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弌亠亳 亳 亳亠仄 亠仍亠从仂仄仄仆亳从舒亳亶. Wi-Fi
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亠亰亠仆舒亳 仍亠从亳亳 Wi-Fi.
仍舒仆 仍亠从亳亳:
仆仂于 Wi-Fi
亠仂 Wi-Fi 于 仄仂亟亠仍亳 OSI
Wi-Fi 亳 Ethernet
个亳亰亳亠从亳亶 仂于亠仆 Wi-Fi
丕仂于亠仆 MAC 于 Wi-Fi
亠仂亟 亟仂仗舒 CSMA/CA
弌亠于亳 Wi-Fi
亠亰仂仗舒仆仂 Wi-Fi
Li354 plc lects 2011a
Li354 plc lects 2011aEnhmandah Hemeelee
油
This document provides an overview of programmable logic controllers (PLCs). It begins with a brief history of PLCs, noting they were developed in the 1970s as an alternative to hard-wired control systems. The document then discusses different types of control systems that preceded PLCs, including manual, relay-based, and electronic controls. It proceeds to explain key aspects of PLCs such as hardware components, characteristics, functions, operation, programming, applications, and advantages/disadvantages over other control systems. In particular, it outlines how PLCs can be programmed to perform logic, analog, closed-loop, counting, timing, and network communication functions to automate industrial processes.111 120
111 120Enhmandah Hemeelee
油
This document describes an example of a programmable logic controller (PLC) system for controlling the lights in a parking lot. The PLC counts the number of cars entering and exiting the parking lot using infrared sensors. It sends a signal to an electronic sign when the parking lot reaches its capacity of 5 cars to indicate it is full. The PLC program is designed to open the entrance and exit gates using additional infrared sensors activated by remote control. Inputs and outputs are assigned addresses and the hardware is wired accordingly between the PLC and sensors/sign.101 110
101 110Enhmandah Hemeelee
油
This document describes an automatic garden watering system. It uses sensors to monitor humidity and temperature, and sprinklers to water different areas sequentially. Grass is watered for 4 seconds, then flowers for 10 seconds, then trees for 18 seconds, with 10 ms timers to control each section. The system ensures adequate watering of the entire garden based on environmental conditions.91 100
91 100Enhmandah Hemeelee
油
This document provides information about programming and testing PLC programs. It discusses the hardware and software needed to program a PLC, including the PLC itself, a programming device like a PC, programming software, and a connector cable. It also describes how to test a program by downloading it from the PC to the PLC CPU and using an input simulator to simulate field inputs and observe the resulting outputs. The document includes examples of ladder logic programs using inputs, outputs, AND and OR logic, and timers to control gates at a parking lot entrance and exit.81 90
81 90Enhmandah Hemeelee
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This document describes different types of memory used in programmable logic controllers (PLCs). It discusses process-image input and output registers used to transfer data between the PLC and external devices. It also describes variable memory for storing data, sequence control relays for organizing machine operations, and special memory bits for communicating information. Local memory is provided for scratchpad use or passing parameters. Analog inputs convert real-world values to digital values, while analog outputs convert digital values back to proportional currents or voltages. The document concludes by explaining how to convert a relay-based logic diagram into a ladder logic program for a PLC using basic logic elements and their addressing.61 70
61 70Enhmandah Hemeelee
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The document discusses starting a motor using a PLC and different timer instructions for PLCs. It describes hard-wired direct-on-line starting using contactors and overload protection. It then explains how to start and stop a motor using input and output connections to a PLC, including on-delay, retentive on-delay, and off-delay timer instructions. On-delay and retentive on-delay timers count time when an enabling input is on and turn their timer bit on when the current time exceeds the preset time. The retentive on-delay timer maintains its current value while the on-delay timer resets its value when the input turns off.51 60
51 60Enhmandah Hemeelee
油
The document discusses several companies that manufacture PLC systems including Siemens, Allen Bradley, Omron, and Schneider. It then provides information about the S7-200 PLC including its configuration of inputs, outputs, and I/O numbering. Finally, it describes different types of instructions for PLCs including standard, special, and high speed instructions as well as examples of input instructions like bit logic instructions.
Bd1 gantumur mon e 1
Bd1 gantumur mon e 1Enhmandah Hemeelee
油
The document provides specifications for a program to control traffic light signals in response to a pushbutton. The signals are to initially flicker red at one-second intervals. When the pushbutton is pressed, an indicator will light for 5 seconds during which the red signal continues flickering. Then the signals will change as follows: red flickers for 5 more seconds, yellow lights for 5 seconds, green lights for 10 seconds, then returns to the initial red flickering. The document provides tips for writing the program in a ladder logic format and testing the control operations.
Control precedence program
Control precedence programEnhmandah Hemeelee
油
This document provides instructions for writing and testing programs on a PLC to give precedence to different sections of the program based on the order inputs are received. It covers creating a program that gives precedence to the first input received over others (Chapter 1-3), and another that gives precedence to the last input over previous ones (Chapters 4-5). The chapters guide the reader through writing the ladder logic programs, transferring them to a virtual PLC, running simulations to test the program's behavior, and ensuring it functions as intended by having the correct section take precedence based on input order.
En moogii
En moogiiEnhmandah Hemeelee
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The document provides instructions for writing and running a basic input/output program on a PLC. It describes how to:
1. Input a simple ladder logic program using input switches to control output lamps.
2. Convert the program for the PLC to recognize and run it, checking for errors.
3. Write the program to a virtual PLC and observe it running, checking the RUN indicator is lit.
4. Control lamps in the program using different input conditions like normally closed/open contacts, serial AND, and parallel OR logic.More Related Content
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111 120
111 120Enhmandah Hemeelee
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This document describes an example of a programmable logic controller (PLC) system for controlling the lights in a parking lot. The PLC counts the number of cars entering and exiting the parking lot using infrared sensors. It sends a signal to an electronic sign when the parking lot reaches its capacity of 5 cars to indicate it is full. The PLC program is designed to open the entrance and exit gates using additional infrared sensors activated by remote control. Inputs and outputs are assigned addresses and the hardware is wired accordingly between the PLC and sensors/sign.101 110
101 110Enhmandah Hemeelee
油
This document describes an automatic garden watering system. It uses sensors to monitor humidity and temperature, and sprinklers to water different areas sequentially. Grass is watered for 4 seconds, then flowers for 10 seconds, then trees for 18 seconds, with 10 ms timers to control each section. The system ensures adequate watering of the entire garden based on environmental conditions.91 100
91 100Enhmandah Hemeelee
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This document provides information about programming and testing PLC programs. It discusses the hardware and software needed to program a PLC, including the PLC itself, a programming device like a PC, programming software, and a connector cable. It also describes how to test a program by downloading it from the PC to the PLC CPU and using an input simulator to simulate field inputs and observe the resulting outputs. The document includes examples of ladder logic programs using inputs, outputs, AND and OR logic, and timers to control gates at a parking lot entrance and exit.81 90
81 90Enhmandah Hemeelee
油
This document describes different types of memory used in programmable logic controllers (PLCs). It discusses process-image input and output registers used to transfer data between the PLC and external devices. It also describes variable memory for storing data, sequence control relays for organizing machine operations, and special memory bits for communicating information. Local memory is provided for scratchpad use or passing parameters. Analog inputs convert real-world values to digital values, while analog outputs convert digital values back to proportional currents or voltages. The document concludes by explaining how to convert a relay-based logic diagram into a ladder logic program for a PLC using basic logic elements and their addressing.61 70
61 70Enhmandah Hemeelee
油
The document discusses starting a motor using a PLC and different timer instructions for PLCs. It describes hard-wired direct-on-line starting using contactors and overload protection. It then explains how to start and stop a motor using input and output connections to a PLC, including on-delay, retentive on-delay, and off-delay timer instructions. On-delay and retentive on-delay timers count time when an enabling input is on and turn their timer bit on when the current time exceeds the preset time. The retentive on-delay timer maintains its current value while the on-delay timer resets its value when the input turns off.51 60
51 60Enhmandah Hemeelee
油
The document discusses several companies that manufacture PLC systems including Siemens, Allen Bradley, Omron, and Schneider. It then provides information about the S7-200 PLC including its configuration of inputs, outputs, and I/O numbering. Finally, it describes different types of instructions for PLCs including standard, special, and high speed instructions as well as examples of input instructions like bit logic instructions.Bd1 gantumur mon e 1
Bd1 gantumur mon e 1Enhmandah Hemeelee
油
The document provides specifications for a program to control traffic light signals in response to a pushbutton. The signals are to initially flicker red at one-second intervals. When the pushbutton is pressed, an indicator will light for 5 seconds during which the red signal continues flickering. Then the signals will change as follows: red flickers for 5 more seconds, yellow lights for 5 seconds, green lights for 10 seconds, then returns to the initial red flickering. The document provides tips for writing the program in a ladder logic format and testing the control operations.Control precedence program
Control precedence programEnhmandah Hemeelee
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This document provides instructions for writing and testing programs on a PLC to give precedence to different sections of the program based on the order inputs are received. It covers creating a program that gives precedence to the first input received over others (Chapter 1-3), and another that gives precedence to the last input over previous ones (Chapters 4-5). The chapters guide the reader through writing the ladder logic programs, transferring them to a virtual PLC, running simulations to test the program's behavior, and ensuring it functions as intended by having the correct section take precedence based on input order.En moogii
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油
The document provides instructions for writing and running a basic input/output program on a PLC. It describes how to:
1. Input a simple ladder logic program using input switches to control output lamps.
2. Convert the program for the PLC to recognize and run it, checking for errors.
3. Write the program to a virtual PLC and observe it running, checking the RUN indicator is lit.
4. Control lamps in the program using different input conditions like normally closed/open contacts, serial AND, and parallel OR logic.Lab 02
- 2. 丐 舒仗仍舒仆 于亳亞舒仍 亳亶 勵仆亟仆 从仂仄舒仆亟亟仆 弍勵: laplace(F) laplace(F, t) laplace(F, w, z)
- 3. 丕丕乘 丐 L = laplace(F) F 仆从 t 于舒亞舒亶, L 仆从 s 于舒亞舒亶 弍舒亶仆舒. F 仆从, L - 亟勵 仆从亳亶亞 唏仍唏唏仍仆唏. 亅仆 从仂仄舒仆亟舒舒 F 仆从 舒于舒 舒仗仍舒仆 于亳亞舒仍亞 弍仂亟仆仂. 舒仗仍舒仆 于亳亞舒仍仆 仂亟仂仂亶仍仂仍 仂仂
- 4. 丕丕乘 丐 L = laplace(F,t) 亅仆 从仂仄舒仆亟 舒仗仍舒仆 于亳亞舒仍亞 s 于舒亞亳亶仆 仂仂仆亟 t 于舒亞舒亶 仆从 弍仂仍亞仂仆 弍仂亟仆仂. 舒仗仍舒仆 于亳亞舒仍仆 仂亟仂仂亶仍仂仍 仂仂
- 5. 丕丕乘 丐 L = laplace(F,w,z) 亅仆 从仂仄舒仆亟亞 亞仍 勵亠亟 L 仆从亳亶亞 z 于舒亞舒亶, F 仆从亳亶亞 w 于舒亞舒亶 亞亢 勵亰仆. F(w) 仆从 舒于舒 L(z) 舒仗仍舒仆 于亳亞舒仍亞 弍仂亟仆仂. 舒仗仍舒仆 于亳亞舒仍仆 仂亟仂仂亶仍仂仍 仂仂
- 6. 丿亅亅 弌丕丕 丿亅亅 2.1: 仆从亳亶仆 舒仗仍舒仆 于亳亞舒仍亞 MatLAB 仗仂亞舒仄仄 亞仍仆 弍仂亟 >> syms t; >> f = t^4; >> laplace(f) ans = 24/s^5
- 7. 丿亅亅 弌丕丕 丿亅亅 2.2: 仆从亳亶仆 舒仗仍舒仆 于亳亞舒仍亞 MatLAB 仗仂亞舒仄仄 亞仍仆 弍仂亟 >> syms s; >> g = 1/sqrt(s); >> laplace(g) ans = pi^(1/2)/t^(1/2)
- 8. 丿亅亅 弌丕丕 丿亅亅 2.3: 仆从亳亶仆 舒仗仍舒仆 于亳亞舒仍亞 MatLAB 仗仂亞舒仄仄 亞仍仆 弍仂亟 >> syms t a x; >> f = exp(-a*t); >> laplace(f,x) ans = 1/(a + x)
- 9. 丿亅亅 弌丕丕