Transcription of VB與PLC通訊控制 - web.ncyu.edu.tw
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VB與PLC通訊控制 - web.ncyu.edu.tw
NCYU_BME1VB PLC NCYU_BME2 NCYU_BME3 NCYU_BME4 Visual Basic RS232 PLC PLC NCYU_BME5 NCYU_BME6 NCYU_BME7 NCYU_BME8 NCYU_BME9 NCYU_BME10 NCYU_BME11 PLC NCYU_BME12 1:CD Carrier Detect ( )2:RXD Receive3:TXD Transmit4:DTR Data Terminal Ready ( )5:GND Ground6:DSR Data Set Ready ( )7:RTS Request To Send ( )8:CTS Clear To Send ( )9:RI Ring Indicator ( )1 2 3456789123456789RS-232 NCYU_BME13 2 (RXD)3 (TXD)5 (GND)4 (DTR)1 (DCD)6 (DSR)7 (RTS) 8 (CTS)9 (RI) 9 Pin9 Pin3 (TXD)2 (RXD)5 (GND)6 (DSR)1 (DCD)4 (DTR)8 (CTS)7 (RTS) 9 (RI) NCYU_BME14 COM Port (1) Baud Rate Parity 1 Data Bits 7 8 Stop Bits 1 2 bits NCYU_BME15zBaud RateUnit: bits per second (bps)1200, 2400, 4800, 9600, 19200, 38400.
NCYU_BME 19 SerialPort操控原則 a. 物件：首先瞭解所要操作的物件是什麼？ b. 屬性：設定該物件所具備的特性。 c. 事件：該物件在系統執行的過程中會因其他
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