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PLC多见被问询的疑问集FAQ

2017-07-13 19:27分类:电工考证知识 阅读:

 

1) How to use the IFD8500 RS232 to RS485 converter to login to PLC RS485 port if the RS232 porthas been use to communicate to HMI ?
  若PLC的RS232埠介面已被运用,如何运用IFD8500轉換器連接至PLC的RS485埠介面?
  
  2) Use EH series how to connect to modem for remote monitoring.
  EH系列PLC如何連接數據機作遠端監控?
  
  3) Use EH series to communicate to another EH PLC, in master/slave configuration.
  在主/從式的配备架構下,如何故EH系列通訊連結别的的EH PLC?
  
  4) Use Delta plc to communicate using MODBUS RS485 to 2 delta inverter&2 delta servo at the same to give run signal,speed ref ,monitoring drive status where the PLC act as master,how to optimise the communication btw them.
  运用台達PLC做為主機(Master),,其通訊运用MODBUS RS485同時連接二台台達變頻器及二台台達伺服驅動器,下達運轉、速度並監控驅動器的狀態,如何在他們互相間最佳化?
  
  5) How to use alarm device command(ANS,ANR)?
  如何运用警報點指令(ANS、ANR)?
  
  6) How to communicate to a analog module like DVP-06XA-S using DVP-SS or DVP-SA using RS485?
  运用DVP-SS或DVP-SA的RS485介面,如何通訊連結至一台類比模組,如DVP06XA-S?
  
  7) How to use the fuzzy temperature control command,FTC?
  如何运用FTC含糊溫度操控指令?
  
   How to use set the RTC in PLC&use the RTC in PLC for alarm logging in HMI instead of using HMI RTC?
  如何运用PLC的RTC萬年曆?如何运用此RTC將異常記錄於PLC以替代运用HMI人機的RTC?
  
  9) How to write the PID applications?
  如何寫PID的應用?
  
  十) How to do scaling &conversion for analog module directly.Example, the raw analog input is 4-20mA,&the engineering unit is 0-十0m/min, if there any shortcut where i can directly convert these raw value( mA,V) to engineering unit without writing long formulas in PLC?
  如何直接定義及轉換類比模組?例:未經處理的4-20mA類比輸入,其工程單位為0-十0m/min,是不是有簡易的办法,能够讓我直接轉換這些未經處理的資料(mA, V)成為工程單位,而無須撰寫繁雜的PLC程序?
  
  11) How to do floating points calculations in plc?
  在PLC內如何作浮點運算?
  
  12) Any other features in Delta PLC which is suitable for process control which requires extensive calculations,PID,logging in data values,alarms etc.
  台達PLC特征中,别的適协作程序操控需要額外演算、PID、資料值記錄、異常等?
  
  13) Use EH series or DVP01-PU-H high speed pulse output expansion module to run positioning to delta servo using commands like ZRN,PLSV,DRVA,DRVI,PLSY,PWM,PLSR,GPWM.
  运用EH系列或DVP01PU-H高速脈波輸出擴充模組,如ZRN, PLSV, DRVA, DRVI, PLSY, PWM, PLSR, GPWM指令,在台達伺服上執行定位?
  
  14) How do configure&program for high spd counter inputs using MPU or DVP01-HC-H module&commands like DHSCS,HST commands?
  在主機(MPU)或DVP01HC-H模組,如何配备與設計高速計數器輸入,如:DHSCS、HST指令?
  
  15) How to write interrupt program to switch to interupt routine when detect interupt signal?
  當真測到中斷信號,如何寫中斷程式切到中斷副程式中?
  
  16) When&how to use watchdog(WDT)&constant ramp time for RAMP command?
  看門狗(WDT)、RAMP指令對固定斜率時間,何時以及如何运用?
  
  17)How to use Matrix command?
  如何运用矩陣指令?
  
  18) How to use memory command,MEMR,MEMW?
  如何运用MEMR、MEMW記憶體指令?

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