HMI是人機界面的簡寫，它為PLC控制系統(tǒng)、I/O或者其他控制系統(tǒng)提供一個人性化的操作界面，而人機界面則通過RS232、485、MODBUS、CAN總線等協(xié)議與這些控制系統(tǒng)交互數(shù)據(jù)與控制信號。由于這種交互是實時的，這就使得HMI(人機界面)實現(xiàn)了下面的關鍵功能：
1、實時監(jiān)控PLC、I/O的運行，并在HMI上形象地顯示出來;
2、操作者可以通過HMI向自動化設備發(fā)出控制信號，使得自動化設備可以按照操縱者的意圖運行。
人機界面(HMI)的應用域決定了它必須具備下列特性：
1. 人機界面(HMI)必須具備和各種自控設備交互數(shù)據(jù)的能力，這需要HMI集成各種型號的PLC、I/O、各種總線協(xié)議等自控設備的通信協(xié)議;
2. 人機界面(HMI)應該提供一個工具軟件，供客戶開發(fā)基于特定控制系統(tǒng)定制相應的應用;
3. 人機界面(HMI)必須是工業(yè)的產(chǎn)品，能夠適應工業(yè)應用環(huán)境，具有可靠的質量和的性能。
General Electric Ge 137D5168G1 Ams Mtr Pos Ind Pcb Circuit Board
General Electric Ge 137D5139P1 Cv Dfg Pcb Circuit Board
General Electric Ge 137D5138G7 Pcb Circuit Board
General Electric Ge 137D5138G0008 137d5136p1 Pcb Circuit Board
General Electric Ge 137D5136P0001 137D5138G 137D5137G1 Cv Dfg Bd Pcb Board
General Electric Ge 137D3071G 137D3070G1 Cv Amplifier Pcb Board
General Electric Ge 137D3069P1 137D3071G0002 Cv Amplifier Pcb Board
General Electric Ge 137C6001G001 7rdb1440 Spud And Cylinder Control Rod Drive
General Electric Ge 136B3107BBG004 Amplifier Board
General Electric Ge 136B310788G003 Amplifier Circuit Board Rev 4
General Electric Ge 136B1308G007 719E259P1 Averaging Card Rev 11a
General Electric Ge 136B1308G003/ATC Averaging Card
General Electric Ge 135B9863G002 5v Power Supply Pcb Circuit Board
General Electric Ge 134B362BX-2 Panel Meter 0-6000turbine Rpm
General Electric Ge 133D4208G 133D2447G2 Inc Ld Rates Pcb Board
General Electric Ge 133D2406G1 Digital Meter Pcb Circuit Board
General Electric Ge 133D2406G0001 Digital Meter Pcb Circuit Board
General Electric Ge 125D6292G8 Max Flow Pcb Circuit Board
General Electric Ge 125D6292G0008 Pcb Circuit Board
General Electric Ge 125D5788G1 Pcb Circuit Board
General Electric Ge 125D5788G02 Ic Op Amp Pcb Circuit Board
General Electric Ge 125D5788G0001 Pcb Circuit Board
General Electric Ge 125D5788G 125D5787P1 125D5786G1 Ic Op Amp Pcb Board
General Electric Ge 125D5787P1 125D5786G3 Ic Op Amp Pcb Circuit Board
General Electric Ge 125D5378G3 Pcb Circuit Board
General Electric Ge 125D5339G4 Hi Qly Ref S/u Pcb Circuit Board
General Electric Ge 125D5332-0 Pcb Circuit Board
General Electric Ge 125D3638G0001 Pcb Circuit Board
General Electric Ge 125D3225G2 994D128-0 Pcb Circuit Board
General Electric Ge 125D3225G0001 Pcb Circuit Board
General Electric Ge 118D1517G0003 Pcb Circuit Board
General Electric Ge 118D1516G0003 Pcb Circuit Board
General Electric Ge 118D1302G2 Steam Line Resonance Compensation Board
General Electric Ge 118D1302G0005 Steam Line Resonance Compensation Board
General Electric Ge 118D1302G0003 Stm Line Res Comp Pcb Board
General Electric Ge 117D9929G0002 Op/dfg Amplifier Pcb Circuit Board
General Electric Ge 117D9929G 117D9931G2 Op/dfg Amplifier Pcb Board
General Electric Ge 117D9900G01 Pcb Circuit Board
General Electric Ge 115D3385G0011 Cba-time Delay Relay Pcb Circuit Board
General Electric Ge 115D3311G4 Pcb Circuit Board
General Electric Ge 115D2994G1 Diode Vt Circuit Board
General Electric Ge 115D2959G1 Diode Load/vt Pcb Circuit Board
General Electric Ge 115D2958G1 Bpv Fast Opng Pcb Circuit Board
General Electric Ge 115D2958G0001 Pcb Circuit Board
General Electric Ge 115D2279G1 Iv Pos Cont Board
General Electric Ge 115D2248G 117D8907G 115D2283P3 Vlv Pos Dem Pcb Circuit Board
General Electric Ge 115D2227G4 Volt Comp Std Pcb Board
General Electric Ge 114D9423G0004 Diode Board Alarm & Trip Pcb Circuit Board
General Electric Ge 114D7374G0001 1st Hit Detection Pcb Board
General Electric Ge 114D7371G1 Current/volt Circuit Board
General Electric Ge 114D6007G1 Ld Freq Cont Pcb Circuit Board
General Electric Ge 114D6005G0004 Pressure Amp Pcb Circuit Board
General Electric Ge 114D6003G2 114D6002B Load Gate Amplifier Pcb Circuit Board
