CN112213985A - Touch screen monitoring method and system based on PLC - Google Patents
Touch screen monitoring method and system based on PLC Download PDFInfo
- Publication number
- CN112213985A CN112213985A CN201910624586.1A CN201910624586A CN112213985A CN 112213985 A CN112213985 A CN 112213985A CN 201910624586 A CN201910624586 A CN 201910624586A CN 112213985 A CN112213985 A CN 112213985A
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- plc
- touch screen
- field device
- parameters
- monitoring method
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
Abstract
The invention provides a touch screen monitoring method and a system based on a PLC, relating to the field of automatic control, wherein the method comprises the following steps: step 1: the PLC is initialized and then automatically connected with the touch screen; step 2: selecting a field device control mode through a touch screen, and sending an action instruction to the field device through a PLC; and step 3: the field device executes the action after receiving the action instruction and returns the action execution related parameters to the PLC; and 4, step 4: and the PLC displays the parameters through the touch screen after receiving the parameters. The invention solves the problems that misoperation is easy to occur when control operation is carried out through a touch screen in the prior art, and the time consumed for connecting the touch screen and a PLC is long.
Description
Technical Field
The invention relates to the field of mechanical automation control, in particular to a touch screen monitoring method and system based on a PLC.
Background
In the mechanical automatic control process, the automatic control of the equipment such as the gripper, the clamp, the turntable, the rolling machine and the like is generally realized by adopting a mode of combining a PLC and a touch screen.
The PLC mostly adopts AB or Siemens S7-300/1500 series products, the touch screen mostly adopts Siemens TP1200/1500 or AB products, and the touch screen is connected with equipment through Ethernet or Profinet network. In the control process, the PLC is debugged firstly, then the touch screen is connected with the PLC, and finally control parameter picture display and simple mechanical control operation are carried out in the touch screen.
In the control process, the touch screen plays a role in displaying parameter pictures, simple mechanical control operation can be performed only through the touch screen, only technicians familiar with the processing technology can operate complicated operation control, misoperation occurs easily, and the PLC is connected with the touch screen for a long time.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide a method and a system for monitoring a touch screen based on a PLC, which are used to solve the problems that, in the prior art, when a control operation is performed through a touch screen, an incorrect operation is easily caused, and the time consumed for connecting the touch screen and the PLC is long.
The invention provides a touch screen monitoring method based on a PLC (programmable logic controller), which comprises the following steps of:
step 1: the PLC is initialized and then automatically connected with the touch screen;
step 2: selecting a field device control mode through a touch screen, and sending an action instruction to the field device through a PLC;
and step 3: the field device executes the action after receiving the action instruction and returns the action execution related parameters to the PLC;
and 4, step 4: and the PLC displays the parameters through the touch screen after receiving the parameters.
Furthermore, when the PLC is connected with the touch screen, the PLC arranges the connection parameters into a form to be sent to the touch screen and connected.
Further, the control modes include a manual control mode and an automatic control mode.
Further, the manual control mode operation steps are as follows:
step 2.1: selecting field equipment to be controlled according to the prompt of the touch screen and operating according to the operation steps of the corresponding field equipment;
step 2.2: and sending field device enabling information to the field device through the PLC, and controlling the field device to execute actions through a confirmation button on the touch screen.
Further, the parameters received by the PLC include field device error reminding parameters and action execution completion reminding parameters.
Furthermore, the system comprises a field device for executing the machining action, a PLC connected with the field device for realizing action execution control and action execution parameter receiving, and a touch screen connected with the PLC for realizing action execution parameter picture display and action execution control.
Further, the field device comprises a gripper, a clamp, a turntable and a roller machine.
As described above, the touch screen monitoring method and system based on PLC of the present invention have the following beneficial effects:
1. in the invention, the enabling information is sent to the field device through the touch screen, and then the action execution of the field device is controlled through the button on the touch screen, so that the misoperation can be prevented.
2. In the invention, under the manual control mode, the field equipment to be controlled is prompted and selected through the touch screen and the operation is executed, so that the control efficiency and the operation convenience are effectively improved.
3. In the invention, when the PLC is connected with the touch screen, the connection parameters are sent and connected in a table form, so that the time consumption for connecting the PLC with the touch screen is less, and the efficiency is higher.
Drawings
Fig. 1 is a schematic diagram of system connections disclosed in an embodiment of the present invention.
Fig. 2 is a flow chart of a monitoring method disclosed in the embodiment of the invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
As shown in fig. 1, the present invention provides a PLC-based touch screen monitoring method and system, where the system includes a field device for executing a machining operation, a PLC connected to the field device for implementing operation execution control and operation execution parameter reception, and a touch screen connected to the PLC for implementing operation execution parameter screen display and operation execution control.
The field device comprises a gripper, a clamp, a rotary table and a rolling machine.
As shown in fig. 2, the method comprises the steps of:
step 1: the PLC is initialized and then automatically connected with the touch screen;
after the system is powered on, the PLC performs initialization processing such as self diagnosis; when the PLC is connected with the touch screen, the connection parameters are sent and connected in a table form, so that the time consumption for connecting the PLC with the touch screen is less, and the efficiency is higher.
Step 2: selecting a field device control mode through a touch screen, and sending an action instruction to the field device through a PLC;
when the control mode is switched to the manual control mode through the touch screen, the touch screen prompts operation control steps of selecting field equipment to be controlled and corresponding field equipment; before the field device executes the action, enabling information needs to be sent to the field device through the touch screen, and then action execution instruction information is sent to the field device through a button on the touch screen; when the control mode is switched to the automatic control mode through the touch screen, the PLC automatically controls the field device to execute actions.
And step 3: the field device executes the action after receiving the action instruction information and returns the action execution related parameters to the PLC;
and 4, step 4: and the PLC displays the parameters through the touch screen after receiving the parameters.
The parameters received by the PLC comprise field device error reminding parameters and device action execution completion reminding parameters, and when the error parameters are received, the touch screen gives an alarm for reminding.
In the scheme, the PLC is used as the core of the whole system, processes various signal parameters sent by the field device and controls the field device to execute actions according to a preset operation program, the touch screen monitors the action state of the field device and operates the field device according to prompt information, when the field device is operated and controlled through the touch screen, an enabling signal is sent to the field device through the touch screen, then the field device is made to act through a determined button, and misoperation is prevented.
In conclusion, the invention benefits from the fact that when the touch screen is connected with the PLC, variable connection can be rapidly carried out, and the touch screen can display the current state of the system and alarm of equipment, and can also be used for carrying out complex field equipment operation control; and the error operation is reduced by using the enabling signal and the on-site confirmation button; by adding the prompt during the operation, the problem that the operation is troubled easily by non-professionals of complex equipment during the original operation is solved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A touch screen monitoring method based on PLC is characterized by comprising the following steps:
step 1: the PLC is initialized and then automatically connected with the touch screen;
step 2: selecting a field device control mode through a touch screen, and sending an action instruction to the field device through a PLC;
and step 3: the field device executes the action after receiving the action instruction and returns the action execution related parameters to the PLC;
and 4, step 4: and the PLC displays the parameters through the touch screen after receiving the parameters.
2. The PLC-based touch screen monitoring method according to claim 1, wherein when the PLC is connected with the touch screen, the PLC arranges the connection parameters into a table form and sends the table form to the touch screen for connection.
3. The PLC-based touch screen monitoring method of claim 1, wherein the control mode includes a manual control mode and an automatic control mode.
4. The PLC-based touch screen monitoring method of claim 3, wherein the manual control mode operation steps are as follows:
step 2.1: selecting field equipment to be controlled according to the prompt of the touch screen and operating according to the operation steps of the corresponding field equipment;
step 2.2: and sending field device enabling information to the field device through the PLC, and controlling the field device to execute actions through a confirmation button on the touch screen.
5. The PLC-based touch screen monitoring method of claim 1, wherein the parameters received by the PLC include field device error alert parameters and action execution completion alert parameters.
6. The utility model provides a touch-sensitive screen monitored control system based on PLC which characterized in that: the system comprises a field device used for executing machining actions, a PLC connected with the field device and used for realizing action execution control and action execution parameter receiving, and a touch screen connected with the PLC and used for realizing action execution parameter picture display and action execution control.
7. The PLC-based touch screen monitoring system of claim 6, wherein: the field device comprises a gripper, a clamp, a rotary table and a rolling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910624586.1A CN112213985A (en) | 2019-07-11 | 2019-07-11 | Touch screen monitoring method and system based on PLC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910624586.1A CN112213985A (en) | 2019-07-11 | 2019-07-11 | Touch screen monitoring method and system based on PLC |
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| CN112213985A true CN112213985A (en) | 2021-01-12 |
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| CN201910624586.1A Pending CN112213985A (en) | 2019-07-11 | 2019-07-11 | Touch screen monitoring method and system based on PLC |
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|---|---|---|---|---|
| CN101446817A (en) * | 2008-12-29 | 2009-06-03 | 重庆大学 | Control system based on PLC for picking, placing, loading and transporting in powder metallurgy production line |
| CN102902230A (en) * | 2012-10-29 | 2013-01-30 | 山东大学 | Automatic control system used in defoaming device |
| CN204249035U (en) * | 2014-11-13 | 2015-04-08 | 镇江中福马机械有限公司 | Based on the chipper control system of PLC and touch-screen |
| CN104561417A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Automatic control system for bell-less burden distribution experiments of blast furnace |
| CN204545694U (en) * | 2015-04-19 | 2015-08-12 | 太原太航科技有限公司 | Based on the flat cable ultrasonic wave automatic welding table of PLC |
| CN104991506A (en) * | 2015-05-27 | 2015-10-21 | 苏州神运机器人有限公司 | Production line setting system and setting method based on PLC and touch screen control |
-
2019
- 2019-07-11 CN CN201910624586.1A patent/CN112213985A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446817A (en) * | 2008-12-29 | 2009-06-03 | 重庆大学 | Control system based on PLC for picking, placing, loading and transporting in powder metallurgy production line |
| CN102902230A (en) * | 2012-10-29 | 2013-01-30 | 山东大学 | Automatic control system used in defoaming device |
| CN104561417A (en) * | 2013-10-23 | 2015-04-29 | 江苏省沙钢钢铁研究院有限公司 | Automatic control system for bell-less burden distribution experiments of blast furnace |
| CN204249035U (en) * | 2014-11-13 | 2015-04-08 | 镇江中福马机械有限公司 | Based on the chipper control system of PLC and touch-screen |
| CN204545694U (en) * | 2015-04-19 | 2015-08-12 | 太原太航科技有限公司 | Based on the flat cable ultrasonic wave automatic welding table of PLC |
| CN104991506A (en) * | 2015-05-27 | 2015-10-21 | 苏州神运机器人有限公司 | Production line setting system and setting method based on PLC and touch screen control |
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