CN210377148U - Electrical control loop fault point checking system based on programmable controller - Google Patents
Electrical control loop fault point checking system based on programmable controller Download PDFInfo
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- CN210377148U CN210377148U CN201921457828.4U CN201921457828U CN210377148U CN 210377148 U CN210377148 U CN 210377148U CN 201921457828 U CN201921457828 U CN 201921457828U CN 210377148 U CN210377148 U CN 210377148U
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Abstract
The utility model discloses a fault point checking system based on an electric control loop of a programmable controller, which consists of the programmable controller (1), a practical training platform (2), a communication manager (3), an operating computer (4) and an extension relay (5), wherein the programmable controller (1), the extension relay (5) and a power supply (6) are arranged on the back surface of the practical training platform (2); the communication manager (3) and the operation computer (4) are independently installed in a screen combination mode, and the programmable controller (1) and the communication manager (3) communicate by adopting an MODBUS protocol. The fault point assessment system can achieve assessment of open circuit faults and short circuit faults of the control loop, an operation interface is consistent with a schematic diagram, fault setting is visual, operation is simple, the same faults of a plurality of practical training platforms can be set at one time, different fault types and fault points can be set for different practical training platforms, setting is flexible, and time and labor are saved; the training system is used for the examination and training of various training systems.
Description
Technical Field
The utility model relates to a based on programmable controller electrical control return circuit trouble teaching examination system.
Background
At present, the existing electric practical training screens or practical training platforms are various in types, systems for electric fault examination are few, buttons and outlet relays are generally matched, the fault point examination systems and the practical training platforms adopt a one-to-one mode, and when the same fault points of the practical training platforms are set, the problems that the fault points of the practical training platforms are inconsistent and the set workload is large are easy to occur.
Disclosure of Invention
The utility model aims at providing a based on programmable controller electrical control return circuit fault point checking system, realize that the electrical control return circuit fault point of various electric real standard systems sets up the function of accomplishing teaching, examination. The technical scheme of the utility model is that: a fault point assessment system based on an electric control loop of a programmable logic controller is composed of the programmable logic controller 1, a practical training platform 2, a communication manager 3, an operating computer 4 with testing software, an extension relay 5 and a power supply 6, wherein the programmable logic controller 1, the extension relay 5 and the power supply 6 are installed on the back face of the practical training platform 2, and the communication manager 3 and the operating computer 4 with the testing software are independently installed in a screen assembling mode. The connection mode among each equipment is as follows: the first outlet to the tenth outlet of the programmable controller 1 are respectively connected with the coil of the extension relay 5 in series and then respectively connected to the output end of the power supply 6; the normally closed contact of the extension relay 5 is respectively connected with different contacts of the control loop of the practical training platform 2 in series, and other outlets of the programmable controller 1 are respectively connected with components in the control loop of the practical training platform 2 in parallel; the RS485 interface of the communication manager 3 is connected with the RS485 interface of the programmable controller 1 by adopting a shielded twisted pair, and the communication protocol adopts an MODBUS protocol; the RJ45 interface of the communication manager 3 is connected with the RJ45 interface of the operating computer 4 through a network cable, and the communication protocol adopts TCP/IP protocol communication.
The utility model discloses a theory of operation:
as shown in fig. 1, a programmable controller 1, an extension relay 5 and a power supply 6 are installed on a training platform 2, a normally closed contact of the extension relay 5 is connected in series in a control loop as shown in fig. 2, and an outlet of the programmable controller 1 is connected in parallel in the control loop; the programmable controller 1 and the communication manager 3 adopt RS485 interface MODBUS communication protocol for communication, and the communication manager 3 and the operation computer adopt RJ45 interface TCP/IP protocol for communication; during normal training, the outlet of the programmable controller 1 is in an off state, the extension relay 6 is not powered on and does not act, at the moment, the operation of a control loop, the training and other contents can be performed, during examination, the operation computer 4 and the communication management machine 3 are opened, when a fault point is set, the on/off button beside the corresponding fault point number is clicked, as shown in fig. 3, when a short-circuit fault of the fault point 2 is set, the corresponding on button needs to be clicked, at the moment, the contact is closed, when an open-circuit fault of the fault point 9 is set, the corresponding off button needs to be clicked, at the moment, the contact is opened, the setting operation of other fault points is the same, and after the fault point is set, the fault setting of all the training platforms of the fault setting button is clicked once. If different fault points are set on different training platforms, a fault setting picture corresponding to the training platform can be entered, and after the setting is finished, a fault setting button of the picture is clicked to finish the setting. After the examination is completed, only the key point needs to click the 'failure point integral reset' button to complete the exit reset of all the programmable controllers 1, so that all the failure points are reset and restored to the initial state, and the next failure point can be set.
The utility model discloses realize that the electric control circuit fault point of various electric real standard systems sets up the function of accomplishing teaching, examination.
The utility model discloses technological effect:
the utility model discloses it is exactly the function that realizes various electrical control return circuit fault settings so that teach and examine. The characteristics are as follows:
1. the fault point assessment system can set different fault points for different training platforms and the same fault point according to requirements, the fault point can be set to be a single fault, various combined faults can be set, and short-circuit faults and open-circuit faults can be selected and are very flexible.
2. A plurality of fault points which are the same with the training platform can be set at one time, the fault setting is accurate, all the fault points can be reset by one key, and time and labor are saved.
3. The fault point is set through computer software, and the operation interface is visual and simple and convenient to set.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention
FIG. 2 is a schematic diagram of a typical wiring diagram of the present invention
FIG. 3 is a partial interface of the fault point setting of the present invention
Detailed Description
As shown in fig. 1, the programmable controller-based electric control loop fault point assessment system is composed of a programmable controller 1, a practical training platform 2, a communication manager 3, an operating computer 4 with testing software, an extended relay 5 and a power supply 6, wherein the programmable controller 1, the extended relay 5 and the power supply 6 are installed on the back of the practical training platform 2, and the communication manager 3 and the operating computer 4 with the testing software are independently installed in a screen assembly mode. The connection mode among each equipment is as follows: the first outlet to the tenth outlet of the programmable controller 1 are respectively connected with the coil of the extension relay 5 in series and then respectively connected to the output end of the power supply 6; the normally closed contact of the extension relay 5 is respectively connected with different contacts of the control loop of the practical training platform 2 in series, and other outlets of the programmable controller 1 are respectively connected with components in the control loop of the practical training platform 2 in parallel; the RS485 interface of the communication manager 3 is connected with the RS485 interface of the programmable controller 1 by adopting a shielded twisted pair, and the communication protocol adopts an MODBUS protocol; the RJ45 interface of the communication manager 3 is connected with the RJ45 interface of the operating computer 4 through a network cable, and the communication protocol adopts TCP/IP protocol communication.
An assessment method of an electrical control loop fault point assessment system based on a programmable controller is as follows: during normal work, the outlet of the programmable controller 1 is normally open, the normally closed contact of the extension relay 5 is closed, the circuit of the practical training platform 2 is in a normal working state, during examination, the outlet of the programmable controller 1 is controlled through the operating computer 4 and the communication manager 3, the outlet of the programmable controller 1 is closed to simulate a short-circuit fault, the outlet of the programmable controller 1 connected with the extension relay 5 is closed, and the normally closed contact is opened to simulate an open-circuit fault after the coil of the extension relay 5 is electrified.
The specific working process is as follows: as shown in fig. 1, a programmable controller 1, an extension relay 5 and a power supply 6 are installed on a training platform 2, and a communication manager 3 and an operating computer 4 with test software are independently installed in a screen assembly mode. The RS485 interface of the communication manager 3 is connected with the RS485 interface of the programmable controller 1 by adopting a shielded twisted pair, and the communication protocol adopts an MODBUS protocol; the RJ45 interface of the communication manager 3 is connected with the RJ45 interface of the operating computer 4 through a network cable, and the communication protocol adopts TCP/IP protocol communication.
Before implementation, the number and the type of fault points and the positions of the fault points need to be planned in a schematic diagram, and after the fault points are determined, the connection mode between the devices is as follows: the first outlet to the tenth outlet of the programmable controller 1 are respectively connected with the coil of the extension relay 5 in series and then respectively connected to the output end of the power supply 6; according to a schematic diagram, as shown in fig. 2, a normally closed contact of an extended relay 5 is connected in series in a control loop to simulate an open circuit fault, and an outlet of a programmable controller 1 is connected in parallel in the control loop to simulate a short circuit fault; the programmable controller 1 and the communication manager 3 adopt RS485 interface MODBUS communication protocol for communication, and the communication manager 3 and the operation computer adopt RJ45 interface TCP/IP protocol for communication; as shown in fig. 3, during examination, when a short-circuit fault of a fault point "3" is set, a corresponding "on" button needs to be clicked, at this time, a contact is closed, when an open-circuit fault of a fault point "8" is set, a corresponding "off" button needs to be clicked, at this time, the contact is opened, the setting operation of other fault points is the same as that of the corresponding "on" button, and after the setting of the fault point is completed, the setting of faults of all the training platforms of the "fault setting" button is clicked once. If different fault points are set on different training platforms, a fault setting picture corresponding to the training platform can be entered, and after the setting is finished, a fault setting button of the picture is clicked to finish the setting. During examination, the principle diagram seen by the examined person is the principle diagram without the fault point, and the examined person needs to examine the fault point and clearly write the numbers and the corresponding terminals at the two ends of the fault point in a test paper. After the examination is completed, the "failure point integral reset" button is clicked to complete the exit reset of all the programmable controllers 1, all the failure points are reset and restored to the initial state, and the next failure point can be set.
The working principle and the embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the above embodiments; the utility model discloses can be used to the setting of the real standard platform fault point of various different grade types, open circuit trouble and short-circuit fault are optional, set up that the interface is unanimous with the schematic diagram, the fault point sets up directly perceived, easy operation.
Claims (1)
1. A fault point assessment system based on an electric control loop of a programmable controller is characterized in that: by programmable controller (1), real standard platform (2), communication supervisor (3), be equipped with test software operation computer (4), extension relay (5) and power (6) constitute, programmable controller (1), extension relay (5) and power (6) are installed at the back of real standard platform (2), communication supervisor (3) and operation computer (4) independent group screen installation that is equipped with test software, the connected mode between each equipment is: a first outlet to a tenth outlet of the programmable controller (1) are respectively connected with a coil of the extension relay (5) in series and then are respectively connected to an output end of the power supply (6); the normally closed contact of the extended relay (5) is respectively connected with different contacts of a control loop of the practical training platform (2) in series, and other outlets of the programmable controller (1) are respectively connected with components in the control loop of the practical training platform (2) in parallel; the RS485 interface of the communication manager (3) is connected with the RS485 interface of the programmable controller (1) by adopting a shielded twisted pair, and the communication protocol adopts an MODBUS protocol; the RJ45 interface of the communication manager (3) is connected with the RJ45 interface of the operating computer (4) through a network cable, and the communication protocol adopts TCP/IP protocol communication.
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| CN201921457828.4U CN210377148U (en) | 2019-09-03 | 2019-09-03 | Electrical control loop fault point checking system based on programmable controller |
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| CN201921457828.4U CN210377148U (en) | 2019-09-03 | 2019-09-03 | Electrical control loop fault point checking system based on programmable controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110543165A (en) * | 2019-09-03 | 2019-12-06 | 威立雅（哈尔滨）热电有限公司 | Electrical control loop fault point assessment system and method based on programmable controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110543165A (en) * | 2019-09-03 | 2019-12-06 | 威立雅（哈尔滨）热电有限公司 | Electrical control loop fault point assessment system and method based on programmable controller |
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