Practical training platform for PROFIBUS-DP network diagnosis training

Abstract

The utility model relates to the technical field of practical training equipment, in particular to a practical training platform for PROFIBUS-DP network diagnosis training, which comprises a practical training platform body, a PLC (Programmable Logic Controller) host arranged at the top of the practical training platform body, a power supply assembly, a remote module group, an encoder group and a display equipment main body, the PLC host, the remote module group, the encoder group and the display equipment main body are electrically connected with the power supply assembly respectively; the encoder group comprises a TR1 encoder and a TR2 encoder electrically connected to the TR1 encoder. According to the utility model, a set of communication networks of various encoders corresponding to workshop sites are established on the practical training platform body, basic common fault points are set in the PLC host through the existing program input, and after faults are detected, electrical personnel carry out learning processing by referring to common fault processing and solution posted at an OPL area. Therefore, the practical training requirements of electrical personnel on the diagnosis and fault processing of the PROFIBUS-DP communication network are met, and the operational ability and the fault processing ability of the electrical personnel are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of training equipment, in particular to a training platform used for PROFIBUS-DP network diagnosis training. Background Art

[0002] In the metallurgical industry (steel rolling), since the workshop production line is composed of multiple sets of equipment, there are a large number of detection components in each area that participate in the control of the equipment, such as displacement sensors, encoders, etc. Most of these detection components use PROFIBUS-DP for data acquisition on site. They are connected in series with each other and connected to the corresponding remote station fiber optic bus terminal module to communicate with the PLC. Since the various sensors and encoders on site are distributed at a large distance and are affected by the on-site environment, encoder communication interruptions often occur. The main faults include DP cable breakage, interference, and encoder power failure.

[0003] The current Chinese patent authorization announcement number is: CN204288673U, which discloses "a practical training and teaching device for a steel rolling mill production simulation system". The production simulation system of this patent adopts multiple control simulation processes that can demonstrate multiple work sections in parallel. Its main monitoring station can provide an overview of the operation status of each production simulation system and is also convenient for mobile demonstrations.

[0004] In summary, the authorized public training teaching devices cannot be used to meet the practical training requirements of electrical personnel for diagnosis and troubleshooting of PROFIBUS-DP communication networks, resulting in poor hands-on skills and troubleshooting capabilities of electrical personnel after taking up their posts, and they are unable to respond to fault situations in a timely manner, which can easily lead to the normal operation of workshop equipment and indirectly affect production efficiency. Utility Model Content

[0005] The utility model provides a training platform for PROFIBUS-DP network diagnosis training to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A training platform for PROFIBUS-DP network diagnosis training, comprising a training platform body, a PLC host arranged on the top of the training platform body, a power supply component, a remote module group, an encoder group and a display device body, wherein the PLC host, the remote module group, the encoder group and the display device body are electrically connected to the power supply component respectively;

[0008] The encoder group includes a TR1 encoder, a TR2 encoder electrically connected to the TR1 encoder, and a TR3 encoder electrically connected to the TR2 encoder, a disconnection fault simulation point for detecting a disconnection fault is arranged on the connection line between the TR1 encoder and the TR2 encoder, an interference source generating device for detecting an interference fault is arranged on the connection line between the TR2 encoder and the TR3 encoder, and the TR3 encoder is a power failure demonstration encoder;

[0009] The TR1 encoder, the disconnection fault simulation point, the TR2 encoder, the interference source generating device and the TR3 encoder are respectively connected to the PLC host through the remote module group.

[0010] Preferably, the power supply assembly includes a main power switch, a power switch, a TR3 encoder switch and an interference source generating device switch, the TR3 encoder switch is used to power on or off the TR3 encoder, and the interference source generating device switch is used to power on or off the interference source generating device.

[0011] Preferably, the remote module group includes an IM153-1 module, an SM321 module and a DP / DP Coupler module.

[0012] Preferably, a cable trough is provided on the top of the training platform body, and a DP cable is provided in the cable trough.

[0013] Preferably, the PLC host, remote module group, encoder group, disconnection fault simulation point and interference source generating device are connected via a DP cable.

[0014] Preferably, a cover is hingedly connected to the top of the training platform body, and an OPL area is provided on the inner wall of the cover.

[0015] Preferably, a bracket is movably connected to the top of the training platform body, and one end of the bracket is detachably hooked on the cover body.

[0016] Preferably, a support drawer is connected to the training platform body, and a placement box is slidably connected in the support drawer.

[0017] Preferably, the PLC host model is Siemens S7-300.

[0018] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0019] In the utility model, a set of various encoder communication networks corresponding to the workshop site is established on the training platform body to achieve the distribution of the physical structure, and then the basic common fault points are set in the PLC host through the existing program input, so that the disconnection fault simulation point, the interference source generation device and the power supply fault demonstration encoder are prompted to detect various fault points, and when the corresponding fault is detected, the encoder group can report an error, and the CPU status indicator light also synchronously displays the communication fault, and the communication interruption between the two encoders can be monitored on the display device body set by the program, and then the electrical personnel learn and handle the common fault handling and solutions posted in the fault reference OPL area, so as to meet the practical training requirements of the electrical personnel on the diagnosis and fault handling of the PROFIBUS-DP communication network, thereby improving the hands-on ability and fault handling ability of the electrical personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a circuit diagram of the utility model.

[0022] In the figure: 1. Training platform; 2. PLC host;

[0023] 3. Power supply assembly; 31. Main power switch; 32. Power switch; 33. TR3 encoder power switch; 34. Interference source generating device switch;

[0024] 4. Remote module group; 41. IM153-1 module; 42. SM321 module; 43. DP / DP Coupler module;

[0025] 5. Encoder group; 51. TR1 encoder; 52. TR2 encoder; 53. TR3 encoder;

[0026] 6. Display device body; 7. Disconnection fault simulation point; 8. Interference source generating device; 9. Host; 10. Cable trough; 11. DP cable; 12. Cover; 13. OPL area; 14. Bracket; 15. Placement box; 16. Regulated power supply. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0029] like Figure 1-2 As shown, the utility model provides a training platform for PROFIBUS-DP network diagnosis training, including a training platform body 1, a PLC host 2 arranged on the top of the training platform body 1, a power supply assembly 3, a remote module group 4, an encoder group 5 and a display device body 6, the display device body 6 is composed of a display and a host 9, and is used to install software and connect to the PLC. The software displays whether the encoder is online or not through the connection between the computer and the PLC host 2, and the display device body 6 is connected to the PLC host 2 through a programming cable. The PLC host 2, the remote module group 4, the encoder group 5 and the display device body 6 are electrically connected to the power supply assembly 3 respectively; the encoder group 5 includes TR1 Encoder 51, TR2 encoder 52 electrically connected to TR1 encoder 51 and TR3 encoder 53 electrically connected to TR2 encoder 52, a line break fault simulation point 7 for detecting line break fault is arranged on the connection line between TR1 encoder 51 and TR2 encoder 52, an interference source generating device 8 for detecting interference fault is arranged on the connection line between TR2 encoder 52 and TR3 encoder 53, and TR3 encoder 53 is a power supply fault demonstration encoder; TR1 encoder 51, line break fault simulation point 7, TR2 encoder 52, interference source generating device 8 and TR3 encoder 53 are respectively connected to the PLC host 2 for communication via the remote module group 4.

[0030] Specifically, the PLC host 2 is a Siemens S7-300, and the remote module group 4 includes an IM153-1 module 41, an SM321 module 42 and a DP / DP Coupler module 43. The SM321 module 42 is an I / O digital input module, and the above settings can be configured by a programming computer to configure the hardware, so that the existing input programming can meet the operation of the PLC host 2 and the remote module group 4, so that the program software can monitor the fault point and transmit the monitoring data to the display device body 6. This article only protects the physical structure. The existing programming software is well known and applied by those skilled in the art, and its specific principles are not elaborated in this article.

[0031] In this embodiment, the power supply assembly 3 includes a main power switch 31, a power switch 32, a TR3 encoder switch 33 and an interference source generating device switch 34. The TR3 encoder switch 33 is used to power on or off the TR3 encoder 53, and the interference source generating device switch 34 is used to power on or off the interference source generating device 8.

[0032] Specifically, the power supply line is as follows: AC220V alternating current is sent to the input terminal of the voltage-stabilized power supply and the interference source generating device switch 34 in the power supply component 3 through the main power switch 31 in the power supply component 3; the DC24V direct current output by the voltage-stabilized power supply is connected to the 24V power switch 32 and the TR3 encoder switch 33 in the power supply component 3; the 24V power supply supplies power to the PLC host 2, the remote module group 4, the TR1 encoder 51 and the TR2 encoder 52 through the 24V power switch 32, and the TR3 encoder 53 is powered separately by the TR3 encoder switch 33.

[0033] In this embodiment, a cable trough 10 is provided on the top of the training platform body 1, and a DP cable 11 is provided in the cable trough 10. The PLC host 2, the remote module group 4, the encoder group 5, the line break fault simulation point 7 and the interference source generating device 8 are connected through the DP cable 11.

[0034] Specifically, the circuit distribution of the training platform is as follows: DP communication cable from PLC host 2 → remote module group 4 → TR1 encoder 51 → line break fault simulation point 7 → TR2 encoder 52 → interference source generating device 8 DP cable 11 is laid in a circle on the interference source generating device 8, non-access generating device → TR3 encoder 53 power failure demonstration encoder.

[0035] In this embodiment, a cover body 12 is hinged on the top of the training bench body 1, an OPL area 13 is provided on the inner wall of the cover body 12, a bracket 14 is movably connected to the top of the training bench body 1, and one end of the bracket 14 is detachably hooked on the cover body 12. Specifically, OPL is generally referred to as a single-point course, which can post common fault handling and solutions in the DP network in the OPL area 13 to encourage electrical personnel to learn and handle according to the solution.

[0036] In this embodiment, a support drawer is connected to the training table body 1, and a placement box 15 is slidably connected in the support drawer. Specifically, the placement box 15 is used to place some electrician tools, which is convenient for taking and putting and preventing loss.

[0037] The working principle and use process of the utility model: when in use, the technicians in this field input the existing program into the PLC host 2 through the programming computer, and then the PLC host 2 can control the encoder group 5 to detect various fault points, so as to set the PLC host 2, power supply component 3, remote module group 4, encoder group 5 and display device body 6 on the training platform body 1, so that after multiple devices are connected, a set of various encoder communication networks corresponding to the workshop site is formed, and then the basic common fault points can be set in the PLC host 2 through the existing program. Therefore, the communication network is PLC host 2 via remote module group 4→TR1 encoder 51→disconnection fault simulation point 7→TR2 encoder 52→interference source generating device 8→TR3 encoder Encoder 53 is a power supply fault demonstration encoder, which can detect various fault points, and when the corresponding fault is detected, TR1 encoder 51, TR2 encoder 52 or TR3 encoder 53 can report an error respectively, and the CPU status indicator light also synchronously displays the communication fault, and the communication interruption between the two encoders can be monitored on the display device body 6 software set in the program, and then the electrical personnel can learn and deal with the common fault handling and solutions posted in the OPL area 13 through the fault reference, so as to realize the distribution and protection of the physical structure, meet the practical training requirements of electrical personnel for the diagnosis and fault handling of the PROFIBUS-DP communication network, thereby improving the hands-on ability and fault handling ability of electrical personnel.

[0038] In the present utility model, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used in this article includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0039] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0040] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A training platform for PROFIBUS-DP network diagnosis training, characterized in that: The training platform comprises a training platform body (1), a PLC host (2) arranged on the top of the training platform body (1), a power supply assembly (3), a remote module group (4), an encoder group (5) and a display device body (6), wherein the PLC host (2), the remote module group (4), the encoder group (5) and the display device body (6) are electrically connected to the power supply assembly (3) respectively; The encoder group (5) comprises a TR1 encoder (51), a TR2 encoder (52) electrically connected to the TR1 encoder (51), and a TR3 encoder (53) electrically connected to the TR2 encoder (52); a disconnection fault simulation point (7) for detecting a disconnection fault is provided on a connection line between the TR1 encoder (51) and the TR2 encoder (52); an interference source generating device (8) for detecting an interference fault is provided on a connection line between the TR2 encoder (52) and the TR3 encoder (53); and the TR3 encoder (53) is a power supply fault demonstration encoder; The TR1 encoder (51), the disconnection fault simulation point (7), the TR2 encoder (52), the interference source generating device (8) and the TR3 encoder (53) are respectively connected to the PLC host (2) via the remote module group (4).

2. A training platform for PROFIBUS-DP network diagnosis training according to claim 1, characterized in that: The power supply assembly (3) comprises a main power switch (31), a power switch (32), a TR3 encoder switch (33) and an interference source generating device switch (34); the TR3 encoder switch (33) is used to supply power to or cut off power to the TR3 encoder (53); and the interference source generating device switch (34) is used to supply power to or cut off power to the interference source generating device (8).

3. A training platform for PROFIBUS-DP network diagnosis training according to claim 1, characterized in that: The remote module group (4) comprises an IM153-1 module (41), an SM321 module (42) and a DP / DP Coupler module (43).

4. A training platform for PROFIBUS-DP network diagnosis training according to claim 1, characterized in that: A cable trough (10) is provided on the top of the training platform body (1), and a DP cable (11) is provided in the cable trough (10).

5. A training platform for PROFIBUS-DP network diagnosis training according to claim 4, characterized in that: The PLC host (2), the remote module group (4), the encoder group (5), the disconnection fault simulation point (7) and the interference source generating device (8) are connected via a DP cable (11).

6. A training platform for PROFIBUS-DP network diagnosis training according to claim 1, characterized in that: A cover body (12) is hingedly connected to the top of the training platform body (1), and an OPL area (13) is provided on the inner wall of the cover body (12).

7. A training platform for PROFIBUS-DP network diagnosis training according to claim 5, characterized in that: The top of the training platform body (1) is movably connected to a bracket (14), and one end of the bracket (14) is detachably hooked on the cover body (12).

8. A training platform for PROFIBUS-DP network diagnosis training according to claim 1, characterized in that: The training platform body (1) is connected to a support drawer, and a placement box (15) is slidably connected inside the support drawer.

9. A training platform for PROFIBUS-DP network diagnosis training according to claim 1, characterized in that: The model of the PLC host (2) is Siemens S7-300.

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