates to vibration controller.

Background

With the progress of society and the development of science and technology, the application of the vibration test system as the reliability and environmental adaptability of the test product is more and more extensive. The vibration controller structure serving as a control core in the vibration test system is greatly improved in long-term practical application. At present, the vibration controllers of the vibration test system have the following types: the vibration controller is formed on the basis of an existing data acquisition card and a computer. The data acquisition card of the controller is responsible for data acquisition, and the computer is responsible for digital signal processing and algorithm control, as well as the functions of parameter setting, waveform display, result storage and the like. Its advantages are simple structure, low cost and low real-time and reliability. In order to improve the real-time performance and reliability of a control system, an external vibration controller is proposed in the prior art, and a portable vibration controller adopting a USB interface is disclosed in a patent with a chinese patent publication number CN101046685A published on 10.3.2007, which comprises a dual-channel data acquisition module, a signal processing module, a data storage module, a signal output module, a logic control module and a USB communication module. The controller adopts a high-performance hardware architecture of two floating-point DSPs and a 24-bit ADC/DAC to process the vibration signal. Although the system can be independent of a PC, a controller independently completes the task of closed-loop control, the closed-loop control time is reduced, and the real-time performance of the system is enhanced, because the system uses two DSP chips, the communication between the two DSP chips and other modules occupy very large resources, and the software structure is correspondingly complicated. Meanwhile, two DSP chips increase the hardware cost. And the vibration controller adopts the design of the USB interface, so that the irrational performance exists, because the vibration controller adopts the USB interface to realize the communication with the PC, the reliability is low in an industrial field, and the vibration controller is easily interfered by the outside, so that the communication with the computer is interrupted. Therefore, the vibration controller with the function of independently completing the closed-loop control in the prior art has the disadvantages of complex structure, high manufacturing cost and unstable communication performance.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a vibration controller, structural design is reasonable, and system resource utilization is high, low in manufacturing cost.

The to-be-solved technical problem of the present invention is to provide a vibration controller with stable communication performance.

In order to solve the technical problem, the utility model adopts the following technical scheme: the vibration controller comprises a sensor signal input module, an analog control signal output module, a high-precision analog/digital signal conversion module, a high-precision digital/analog signal conversion module, a logic control communication module and a signal processing module, wherein the sensor signal input module is connected with the logic control communication module through the high-precision analog/digital signal conversion module; and the logic control communication module is also respectively connected with the sensor signal input module and the analog control signal output module.

The signal processing module comprises a DSP chip with the working frequency of more than three hundred megahertz and DDR2 used for storing running programs and data of the DSP chip.

Furthermore, the vibration controller comprises a plurality of sensor signal input modules, each sensor signal input module comprises an input interface socket, an all-in-one interface selection circuit, an AC/DC coupling selection circuit and a gain adjustment circuit, the input interface socket is connected with the AC/DC coupling selection circuit through the all-in-one interface selection circuit, the AC/DC coupling selection circuit is connected with the high-precision analog/digital signal conversion module through the gain adjustment circuit, and the all-in-one interface selection circuit and the AC/DC coupling selection circuit are connected with the logic control communication module.

Furthermore, the vibration controller comprises a plurality of sensor signal input modules, each sensor signal input module comprises an input interface socket, an all-in-one interface selection circuit, an AC/DC coupling selection circuit and a gain adjustment circuit, the input interface socket is connected with the gain adjustment circuit through the all-in-one interface selection circuit, the gain adjustment circuit is connected with the high-precision analog/digital signal conversion module through the AC/DC coupling selection circuit, and the all-in-one interface selection circuit and the AC/DC coupling selection circuit are connected with the logic control communication module.

The application range of the vibration controller is increased by adopting the all-in-one interface selection circuit and the AC/DC coupling selection circuit, so that the vibration controller can be used under the use conditions of various sensors and is convenient to use.

As a preferred aspect of the present invention, the charge sensor and the ICP sensor are suitable for being applied in a working environment with vibration characteristics, and the all-in-one interface selection circuit includes a charge sensor signal interface and an ICP sensor signal interface; in order to provide a universal interface when the system hardware is updated, the all-in-one interface selection circuit further comprises a voltage input interface.

Furthermore, the logic control communication module is provided with a PCIE bus interface, and the vibration controller is connected with the PC through the PCIE bus interface.

Real-time communication and data exchange are carried out, and compared with the original USB interface, the PCIE bus is adopted, so that the peripheral hardware structure can be simplified, and the production cost is reduced; the plug and play function can be realized, and reliable and stable connection can be ensured.

Further, the information processing module comprises a DSP controller and a DDR2 storage module, and the DSP chip is connected with the logic control communication module through a UHPI interface of the DSP chip. The mode enhances the upgradeability of system software and the expandability of functions.

Compared with the traditional PCI, PCIe adopts the point-to-point serial connection which is popular in the industry at present, and compared with the shared parallel architecture of PCI and earlier computer buses, each device has own special connection, the bandwidth does not need to be requested to the whole bus, and the data transmission rate can be improved to a very high frequency, so that the high bandwidth which cannot be provided by the PCI is achieved.

Furthermore, the logic vibration controller directly integrates the logic control module and the communication module into an FPGA (field programmable gate array), so that the system is simple and convenient in structure.

Furthermore, the analog control signal output module comprises a gain amplifying circuit, an enabling/disabling circuit and an output interface socket, the high-precision digital/analog signal conversion module is connected with the enabling/disabling circuit through the gain amplifying circuit, and the enabling/disabling circuit is connected with the output interface socket.

The gain circuit ensures the amplitude of the signal, and enables/disables the circuit to cancel pulse voltage generated by starting and stopping the vibration controller, thereby preventing damage to the controlled equipment.

Further, the all-in-one interface selection circuit includes a first switch K1, a second switch K2, a third switch K3, a fourth switch K4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, a second capacitor C2 and a first amplifier U1, the input interface socket is connected with the first switch K1, two connection ends of the first switch K1 are respectively connected with the first resistor R1 and the second switch K2, and the second switch K2, the third switch K3 and the fourth switch K4 are sequentially connected. The first resistor R1 is grounded through a first capacitor C1, one end of a first capacitor C1 is connected with the negative end of a first amplifier U1 and is connected with the output end of a first amplifier U1 through a third resistor R3 and a third capacitor C3, and the positive end of the first amplifier U1 is grounded through a fourth resistor R4; the output end of the first amplifier U1 is connected with a fourth switch K4; one end of the second switch K2 is connected with the constant current source and is grounded through a second capacitor C2 and a second resistor R2 which are connected in series, the common end of the second capacitor C2 and the second resistor R2 is connected with the third switch K3, and the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4 are all connected with the logic control communication module.

Furthermore, the AC/DC coupling selection circuit includes a fifth switch K5, a fourth capacitor C4, a fifth resistor R5 and a second amplifier U2, one end of the fifth switch K5 is connected to the positive terminal of the second amplifier U2 through the fourth capacitor C4, the other end of the fifth switch K5 is directly connected to the positive terminal of the second amplifier U2 and is grounded through the fifth resistor R5, and the negative terminal of the second amplifier U2 is connected to the output terminal.

Furthermore, the gain adjustment module comprises a tenth resistor R10, a ninth resistor R9, an eleventh resistor R11, a twelfth resistor R12 and an instrument operational amplifier U4, wherein the tenth resistor R10 is grounded through the ninth resistor R9, and the other end of the tenth resistor R10 is connected with the negative end of the instrument operational amplifier U4 and is grounded through a fifth capacitor C5; the positive end of an input signal is connected with the twelfth resistor R12 and is grounded through the eleventh resistor R11, and the other end of the twelfth resistor R12 is connected with the positive end of the instrument operational amplifier U4 and is grounded through the seventh capacitor C7; a sixth capacitor C6 is connected in series between the fifth capacitor C5 and the seventh capacitor C7, a thirteenth resistor R13 and a fourteenth resistor R14 are arranged between the RG1 and the RG2 of the operational amplifier U4 and are connected through a seventh switch K7, and the seventh switch K7 is connected with the logic control communication module.

Further, the gain amplification circuit comprises a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a third amplifier U3, the high-precision digital/analog signal conversion module is connected with the sixth resistor R6 and is connected with the negative terminal of the third amplifier U3 through a sixth resistor R6, the negative terminal of the third amplifier U3 is connected with the output terminal through an eighth resistor, and the positive terminal of the third amplifier U3 is grounded through a seventh resistor; the enabling/disabling circuit comprises a sixth switch K6, the output end of the third amplifier U3 is connected with the sixth switch K6, and the sixth switch K6 is connected with the logic control communication module.

By adopting the technical scheme, the vibration controller has a simple structure, can be directly inserted into the clamping groove of the computer case for use, and reduces the cost of the system while keeping high performance; through internal function integration, a high-performance DSP chip is used for processing information, so that software resources are saved, the working performance is improved, the hardware cost is greatly reduced, and the working efficiency of the system is improved; the communication module established by the FPGA chip has stronger anti-interference capability, so that the communication function performance of the vibration controller is stable.

Drawings

Fig. 1 is a schematic circuit diagram of a vibration controller according to the present invention;

fig. 2 is a circuit block diagram of a sensor signal input module of a vibration controller according to the present invention;

fig. 3 is a circuit block diagram of another embodiment of a sensor signal input module of a vibration controller according to the present invention;

FIG. 4 is a schematic diagram of the all-in-one interface selection circuit of the present invention;

FIG. 5 is a schematic diagram of the AC/DC coupling selection circuit of the present invention;

FIG. 6 is a schematic diagram of the gain adjustment module of the present invention;

fig. 7 is a circuit block diagram of an analog control signal output module of the vibration controller according to the present invention;

fig. 8 is a schematic diagram of the gain amplifier circuit and enable/disable circuit of the present invention;

wherein: 1-a sensor signal input module; 2-an analog control signal output module; 3-high precision analog/digital signal conversion module; 4-high precision digital/analog signal conversion module; 5-logic control communication module; 6-a signal processing module; 7-input interface socket; 8-an all-in-one interface selection circuit; 9-a gain adjustment circuit; 10-AC/DC coupling selection circuit; 11-output interface socket; 12-enable/disable circuit; 13-gain amplification circuit.

Detailed Description

The technical solution of the present invention will be further explained with reference to the drawings of the specification.

As shown in fig. 1, the vibration controller includes a sensor signal input module 1, an analog control signal output module 2, a high-precision analog/digital signal conversion module 3, a high-precision digital/analog signal conversion module 4, a logic control communication module 5, and a signal processing module 6. The sensor signal input modules 1 are two in number, as shown in fig. 2 and 3, and each sensor signal input module 1 comprises an input interface socket 7, an all-in-one interface selection circuit 8, a gain adjustment circuit 9 and an AC/DC coupling selection circuit 10. The input interface socket 7 is connected with an AC/DC coupling selection circuit 10 through an all-in-one interface selection circuit 8, and the AC/DC coupling selection circuit 10 is connected with the high-precision analog/digital signal conversion module 3 through a gain adjustment circuit 9. The all-in-one interface selection circuit 8 and the AC/DC coupling selection circuit 10 are connected with the logic control communication module 5, and the all-in-one interface comprises a charge sensor signal interface, an ICP sensor signal interface and a voltage input interface. The logic control communication module 5 adopts an FPGA chip. The sensor signal input module 1 and the analog control signal output module 2 are provided with shielding cases to reduce the interference of the outside to the vibration controller and also reduce the noise of the vibration controller to a certain extent.

The gain adjusting circuit 9 may be connected to the high-precision analog/digital signal conversion module 3 through the AC/DC coupling selection circuit 10 by using the all-in-one interface selection circuit 8 and the gain adjusting circuit 9.

As shown in fig. 4, the all-in-one interface selection circuit 8 is configured such that the sensor signal is connected to a first switch K1 through an input interface socket 7, two connection terminals of the first switch K1 are respectively connected to a first resistor R1 and a second switch K2, and the second switch K2, a third switch K3, and a fourth switch K4 are sequentially connected. The first resistor R1 is grounded through a first capacitor C1, one end of a first capacitor C1 is connected with the negative end of the first amplifier U1 and is connected with the output end of the first amplifier U1 through a third resistor R3 and a third capacitor C3, and the positive end of the first amplifier U1 is grounded through a fourth resistor R4. The output end of the first amplifier U1 is connected with a fourth switch K4. One end of the second switch K2 is connected with the constant current source and is grounded through a second capacitor C2 and a second resistor R2 which are connected in series, and the common end of the second capacitor C2 and the second resistor R2 is connected with the third switch K3. The first switch K1, the second switch K2, the third switch K3 and the fourth switch K4 are all connected with the logic control communication module 5, and the connection mode is controlled by the logic control communication module 5.

As shown in FIG. 5, the input signal of the AC/DC coupling selection circuit 10 is connected to a fifth switch K5, one end of the fifth switch is connected to the positive terminal of a second amplifier U2 through a fourth capacitor C4, the other end of the fifth switch K5 is directly connected to the positive terminal of the second amplifier U2 and is grounded through a fifth resistor R5, and the negative terminal of the second amplifier U2 is connected to the output terminal. Through the control of the fifth switch K5, whether the signals to be acquired contain direct current offset or not can be controlled, and therefore acquisition can be controlled as required. The fifth switch K5 is controlled by the logic control communication module 5.

As shown in fig. 6, the negative terminal of the input signal of the gain adjustment circuit is connected to the tenth resistor R10 and is grounded through the ninth resistor R9, and the other terminal of the tenth resistor R10 is connected to the negative terminal of the operational amplifier U4 and is grounded through the fifth capacitor C5; the positive terminal of the input signal is connected with the twelfth resistor R12 and is grounded through the eleventh resistor R11, and the other end of the twelfth resistor R12 is connected with the positive terminal of the instrument operational amplifier U4 and is grounded through the seventh capacitor C7. And a sixth capacitor C6 is connected between the fifth capacitor C5 and the seventh capacitor C7 in series. The instrument operational amplifier is provided with control input ends RG1 and RG2, a thirteenth resistor R13 and a fourteenth resistor R14 are connected between the control input ends RG1 and RG2, the connected resistors are selected through a seventh switch K7, the amplification factor of the instrument operational amplifier U4 is controlled, and the seventh switch K7 is controlled by a logic control communication module 5.

Since the high-precision analog/digital signal conversion module 3 is connected with the logic control communication module 5, the sensor signal input module 1 is finally connected with the logic control communication module 5 through the high-precision analog/digital signal conversion module 3.

The high-precision analog/digital signal conversion module 3 is provided with an A/D conversion chip with twenty-four bit precision, can accurately complete the conversion from an analog signal to a digital signal and transmit the converted signal to the logic control communication module 5, and the logic control communication module 5 is internally provided with an FPGA programmable logic chip which can complete the sending and receiving of the digital signal, the preprocessing of the digital signal and the setting of an analog channel control signal.

As shown in fig. 1, the logic control communication module 5 is connected to the signal processing module 6, and the signal processing module 6 includes a DSP chip with an operating frequency of more than three hundred mhz and a DDR2 for storing an operating program and data of the DSP chip. The DSP chip completes the control operation and digital output control of the digital signals transmitted by the FPGA programmable logic chip. Meanwhile, the all-in-one interface selection circuit and the AC/DC coupling selection circuit are connected with the logic control communication module 5, so that the DSP chip also controls the acquisition and filtering of digital signals. The signal processing module 6 performs closed-loop control of the entire vibration test.

The logic control communication module 5 is provided with a PCIE bus interface and can be directly plugged into a computer host. The DSP chip is connected with the FPGA chip through a UHPI interface of the DSP chip to realize communication and data exchange between the vibration controller and a PC, and parameter setting, target spectrum editing, signal real-time display, test process control and report generation are carried out through the PC.

The logic control communication module 5 is connected with the analog control signal output module 2 through the high-precision digital/analog signal conversion module 4. The information calculated by the signal processing module 6 is transmitted to the high-precision digital/analog signal conversion module 4 through the logic control & communication module 5, and the high-precision digital/analog signal conversion module 4 is transmitted to the actuating mechanism through the analog control signal output module 2. The high-precision digital/analog signal conversion module 4 has a D/a conversion chip with twenty-four bit precision, and completes conversion from a digital signal to an analog signal. As shown in fig. 7, the analog control signal output module 2 includes a gain amplifying circuit 13, an enable/disable circuit 12 and an output interface socket 11, the gain adjusting circuit 13 is connected to the enable/disable circuit 12, as shown in fig. 7, the enable/disable circuit 12 is connected to the output interface socket 11, and the enable/disable circuit 12 is connected to the logic control communication module 5.

As shown in fig. 8, the gain amplifying circuit 13 and the enable/disable circuit 12 are connected, the high-precision digital/analog signal conversion module output signal enters the gain amplifying circuit 13 and is connected with a sixth resistor R6, and is connected with the negative terminal of a third amplifier U3 through a sixth resistor R6, the negative terminal of the third amplifier U3 is connected with the output terminal through an eighth resistor, the positive terminal of the third amplifier U3 is grounded through a seventh resistor, the enable/disable circuit 12 includes a sixth switch K6, and the output terminal of the third amplifier U3 is connected with a sixth switch K6. The sixth switch K6 is controlled by the FPGA.

When the device works, two paths of analog signals respectively enter the vibration controller from the two sensor signal input modules 1, are selected and conditioned by the signals of the all-in-one interface selection circuit, and then are processed by the AC/DC coupling selection circuit and the gain adjustment circuit to enter the dual-channel high-precision analog/digital signal conversion module 3. The digital signal output by the high-precision analog/digital signal conversion module 3 is processed by the logic control communication module 5 and enters the signal processing module 6 to finish the sampling of the signal. During control, the signal processing module 6 sends a control signal to the logic control communication module 5, and then the control signal is subjected to digital/analog conversion through the high-precision digital/analog signal conversion module 4 and directly sent to the execution mechanism through the analog control signal output module 2.

The PCIE vibration controller can be directly inserted into a card slot of a computer case for use, resources such as a power supply, a network and a shell of the computer case are directly utilized, and the cost of the system is reduced while high performance is kept.

Claims (8)

1. A vibration controller is connected with external equipment and is characterized by comprising a sensor signal input module (1), an analog control signal output module (2), a high-precision analog/digital signal conversion module (3), a high-precision digital/analog signal conversion module (4), a logic control communication module (5) and a signal processing module (6), the sensor signal input module (1) is connected with the logic control communication module (5) through the high-precision analog/digital signal conversion module (3), the analog control signal output module (2) is connected with the logic control communication module (5) through a high-precision digital/analog signal conversion module (4), the signal processing module (6) is connected with the logic control communication module (5) and is connected with external equipment through the logic control communication module (5); the logic control communication module (5) is also respectively connected with the sensor signal input module (1) and the analog control signal output module (2); the logic control communication module (5) is an FPGA, the FPGA is provided with a PCIe bus interface, the vibration controller is connected with a PC through the PCIe bus interface, the signal processing module (6) comprises a DSP controller and a DDR2 storage module, and the DSP controller is connected with the FPGA through an UHPI interface.

2. The vibration controller according to claim 1, wherein the vibration controller comprises a plurality of sensor signal input modules (1), each sensor signal input module (1) comprises an input interface socket (7), an all-in-one interface selection circuit (8), an AC/DC coupling selection circuit (10) and a gain adjustment circuit (9), the input interface socket (7) is connected with the AC/DC coupling selection circuit (10) through the all-in-one interface selection circuit (8), the AC/DC coupling selection circuit (10) is connected with the high-precision analog/digital signal conversion module (3) through the gain adjustment circuit (9), and the all-in-one interface selection circuit (8) and the AC/DC coupling selection circuit (10) are both connected with the logic control communication module (5).

3. The vibration controller according to claim 1, wherein the vibration controller comprises a plurality of sensor signal input modules (1), each sensor signal input module (1) comprises an input interface socket (7), an all-in-one interface selection circuit (8), an AC/DC coupling selection circuit (10) and a gain adjustment circuit (9), the input interface socket (7) is connected with the gain adjustment circuit (9) through the all-in-one interface selection circuit (8), the gain adjustment circuit (9) is connected with the high-precision analog/digital signal conversion module (3) through the AC/DC coupling selection circuit (10), and the all-in-one interface selection circuit (8) and the AC/DC coupling selection circuit (10) are both connected with the logic control communication module (5).

4. A vibration controller according to claim 1, wherein the analog control signal output module (2) comprises a gain amplifying circuit (13), an enable/disable circuit (12) and an output interface socket (11), the high-precision digital/analog signal conversion module (4) is connected with the enable/disable circuit (12) through the gain amplifying circuit (13), and the enable/disable circuit (12) is connected with the output interface socket (11).

5. A vibration controller according to claim 2 or 3, characterized in that said all-in-one interface selection circuit (8) comprises a first switch K1, a second switch K2, a third switch K3, a fourth switch K4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, a second capacitor C2 and a first amplifier U1, wherein the input interface socket (7) is connected with the first switch K1, two connection terminals of the first switch K1 are respectively connected with the first resistor R1 and the second switch K2, and the second switch K2, the third switch K3 and the fourth switch K4 are sequentially connected; the first resistor R1 is grounded through a first capacitor C1, one end of a first capacitor C1 is connected with the negative end of a first amplifier U1 and is connected with the output end of a first amplifier U1 through a third resistor R3 and a third capacitor C3, and the positive end of the first amplifier U1 is grounded through a fourth resistor R4; the output end of the first amplifier U1 is connected with a fourth switch K4; one end of the second switch K2 is connected with the constant current source and is grounded through a second capacitor C2 and a second resistor R2 which are connected in series, the common end of the second capacitor C2 and the second resistor R2 is connected with a third switch K3, and the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4 are all connected with the logic control communication module (5).

6. A vibration controller as claimed in claim 2 or 3, wherein said AC/DC coupling selection circuit (10) comprises a fifth switch K5, a fourth capacitor C4, a fifth resistor R5 and a second amplifier U2, one end of the fifth switch K5 is connected to the positive terminal of the second amplifier U2 through the fourth capacitor C4, the other end of the fifth switch K5 is directly connected to the positive terminal of the second amplifier U2 and to ground through the fifth resistor R5, and the negative terminal of the second amplifier U2 is connected to the output terminal.

7. A vibration controller as claimed in claim 2 or 3, wherein the gain adjustment module comprises a tenth resistor R10, a ninth resistor R9, an eleventh resistor R11, a twelfth resistor R12, and an operational amplifier U4, the tenth resistor R10 is grounded through the ninth resistor R9, and the other end of the tenth resistor R10 is connected to the negative terminal of the operational amplifier U4 and grounded through a fifth capacitor C5; the positive end of an input signal is connected with the twelfth resistor R12 and is grounded through the eleventh resistor R11, and the other end of the twelfth resistor R12 is connected with the positive end of the instrument operational amplifier U4 and is grounded through the seventh capacitor C7; a sixth capacitor C6 is connected in series between the fifth capacitor C5 and the seventh capacitor C7, a thirteenth resistor R13 and a fourteenth resistor R14 are arranged between the RG1 and the RG2 of the operational amplifier U4 and are connected through a seventh switch K7, and the seventh switch K7 is connected with a logic control communication module (5).

8. The vibration controller according to claim 4, wherein the gain amplifying circuit (13) comprises a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a third amplifier U3, the high precision digital/analog signal conversion module (4) is connected with the sixth resistor R6 and with the negative terminal of the third amplifier U3 through a sixth resistor R6, the negative terminal of the third amplifier U3 is connected with the output terminal through the eighth resistor, and the positive terminal of the third amplifier U3 is grounded through the seventh resistor; the enabling/disabling circuit (12) comprises a sixth switch K6, the output end of the third amplifier U3 is connected with the sixth switch K6, and the sixth switch K6 is connected with the logic control communication module (5).

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