品牌:其他 | 規格:NI AT-GPIB | 材質:NI AT-GPIB |
產地:美國 |
NI AT-GPIB
NI AT-GPIB
NI AT-GPIB
溫度的設定與監測都要首先由工控機向溫控儀發送數據,每批數據的發送均要佔用的係統時間(約3ms)。由於CD901的通訊為應答式方式,因此不能只是不斷地向溫控儀發送數據,而應採取分時方式進行處理。為確保通訊過程的正常進行,用10ms的時間發送一幀數據,若通訊失敗就重復發送,重復次數超過3次則認為通訊故障並報警。若發送成功,此時還不能立即發送第二幀數據,要等溫控儀返回正確的通訊數據才可以繼續發送新數據。工控機發送的數據指令含有ID地址,當數據發送成功後,只有符合指定ID地址的溫控儀才會返回正確的應答數據,這樣就可以根據工控機發送的ID號來鑒別是哪個溫控儀返回的數據了。由於該RS-485通訊的波特率設置為9600bps,而溫控係統慣性大,溫度變化較慢,實際應用證明完全滿足工程要求。
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FANUC AUTOMATION TRAINING SERVICES CLASS NOTES MANUAL GFS-271C *NEW*
FANUC ROBOTICS INPUT UNIT A14B-0076-B001
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FANUC ROBOTICS SPINDLE MOTOR FAN ASSEMBLY A90L-0001-0317/F / A290-0756-T501
TOSHIBA 50A BJT TRANSISTOR MODULE A50L-1-0125A
FANUC BACKPLANE RACK A20B-1002-0860/03B
FANUC ROBOTICS POWER MATE SERVO AMPLIFIER A02B-0118-B003 *CRACKED PLASTIC*
FANUC 528V 208A TRASNSFORMER A81L-0001-0165