Development Of I-O Card For Pc By Using Microchip Via Rs232 Port And Usb Port
The communication between the PC and I/O card which able to control the output signal to machine and read the input signal from machines. Communication is one of the important part in the industrial manufacturing process. There are many types of ports which can be used to communicate with the PC....
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第一著者: | |
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フォーマット: | Monograph |
言語: | English |
出版事項: |
Universiti Sains Malaysia
2017
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主題: | |
オンライン・アクセス: | http://eprints.usm.my/52993/1/Development%20Of%20I-O%20Card%20For%20Pc%20By%20Using%20Microchip%20Via%20Rs232%20Port%20And%20Usb%20Port_Yeoh%20Hooi%20Liang_E3_2017.pdf http://eprints.usm.my/52993/ |
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要約: | The communication between the PC and I/O card which able to control the
output signal to machine and read the input signal from machines. Communication is
one of the important part in the industrial manufacturing process. There are many types
of ports which can be used to communicate with the PC. For this project, the USB and
RS232 ports are used to enable the PC to communicate with I/O card. The schematic
part need to focus the part of the I/O pins. The voltage signal levels input are higher
than the voltage signal levels that can be supported by the I/O card. The optocouplers
can be used for switch on the high voltage signal levels output. The high voltage signal
levels from the machines will switch on the low signal levels input then send to PIC18
microcontroller. The higher voltage signal levels can between 5V and 24V and the
lower signal levels only cannot higher than 0.8V. The microcontroller that used in this
project for control the communication of I/O card with the PC is PIC18 microcontroller.
The skill of drawing the PCB layout needed in this project. Troubleshoot process need
to carry on and avoid the short circuit. PIC18 microcontroller is used need the
programming language knowledge to control the system of the communication. PC
able to read the input that sent from the machines or sensors, the PC need to set the
status of the output. The result will show as the verification of I/O card with PC
communication. There are different applications used to test the I/O pins can send and
read signal correctly. |
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