TWI701559B - Hot plug interface assembly for programmable logic controller - Google Patents

Abstract

A hot plug interface assembly for programmable logic controller is provided. It comprises an assembly frame, a main control casing, a main control circuit board assembly, a circuit breaker module, a first rectification module, a second rectification module and a signal output module. The main control casing of the present invention packages the modularized programmable logic controller and resets the output and input lines, re-modulates the programmable logic controller with other components, and uses the assembly frame to install all components into a server cabinet. In this way, it can solve the problem of line chaos that occurs during maintenance. At the same time, the components can be hot swapped and replaced, and the monitoring of the running equipment does not break for a short period of time.

Description

Programmable logic controller hot-swappable interface assembly

The invention relates to a hot-swappable interface assembly, in particular to a hot-swappable interface assembly that can be used in a programmable logic controller.

A Programmable Logic Controller (PLC) is an electronic device containing a microprocessor, which is usually used in industrial automation control and can load operating instructions into the memory at any time for storage and execution. The hardware architecture of the programmable logic controller is similar to a general computer mainframe, which is mainly composed of a central processing unit (CPU) unit (including data memory), an input and output unit, a power supply unit, and a digital analog unit. Programmable logic controllers can receive and send various types of electrical or electronic signals to control or supervise almost all types of mechanical and electrical equipment.

Since the structure of the programmable logic controller is designed according to the equipment it controls, the degree of customization is quite high. In practice, the programmable logic controller and its connection lines are set according to the layout of the equipment (such as the installation location of the machine in the factory). Once these devices are changed, whether it is removed or updated, the programmable logic controller has to re-adjust its function (modify the control program) and adjust the wiring setup, or even replace the programmable logic controller. Very inconvenient.

Therefore, many manufacturers of programmable logic controllers "modularize" their products in order to more effectively meet the needs of a large number of customizations. Like stacked building blocks, programmable logic control The essential parts of the controller, such as the central processing unit, input/output unit, power supply unit, etc., can be modularized and independently produced, and then connected in series with each manufacturer's specific signal connection specifications. The final product is the customer's needs. s solution. The advantage of this approach is that the product design is simplified, the modules can be mass-produced, and the modules can be adjusted to deal with emergencies. However, because there are too many manufacturers, there is no industry standard to rely on; once the manufacturer closes or the client replaces the supplier, the existing programmable logic controller and its output and input lines are likely to fall into the dilemma of unmanned maintenance.

On the other hand, if the existing modular programmable logic controller architecture requires component replacement, because the component cannot be hot-plugged, it must be shut down first, and there will be a short window of time in the monitoring of running equipment. In addition, because there is no unified standard for the signal connection of the existing programmable logic controller architecture, the wiring is generally exposed for cheap maintenance. Although it is convenient to plug, it is extremely easy to confuse. If you can unify the installation interface like a server cabinet and centralize the installation and storage, the circuit problem can be solved, but there is no programmable logic controller product with this approach.

Therefore, the present invention provides a hot-swappable interface assembly that can be used in a programmable logic controller to solve the above-mentioned problems.

This paragraph of text extracts and compiles certain features of the present invention, and other features will be disclosed in subsequent paragraphs. Its purpose is to cover the spirit and scope of the additional patent application, various modifications and similar arrangements.

In order to solve the above-mentioned problems, the present invention provides a programmable logic controller hot-swappable interface assembly, which includes: an assembly frame formed by four parallel main beams and two side plates at both ends of the main beam. A plurality of sliding grooves parallel to each other are detachably installed between the two main beams and between the two main beams below; The main control cabinet is used to securely house a programmable logic controller. The aforementioned programmable logic controller includes at least a central processing unit, a plurality of programmable logic controller input terminals, and a plurality of programmable logic controllers. The main control cabinet includes at least one adapter board for outputting all or part of the output signals from the programmable logic controller output terminals in a first internal terminal set, and A working power is provided to the power unit through part of the internal output terminals of the first internal terminal group to operate the programmable logic controller; a main control circuit board assembly, fixed between the two side boards, includes: a circuit The board is used to provide signal and power connections between the components mounted on it; an external power transmission connector is mounted on the circuit board to receive external power; at least two second internal terminal sets are mounted on the circuit The board can be pluggably combined with the at least one first internal terminal set to transmit signals from the at least one first internal terminal set and output working power; at least one third internal terminal set is mounted on the circuit board , Used to output all or part of the signals from the at least two second internal terminal groups; and an internal power transmission module, mounted on the circuit board, including a plurality of internal power transmission connectors, one of which is the first internal power The transmission connector and the external power transmission connector are electrically connected through the circuit board; a circuit breaker module is pluggably combined with at least three internal power transmission connectors including the first internal power transmission connector, Used to connect and disconnect the loops flowing therethrough; at least one rectifier module, through at least two fourth internal power transmission connectors to rectify the external power from the circuit breaker module to provide the aforementioned working power; and a The signal output module includes: a fourth internal terminal group, which can be pluggably combined with the third internal terminal group; and a signal output interface, including a plurality of external output terminals, used to connect the third internal terminal The signal of the group is transmitted to the outside through the signal lines connected to the external output terminals. Wherein, the main control cabinet, the circuit breaker module, the at least one rectifier module and the signal output module are respectively detachably installed in the assembly frame through at least two sliding grooves.

According to the present invention, the main control cabinet may further include: a plurality of cabinet side panels, wherein at least two of the cabinet side panels are provided with at least one slide rail to the outside, and each slide rail can be installed in a corresponding slide groove to The main control cabinet is detachably installed in the assembling rack; and a front panel has an opening that can be A plurality of external signal lines are passed through, and the corresponding signal input terminals of the programmable logic controller input terminals are electrically connected.

According to the present invention, the adapter board may include: a signal line conversion terminal group having a plurality of signal line conversion terminals, wherein each signal line conversion terminal is electrically connected to an internal output terminal; the first internal terminal group; and A switching circuit board for electrically connecting each signal line conversion terminal with a specific internal output terminal on the first internal terminal group.

Preferably, the circuit breaker module, the at least one rectifier module, and the signal output module are respectively provided with at least one slide rail on the upper side and the lower side of the circuit breaker module, the at least one slide rail is installed on the corresponding slide groove, and then detachably installed In the assembly frame.

According to the present invention, the circuit breaker module may further include: a main control circuit breaker, which is pluggably combined with the first internal power transmission connector and a second internal power transmission connector to connect and disconnect the current At least one sub-circuit breaker is pluggably combined with the third internal power transmission connector, and then combined with the positive circuit of the main control circuit breaker through the motherboard to connect and disconnect the flow through it The positive circuit; and an electronic circuit breaker, electrically connected to at least one rectifier module through the fourth internal power transmission connector, to control the programmable logic controller and the signal output module's working power supply.

Preferably, the assembly rack is detachably installed in the server chassis. The assembly rack may further include at least one handle, which can be held by a user with at least one hand, thereby facilitating the assembly rack to be installed into or removed from the server rack.

In one embodiment, the programmable logic controller hot-swappable interface assembly may further include another main control cabinet, wherein the number of the second internal terminal groups of the main control circuit board assembly is at least three.

In another embodiment, the programmable logic controller hot-swappable interface assembly may further include another signal output module, wherein the number of the third internal terminal group of the main control circuit board assembly is at least two.

Preferably, the first internal terminal group is a DIN 41612 type D male terminal group or female terminal group.

The main control cabinet of the present invention packs the modular programmable logic controller and resets the output and input lines, uses other components to re-modulate the programmable logic controller, and can use the assembly rack to All components are installed in the server cabinet. In this way, the output and input interfaces of the programmable logic controller can be unified and fixed in one place, avoiding confusion during maintenance. At the same time, the design of the main control cabinet can accommodate most of the existing programmable logic controllers. Through a unified input and output interface, it becomes easy to update or replace the programmable logic controller, and will not be restricted by the supplier. Service troubles. Most importantly, some of these components can have redundant/backup units, which allows the components to be hot-swappable and replaceable, and there will be no short-term idle window periods in the monitoring of running equipment.

1: Programmable logic controller hot-swappable interface assembly

10: Assemble the rack

101: main beam

102: main beam

103: main beam

104: main beam

105: side panel

106: side panel

107: Chute

108: Fixture

109: Stuck Point

110: Handle

20: Main control cabinet

21: Programmable logic controller

211: programmable logic controller input terminal

212: programmable logic controller output terminal

213: Power Unit

22: adapter board

221: Signal line conversion terminal group

2211: signal line conversion terminal

222: The first internal terminal group

2221: Internal output terminal

223: transfer circuit board

23: Chassis side panel

231: Slide

24: front panel

241: Opening

30: Main control circuit board assembly

301: circuit board

302: External power transmission connector

303: The second internal terminal group

304: The third internal terminal group

305: Internal power transmission module

3051: First internal power transmission connector

3052: Second internal power transmission connector

3053: Third internal power transmission connector

3054: Fourth internal power transmission connector

306: Fifth internal terminal group

40: Circuit Breaker Module

41: Main control circuit breaker

42: Sub Circuit Breaker

43: electronic circuit breaker

51: The first rectifier module

52: The second rectifier module

60: Signal output module

601: The fourth internal terminal group

602: signal output interface

6022: External output terminal

70: Network communication module

Fig. 1 is an external view of a programmable logic controller hot-swappable interface assembly 1 according to an embodiment of the present invention; Fig. 2 shows the detailed design of the assembled rack; Fig. 3 shows the main control cabinet and its A programmable logic controller included inside; Figure 4 shows the detailed design of an adapter board; Figure 5 shows the programmable logic controller hot-swappable interface assembly without the assembly rack; and Figure 6 shows The back of the main control circuit board assembly.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings.

Please refer to FIG. 1, which is an external view of a programmable logic controller hot-swappable interface assembly 1 according to an embodiment of the present invention. The programmable logic controller hot-swappable interface assembly 1 pack Contains an assembly frame 10, a main control cabinet 20, a main control circuit board assembly 30, a circuit breaker module 40, a first rectification module 51, a second rectification module 52, and a signal Output module 60. The functions, configurations and interactive operation methods of these components are introduced below.

The assembly rack 10 is similar to the chassis of each layer of a rack server. The former is used to integrate the other elements of the programmable logic controller hot-swappable interface assembly 1 into it, so that the programmable logic controller hot-swappable interface assembly with different functions can be integrated like a rack server. 1Layered layout, or use different layers to place different components of the same programmable logic controller hot-swappable interface assembly 1 and detachably install them in the server chassis (not shown). For the detailed design of the assembly frame 10, please refer to FIG. 2. The assembly frame 10 is formed by a fixed combination of four parallel main beams 101, 102, 103, 104 and two side plates 105 and 106 at both ends of each main beam 101, 102, 103, 104. Several sliding grooves 107 parallel to each other are detachably installed between the upper two main beams 101 and 102, and between the lower two main beams 103 and 104. The chute 107 is a tool used to temporarily fix and assemble other components inside the frame 10. According to the present invention, every chute 107 installed between the upper two main beams 101 and 102 must have one installed on the lower two main beams 103 The chute 107 between 104 and 104 corresponds to it in the vertical direction. That is to say, the aforementioned two sliding grooves 107 are marked in FIG. 2, the lower one is located at the vertical projection position of the upper one, and the two are substantially parallel. The reason why the chute 107 is detachably installed is that the clamps 108 at its two ends are used to temporarily clamp more than one clamping point 109 of the upper two main beams 101 and 102 (or the lower two main beams 103 and 104). In terms of materials, the main beams 101, 102, 103, 104, the side plates 105 and 106, and the sliding groove 107 should be made of materials that facilitate heat dissipation, are light and hard. For example, it may be various industrial metals or their alloys, preferably aluminum alloy. In addition to metal or alloy, the clamp 108 on the chute 107 can also be made of plastic so as to take advantage of the greater elasticity of the plastic. In addition, the assembling rack 10 further includes at least one handle 110 for the user to hold with at least one hand, thereby facilitating the assembling rack 10 to be installed in or removed from the server rack. In this embodiment, there are two handles 110, which can be held and operated by the user's hands.

The main control cabinet 20 is used to fix and house a programmable logic controller. Please refer to FIG. 3, which shows the main control cabinet 20 and a programmable logic controller 21 contained therein. Although the programmable logic controllers may come from different manufacturers with different models and appearances, an innovative method of the present invention is to use the main control cabinet 20 to cover different programmable logic controllers, and Properly arrange its output and input signal lines so that the programmable logic controller can be modularized again (modularize the programmable logic controller that has been modularized), and give the programmable logic controller hot-pluggable Pull and easy maintenance function. Therefore, the aforementioned programmable logic controller 21 should at least include a central processing unit (wrapped in the programmable logic controller 21, not shown), several programmable logic controller input terminals 211, and A programmable logic controller output terminal 212 and a power unit 213. The power unit 213 is a terminal (group) used by the programmable logic controller 21 to receive working power. The programmable logic controller input terminal 211 is detachably connected to the external signal line of the programmable logic controller 21, and the programmable logic controller output terminal 212 is compatible with the signal output line of the programmable logic controller 21. Detachable ground connection. In terms of design, in addition to the appearance of each programmable logic controller 21, the number of external signal lines, signal output lines, and connection terminals are also different.

The main control cabinet 20 includes at least one adapter board 22 (two adapter boards 201 are used in this embodiment). For the detailed design of the adapter plate 22, please refer to Figure 4. The transfer board 22 includes a signal line conversion terminal set 221, a first internal terminal set 222, and a transfer circuit board 223. The signal line conversion terminal group 221 has a plurality of signal line conversion terminals 2211, and each signal line conversion terminal 2211 is electrically connected to an internal output terminal 2221 on the first internal terminal group 222 through the switching circuit board 223. Therefore, the circuit design of the switching circuit board 223 is to satisfy that each signal line conversion terminal 2211 is electrically connected to the specific internal output terminal 2221 on the first internal terminal group 222, and there is no limitation on the industrial standard. Therefore, the adapter board 22 can output all or part of the output signals from the programmable logic controller output terminals 212 through the first internal terminal group 222. Here, if a first internal terminal group 222 is used, it means that the output lines of the programmable logic controller 21 are less than the number of terminals in the first internal terminal group 222, and all output signals rely on one rotation. The connecting board 22 can handle it. In contrast, if more than one first internal terminal group 222 is used, such as two, it means that the output lines of the programmable logic controller 21 are more than the number of terminals of the first internal terminal group 222, and one adapter board 22 cannot handle that many The signal can only process part of the output signal. In addition, the adapter board 22 can also provide working power to the power unit 213 through some of the internal output terminals 2221 of the first internal terminal group 222 to operate the programmable logic controller 21. In practice, the first internal terminal set 222 can use DIN 41612 type D male terminal set or female terminal set.

In addition, the main control cabinet 20 also includes several cabinet side panels 23. In this embodiment, the number of cabinet side plates 23 is four (ie, upper cabinet side plate, lower cabinet side plate, left cabinet side plate and right cabinet side plate). In other embodiments, the number of cabinet side panels 23 can also be 3 (ie, lower cabinet side panel, left cabinet side panel, and right cabinet side panel), or even two (ie upper cabinet side panel and lower cabinet side panel). ). Wherein, at least one sliding rail 231 is provided on the side panels 23 of the at least two casings to the outside, and each sliding rail 231 can be installed in a corresponding sliding slot 107 to detachably install the main control casing 20 in the assembly rack 10 in. A front plate 24 of the main control cabinet 20 has an opening 241. The opening 241 allows several external signal lines to pass through, and is further electrically connected to the corresponding signal input terminals of the programmable logic controller input terminals 211. In terms of material, the side panel 23, the sliding rail 231 and the front panel 24 of the main control cabinet 20 can also be made of various industrial metals or their alloys, and aluminum alloy is preferred.

The main control circuit board assembly 30 is fixed between the two side plates 105 and 106 and includes: a circuit board 301, an external power transmission connector 302, three second internal terminal groups 303, a third internal terminal group 304, and a Internal power transmission module 305. In order to have a further understanding of the structure and description of the main control circuit board assembly 30, please refer to Figs. 5 and 6. 5 shows the programmable logic controller hot-swappable interface assembly 1 with the assembly rack 10 removed, and FIG. 6 shows the back of the main control circuit board assembly 30, which includes the external power transmission connector 302. The circuit board 301 is used to provide signal and power connections between the components mounted on it, and has front and rear sides. On the rear side of the circuit board 301, an external power transmission connector 302 is installed, which can be used to receive external power. Depending on the design of the programmable logic controller, the external power can be AC power from the power base or DC power from the transformer. The shape of the external power transmission connector 302 remains unchanged, as long as it can meet Design requirements are sufficient, such as using WAGO's model 770-213 connector. It can be seen from FIG. 5 that the three second internal terminal groups 303 are mounted on the circuit board 301, two of which can be pluggably combined with the two first internal terminal groups 222 to transmit from the two first internal terminals. The signal of the terminal group 222 and output working power to the two first internal terminal groups 222. The other second internal terminal group 303 is used to pluggably connect to a first internal terminal group 222 in the circuit breaker module 40. This will be stated in the manual content later. Since the first internal terminal group 222 may be a DIN 41612 type D male terminal group or a female terminal group, the second internal terminal group 303 may be a corresponding DIN 41612 type D female terminal group or a male terminal group. Therefore, the number of the second internal terminal group 303 in the implementation is at least two (connecting an adapter board 22 with the first internal terminal group 222 on the circuit breaker module 40), and the number can be increased according to actual needs. The third internal terminal group 304 is installed on the circuit board 301 to output all or part of the signals from the second internal terminal groups 303 to the signal output module 60. According to the present invention, the number of the third internal terminal group 304 is at least one. If more than two third internal terminal groups 304 are used, it means that the number of output signals is greater than the number of terminals of the third internal terminal group 304, and therefore more than two third internal terminal groups 304 are required to complete signal output. The internal power transmission module 305 is mounted on the circuit board 301, contained in an elliptical dashed frame, and includes a number of internal power transmission connectors. In this embodiment, a first internal power transmission connector 3051 and an external power transmission connector 303 are electrically connected through the circuit board 301 to transmit external power to the connected components. The internal power transmission connector can be used, but it is not limited to WAGO’s model 770-213, 750-455/040-000, 750-1405/040-000 and 750-1515/040-000 connectors, depending on the number of transmission signals select.

The circuit breaker module 40 is pluggably combined with at least three internal power transmission connectors including the first internal power transmission connector 3051 to connect and disconnect the circuits flowing therethrough. In this embodiment, the circuit breaker module 40 further includes: a main control circuit breaker 41, two sub-breakers 42 and an electronic circuit breaker 43. The main control circuit breaker 41 is pluggably combined with a first internal power transmission connector 3051 and a second internal power transmission connector 3052 to connect (on) and disconnect (off) the loops flowing therethrough. In other words, if the main control circuit breaker 41 is connected to the circuit, the external power will be connected by the internal power transmission The device 3051 flows to the second internal power transmission connector 3052. The two sub-breakers 42 are respectively pluggably combined with the two third internal power transmission connectors 3053, and then are combined with the positive circuit of the main control circuit breaker 41 through the main board 301 , Used to connect and disconnect the positive circuit flowing through it. The combination of a main control circuit breaker 41 and two sub-breakers 42 is like a programmable logic controller hot-swappable interface assembly 1 as a main power supply connected to two sub-power supplies, which can switch the system or Switch different items selectively. Of course, in practice, the number of sub-breakers 42 can also be one or more than two, which is set according to actual needs. The electronic circuit breaker 43 can be electrically connected to the circuit board 301 and at least one rectifier module through the fourth internal power transmission connector 3054. Because the electronic circuit breaker 43 can switch many current loops at the same time, it is used to control the power supply of the programmable logic controller 21 and the signal output module 60.

In this embodiment, each of the first rectification module 51 and the second rectification module 52 can connect two fourth internal power transmission connectors 3054 to rectify the external power from the circuit breaker module 40, and then The aforementioned working power is provided to components that require working power, such as the sub-breaker 42, the programmable logic controller 21, and the signal output module 60. The number of rectifier modules can be set to match the number of sub-breakers, that is, one rectifier module adjusts the power from one sub-breaker. Therefore, the number of rectifier modules may also be at least one. It should be noted that each rectifier module needs to receive and transmit power through two fourth internal power transmission connectors 3054, so the number of fourth internal power transmission connectors 3054 is also at least two, and each additional rectifier The module has one more fourth internal power transmission connector 3054.

The signal output module 60 is a component that re-outputs the programmable logic controller 21 to the outside, and includes a fourth internal terminal group 601 and a signal output interface 602. The fourth internal terminal group 601 can be pluggably combined with the third internal terminal group 304 to obtain all output signals. The signal output interface 602 includes a plurality of external output terminals 6022 for transmitting signals from the third internal terminal group 304 to the outside through the signal lines connected to the external output terminals 6022. So far, the programmable logic controller hot-swappable interface assembly 1 has completely covered the programmable logic controller 21, and provided related output, output and input lines, integrated in the assembly rack 10, and can be further installed In a server rack.

It is worth noting that, in addition to the aforementioned components, in this embodiment, the programmable logic controller hot-swappable interface assembly 1 may also include other original components, such as a network communication module 70. The network communication module 70 can be connected to the programmable logic controller 21 so that the operator can control the operation of the programmable logic controller 21 from a remote location. The network communication module 70 can be pluggably connected with a fifth internal terminal set 306 on the circuit board 301 to achieve the control of the programmable logic controller 21. The fifth internal terminal group 306 may be any suitable terminal group, such as but not limited to WAGO's model 231-303 connector.

Regarding the installation components, as mentioned above, the main control cabinet 20, the circuit breaker module 40, the first rectification module 51, the second rectification module 52 and the signal output module 70 can respectively pass through at least two chutes 170, It is detachably installed in the assembly frame 10. Wherein, the circuit breaker module 40, the first rectification module 51, the second rectification module 52 and the signal output module 70 can be respectively provided with at least one slide rail 231 on the upper side and the lower side thereof for mounting to the corresponding slide groove 170, and then detachably installed in the assembly rack 10.

In this embodiment, there are two rectifier modules, so it can be hot-plugged through function adjustment in a short time. For example, when the first rectifier module 51 is broken, it can be plugged in and replaced with another rectifier module in a short time, and the second rectifier module 52 can be adjusted to take over the work of the first rectifier module 51 in a short time. For the same reason, in other embodiments, the programmable logic controller hot-swappable interface assembly 1 may further include another main control cabinet, and the number of the second internal terminal groups 303 of the main control circuit board assembly 30 For at least 3. This design allows the programmable logic controller hot-swappable interface assembly 1 to include more than two programmable logic controllers, and these two programmable logic controllers can be divided into labor or backup. The system operation will not be affected during hot swap replacement. In yet another embodiment, the programmable logic controller hot-swappable interface assembly 1 may further include another signal output module, and the number of the third internal terminal group 304 of the main control circuit board assembly 30 is at least 2 pcs. In this way, the hot-swappable object becomes the signal output module.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of protection of the present invention shall be subject to those defined by the attached patent scope.

1 Programmable logic controller hot-swappable interface assembly 10 Assemble the rack 20 Main control cabinet 30 Main control circuit board assembly 40 Circuit breaker module 41 Main control circuit breaker 42 Sub-circuit breaker 43 Electronic circuit breaker 51 The first rectifier module 52 Second rectifier module 60 Signal output module 70 Network communication module

Claims (10)

A programmable logic controller hot-swappable interface assembly, including: an assembly frame, formed by a fixed combination of four parallel main beams and two side plates at both ends of the main beam, between the upper two main beams and the lower two main beams A plurality of sliding grooves parallel to each other are detachably installed; a main control cabinet is used to fix and house a programmable logic controller. The programmable logic controller includes at least a central processing unit and a plurality of programmable logic controllers. Logic controller input terminals, a plurality of programmable logic controller output terminals and a power unit, the main control cabinet includes at least one adapter board for output from the output terminals of the programmable logic controller All or part of the signal is output by a first internal terminal set, and a working power is provided to the power unit through part of the internal output terminals of the first internal terminal set to operate the programmable logic controller; a main control circuit board The assembly, fixed between the two side boards, includes: a circuit board for providing signal and power connections between the components mounted on it; an external power transmission connector mounted on the circuit board for receiving external Electricity; at least two second internal terminal groups, mounted on the circuit board, can be pluggably combined with the at least one first internal terminal group to transmit signals from the at least one first internal terminal group and output working power ; At least one third internal terminal set installed on the circuit board to output all or part of the signal from the at least two second internal terminal sets; and an internal power transmission module installed on the circuit board, including A plurality of internal power transmission connectors, wherein a first internal power transmission connector and the external power transmission connector are electrically connected through the circuit board; a circuit breaker module, and the first internal power transmission connector including the At least three internal power transmission connectors are pluggably combined to connect and disconnect the circuits flowing through them; At least one rectifier module rectifies external power from the circuit breaker module through at least two fourth internal power transmission connectors to provide the aforementioned working power; and a signal output module including: a fourth internal terminal Group, which can be pluggably combined with the third internal terminal group; and a signal output interface including a plurality of external output terminals for connecting the signal from the third internal terminal group to the external output terminals The signal line is transmitted to the outside, wherein the main control cabinet, the circuit breaker module, the at least one rectifier module, and the signal output module are detachably installed on the assembly machine through at least two chutes. Shelf. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application, wherein the main control cabinet further includes: a plurality of cabinet side panels, wherein at least two of the cabinet side panels are provided with at least one externally Slide rails, each slide rail can be installed in a corresponding slide groove, so that the main control cabinet can be detachably installed in the assembly rack; and a front panel with an opening, the opening can be A plurality of external signal lines are passed through, and the corresponding signal input terminals of the programmable logic controller input terminals are electrically connected. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application, wherein the adapter board includes: a signal line conversion terminal group with a plurality of signal line conversion terminals, each of which is a signal line The conversion terminal is electrically connected with an internal output terminal; the first internal terminal group; and a switching circuit board; for electrically connecting each signal line conversion terminal with a specific internal output terminal on the first internal terminal group. The programmable logic controller hot-swappable interface assembly as described in item 1 of the scope of patent application, wherein the circuit breaker module, the at least one rectifier module and the signal output module are respectively located on the upper side and the lower side At least one slide rail is arranged on the side to be installed in the corresponding slide groove, and then detachably installed in the assembly rack. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application, wherein the circuit breaker module further includes: a main control circuit breaker, the first internal power transmission connector and a second The two internal power transmission connectors are pluggably combined to connect and disconnect the circuits flowing through them; at least one sub-breaker is pluggably combined with the third internal power transmission connector, and then connects to the third internal power transmission connector through a motherboard. The positive circuit of the main control circuit breaker is combined to connect and disconnect the positive circuit flowing therethrough; and an electronic circuit breaker is electrically connected to at least one rectifier module through the fourth internal power transmission connector for control The programmable logic controller and the working power supply of the signal output module. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application, wherein the assembly rack is detachably installed in the server chassis. For the programmable logic controller hot-swappable interface assembly described in item 6 of the scope of patent application, the assembly rack further includes at least one handle, which can be held by the user with at least one hand, thereby facilitating the installation of the assembly rack The server rack or remove from the server rack. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application further includes another main control cabinet, wherein the number of second internal terminal groups of the main control circuit board assembly is at least Three. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application further includes another signal output module, wherein the number of the third internal terminal group of the main control circuit board assembly is at least 2 pcs. The programmable logic controller hot-swappable interface assembly described in item 1 of the scope of patent application, wherein the first internal terminal set is a DIN 41612 type D male terminal set or female terminal set.

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