Multifunctional control touchscreen for automation systems

Abstract

The utility model discloses a kind of multifunctional control touch screen for automation system, including display interactive area, analog signal input wiring area, analog signal output wiring area, digital signal input wiring area, digital signal output wiring area and power supply and communication signal wiring area.Display interactive area is man-machine interface, supports touch operation and control type selection and parameter setting;Each signal wiring area integrates multiple groups of pluggable terminal and 24VDC power output, supports 4-20mA, 0-10VDC and other analog signals and transistor type digital signal access;Power supply and communication signal wiring area provide 220VAC power input, PROFIBUS / MODBUS communication interface, RJ45 and USB interface.The utility model integrates touch screen and controller function, without independent programming, only need wiring and parameter setting can realize automation control, with system architecture simplification, technical threshold is low, cost saving, operation and maintenance efficiency higher advantage, applicable to chemical industry, power, intelligent manufacturing and other industrial fields.

Description

Technical Field

[0001] This utility model relates to the field of automation control technology, specifically a multifunctional control touch screen for automation systems. Background Technology

[0002] In the field of automation control, traditional automatic control systems typically employ a combined architecture of "ordinary touchscreen + controller (such as PLC or microcontroller)". This split control scheme requires technicians to program the touchscreen and controller independently and to achieve data interaction between the two through communication protocols to achieve the expected control logic.

[0003] However, this solution has the following significant drawbacks in practical applications:

[0004] 1. High technical threshold: It requires mastery of both touch screen configuration programming and controller logic programming, which places high demands on the professional skills of operators. In particular, the difficulty of programming and debugging increases significantly in complex control scenarios.

[0005] 2. High development costs: On the hardware side, it is necessary to purchase independent touch screens and controllers, which results in high equipment costs; on the software side, a lot of time needs to be invested in programming, debugging and testing the dual systems, which leads to extended project cycles and increased labor costs.

[0006] 3. Low operating efficiency: The split architecture involves wiring and communication configuration of multiple devices, resulting in high system integration complexity. Later maintenance requires simultaneous troubleshooting of compatibility issues between the touch screen and the controller, and fault location and repair take a long time.

[0007] Therefore, there is an urgent need in the existing technology for an integrated control device that can integrate the functions of a touch screen and a controller, in order to simplify the system architecture, lower the programming threshold, improve operating efficiency and save costs. Summary of the Invention

[0008] The technical problem to be solved by this utility model is to provide a multifunctional control touch screen for automation systems. By integrating display interaction, signal input and output and control logic functions, common control types can be realized without separate programming, which effectively solves the technical bottleneck of traditional solutions.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a multi-functional control touch screen for an automation system, including a display and interaction area on the front of the housing, analog signal input wiring area and analog signal output wiring area on both sides of the housing, digital signal input wiring area and digital signal output wiring area on the bottom of the housing, and power and communication signal wiring area on the back of the housing.

[0010] The display interaction area is a human-computer interaction interface used to select control types and set parameters;

[0011] The analog signal input wiring area includes 5 sets of analog signal input terminals and 1 set of 24VDC power output terminals.

[0012] The analog signal output wiring area includes 5 sets of analog signal output terminals and 1 set of 24VDC power output terminals.

[0013] The digital signal input wiring area includes 5 sets of digital signal input terminals and 1 set of 24VDC power output terminals.

[0014] The digital signal output wiring area includes 5 sets of digital signal output terminals and 1 set of 24VDC power output terminals;

[0015] The power and communication signal wiring area includes one set of 220VAC power input terminals, one set of PROFIBUS and MODBUS communication interfaces, one set of RJ45 interfaces, and one set of USB interfaces.

[0016] In a preferred embodiment, the signal type of the analog signal input wiring area is one of 4-20mA, 0-20mA, and 0-10VDC.

[0017] In a preferred embodiment, the analog signal output wiring area is a 4-20mA signal output type.

[0018] In a preferred embodiment, both the digital signal input wiring area and the digital signal output wiring area are transistor type, and the terminals are pluggable.

[0019] In a preferred embodiment, the display interaction area is a touch-sensitive operation panel, and the control types include proportional control, PID control, split-range control, and cascade control.

[0020] In a preferred embodiment, the terminals of the analog signal input wiring area, analog signal output wiring area, digital signal input wiring area, and digital signal output wiring area are all pluggable.

[0021] In a preferred embodiment, the communication interface of the power supply and communication signal wiring area supports PROFIBUS, MODBUS protocols and Ethernet communication, and data communication is achieved by connecting a 485 or Ethernet communication cable.

[0022] The multifunctional control touch screen for automation systems provided by this utility model, by adopting the above-described structure, has the following beneficial effects:

[0023] (1) The independent touch screen and controller functions in the traditional solution are integrated into a single device without the need for additional PLC or microcontroller configuration. This reduces the number of hardware components and control cabinet space, and allows direct connection to field equipment through built-in signal input / output wiring area, eliminating the need for communication cable connection between the touch screen and controller. This significantly simplifies the system architecture and reduces hardware complexity and integration difficulty.

[0024] (2) It greatly reduces the technical threshold and programming workload. Users do not need to master professional touch screen configuration and controller programming skills. They can quickly activate the corresponding control logic by simply selecting the preset control type such as proportional control and PID control and setting the parameters in the display interaction area. With the hardware configuration flexibility of pluggable terminals, it realizes the convenient operation of "select and use", greatly shortens the debugging time and reduces the dependence on technical personnel.

[0025] (3) The equipment has significant advantages in cost optimization and compatibility. Its integrated design eliminates the procurement costs of independent controllers and communication modules, effectively reducing hardware investment. At the same time, the power supply and communication signal wiring area supports PROFIBUS, MODBUS protocols and Ethernet communication, adapting to various industrial buses and host computer systems. It can not only meet the docking requirements of different automation network architectures, but also simplify the troubleshooting process and improve operation and maintenance efficiency through a single equipment architecture. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a front view structural diagram of the present invention.

[0028] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0029] Figure 3 This is a schematic diagram of the left-side structure of this utility model.

[0030] Figure 4 This is a schematic diagram of the rear view structure of this utility model.

[0031] Figure 5 This is a bottom view of the structure of this utility model.

[0032] The diagram shows: interactive area 1, analog signal input wiring area 2, analog signal output wiring area 3, digital signal input wiring area 4, digital signal output wiring area 5, and power and communication signal wiring area 6. Detailed Implementation

[0033] like Figure 1-5Among them, a multi-functional control touch screen for an automation system includes a display interaction area 1 on the front of the housing, analog signal input wiring area 2 and analog signal output wiring area 3 on both sides of the housing, digital signal input wiring area 4 and digital signal output wiring area 5 on the bottom of the housing, and power and communication signal wiring area 6 on the back of the housing.

[0034] The display interaction area 1 is a human-computer interaction interface used to select control type and set parameters;

[0035] The analog signal input wiring area 2 includes 5 sets of analog signal input terminals and 1 set of 24VDC power output terminals;

[0036] The analog signal output wiring area 3 includes 5 sets of analog signal output terminals and 1 set of 24VDC power output terminals.

[0037] The digital signal input wiring area 4 includes 5 sets of digital signal input terminals and 1 set of 24VDC power output terminals;

[0038] The digital signal output wiring area 5 includes 5 sets of digital signal output terminals and 1 set of 24VDC power output terminals.

[0039] The power and communication signal wiring area 6 includes a set of 220VAC power input terminals, a set of PROFIBUS and MODBUS communication interfaces, a set of RJ45 interfaces, and a set of USB interfaces.

[0040] In a preferred embodiment, the signal type of the analog signal input wiring area 2 is one of 4-20mA, 0-20mA, and 0-10VDC.

[0041] In a preferred embodiment, the analog signal output wiring area 3 is a 4-20mA signal output type.

[0042] In a preferred embodiment, both the digital signal input wiring area 4 and the digital signal output wiring area 5 are transistor type, and the terminals are pluggable.

[0043] In a preferred embodiment, the display interaction area 1 is a touch-sensitive operation panel, and the control types include proportional control, PID control, split-range control, and cascade control.

[0044] In a preferred embodiment, the terminals of the analog signal input wiring area 2, the analog signal output wiring area 3, the digital signal input wiring area 4, and the digital signal output wiring area 5 are all pluggable.

[0045] In a preferred embodiment, the communication interface of the power supply and communication signal wiring area 6 supports PROFIBUS, MODBUS protocols and Ethernet communication, and data communication is achieved by connecting a 485 or Ethernet communication cable.

[0046] The multifunctional control touch screen for automation systems disclosed in this utility model has the following practical applications:

[0047] For automated production lines that require precise temperature control of the heating furnace, the system must support PID closed-loop regulation, local parameter setting, and remote monitoring, while being compatible with both analog temperature signal input and digital equipment start / stop control.

[0048] Connect the 220VAC power supply to the device through the dedicated terminal in the power and communication signal wiring area 6 to power the system.

[0049] The 24VDC power output terminal in this area provides an independent power supply for temperature sensors (such as PT100 transmitters) to ensure signal stability.

[0050] Connect the 4-20mA signal output by the temperature sensor to the AI1 terminal of the analog signal input wiring area 2 as the actual temperature feedback value (PV). Connect the control signal line of the heating furnace regulating valve to the AO1 terminal of the analog signal output wiring area 3 and set it to the 4-20mA output mode to adjust the valve opening and control the heating power.

[0051] Connect the furnace “run / fault” status signal (transistor type) to the DI1 terminal of the digital signal input wiring area 4 for real-time monitoring of equipment status. Connect the furnace start / stop control signal to the DO1 terminal of the digital signal output wiring area 5 to realize local touch screen control of the equipment.

[0052] The temperature data is uploaded to the SCADA system in real time via the RJ45 interface in power and communication signal wiring area 6, connecting to the factory Ethernet. Operators can interact with the system through the touchscreen in display interaction area 1, selecting PID control mode and setting parameters.

[0053] Target temperature (SP) = 80℃

[0054] Proportional band (P) = 20%

[0055] Integration time (I) = 5 min

[0056] Differential time (D) = 1 min

[0057] Enable the reverse mode (reduce heating power when the temperature is higher than the set value).

[0058] In the control logic and operation flow:

[0059] Closed-loop control process: The system collects the temperature signal (PV value) from the AI1 terminal in real time, compares it with the set value (SP=80℃) to calculate the deviation, and automatically generates a control signal (AO1 output) through a PID algorithm to dynamically adjust the opening of the control valve.

[0060] When the temperature is lower than the set value, increase the output current of AO1 (e.g., from 12mA to 16mA) to increase the heating power;

[0061] When the temperature approaches the set value, the steady-state error is eliminated through integral action, ensuring that the temperature remains stable within ±0.5℃.

[0062] Anomaly handling and remote monitoring:

[0063] If the heating furnace malfunctions, the DI1 terminal detects a change in the digital signal, a red alarm message pops up in the interactive area 1, and the power supply to the device is cut off through the DO1 terminal. The remote monitoring terminal can access the device via Ethernet to view the temperature curve, modify control parameters, or export the operation log in real time.

[0064] In addition, if you need to switch from PID control to split-range control (such as controlling two heating devices at the same time), you only need to select the new control type on the touch screen interface, set the split point (such as 50% power), and connect the control signal of the second device to the AO2 terminal. There is no need to reprogram or adjust the hardware wiring.

[0065] If you need to replace a sensor or actuator, simply unplug and plug the connector of the AI1 / AO1 terminal. The hardware replacement can be completed within 5 minutes. Combined with the "Input Point Monitoring" function of the touch screen (which displays the AI1 signal value in real time), you can quickly verify the correctness of the wiring.

[0066] The above embodiments, through specific temperature control scenarios, demonstrate the core advantages of the multi-functional control touchscreen: "wiring is hardware configuration, and the touchscreen is logic programming." Its modular design, combined with preset control algorithms, makes it widely applicable to automation fields with high real-time and stability requirements, such as chemical, pharmaceutical, and food processing industries, significantly reducing system complexity and maintenance costs.

Claims

1. A multifunctional control touchscreen for an automation system, characterized in that: It includes a display interaction area (1) on the front of the housing, analog signal input wiring area (2) and analog signal output wiring area (3) on both sides of the housing, digital signal input wiring area (4) and digital signal output wiring area (5) on the bottom of the housing, and power and communication signal wiring area (6) on the back of the housing. The display interaction area (1) is a human-computer interaction interface used to select control type and set parameters; The analog signal input wiring area (2) includes 5 sets of analog signal input terminals and 1 set of 24VDC power output terminals; The analog signal output wiring area (3) includes 5 sets of analog signal output terminals and 1 set of 24VDC power output terminals; The digital signal input wiring area (4) includes 5 sets of digital signal input terminals and 1 set of 24VDC power output terminals; The digital signal output wiring area (5) includes 5 sets of digital signal output terminals and 1 set of 24VDC power output terminals; The power and communication signal wiring area (6) includes a set of 220VAC power input terminals, a set of PROFIBUS and MODBUS communication interfaces, a set of RJ45 interfaces and a set of USB interfaces.

2. The multifunctional control touch screen for an automation system according to claim 1, characterized in that: The signal type of the analog signal input wiring area (2) is one of 4-20mA, 0-20mA and 0-10VDC.

3. A multifunctional control touchscreen for an automation system according to claim 1, characterized in that: The analog signal output wiring area (3) is a 4-20mA signal output type.

4. A multifunctional control touchscreen for an automation system according to claim 1, characterized in that: Both the digital signal input wiring area (4) and the digital signal output wiring area (5) are transistor type, and the wiring terminals are pluggable.

5. A multifunctional control touchscreen for an automation system according to claim 1, characterized in that: The display interaction area (1) is a touch-sensitive operation panel, and the control types include proportional control, PID control, split-range control and cascade control.

6. A multifunctional control touchscreen for an automation system according to claim 1, characterized in that: The terminals of the analog signal input wiring area (2), analog signal output wiring area (3), digital signal input wiring area (4) and digital signal output wiring area (5) are all pluggable.

7. A multifunctional control touchscreen for an automation system according to claim 1, characterized in that: The communication interface of the power supply and communication signal wiring area (6) supports PROFIBUS, MODBUS protocols and Ethernet communication, and data communication is achieved by connecting a 485 or Ethernet communication cable.

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