詳細內(nèi)容：1783-EMS08T 在制造工業(yè)中存在大量的開關量為主的開環(huán)的順序控制，它按照邏輯條件進行順序動作號按照時序動作;另外還有與順序、時序無關的按照邏輯關系進行連鎖保護動作的控制;以及大量的開關量、脈沖量、計時、計數(shù)器、模擬量的越限報警等狀態(tài)量為主的—離散量的數(shù)據(jù)采集監(jiān)視。由于這些控制和監(jiān)視的要求，使PLC發(fā)展成了取代繼電器線路和進行順序控制為主的產(chǎn)品。PLC廠家在原來CPU模板上提逐漸增加了各種通訊接口，現(xiàn)場總線技術及以太網(wǎng)技術也同步發(fā)展，使PLC的應用范圍越來越廣泛。 PLC具有穩(wěn)定可靠、價格便宜、功能齊全、應用靈活方便、操作維護方便的優(yōu)點，這是它能持久的占有市場的根本原因。 RELIANCE ELECTRIC 64670-20R 6467020R TR-12766 TR12766 TRANSFORMER RELIANCE ELECTRIC 64670-16V 6467016V RELIANCE ELECTRIC 64670-16T 6467016T RELIANCE ELECTRIC 64670-16S 6467016S RELIANCE ELECTRIC 64670-11-RA 6467011RA Reliance Electric 64670-11-RA 6467011RA TR 12731 Transformer - RELIANCE ELECTRIC 64670-11R * * Reliance Electric 64670 15R Current Transformer - RELIANCE ELECTRIC 64427-6R OVERLOAD RELAY RELIANCE ELECTRIC 64418-6A 644186A RELIANCE ELECTRIC 63P04-NF322 63P04NF322 RELIANCE ELECTRIC 63871-6R 638716R RELIANCE ELECTRIC 63803-13CT NIB 1 LOT OF 3 RELIANCE ELECTRIC 63803-13CD NIB 1 LOT OF 3 RELIANCE ELECTRIC 63481-TA 63481TA RELIANCE ELECTRIC 63481-RA 63481RA RELIANCE ELECTRIC 63481-JB 63481JB RELIANCE ELECTRIC 63481-6Y 634816Y RELIANCE ELECTRIC 63481-6X 634816X RELIANCE ELECTRIC 63481-6R 634816R RELIANCE ELECTRIC 63481-6R 634816R RELIANCE ELECTRIC 63481-6N 634816N RELIANCE ELECTRIC 63481-6N 634816N RELIANCE ELECTRIC 63481-6L RESISTOR 634816L NIB RELIANCE ELECTRIC 63481-6J 634816J Reliance Electric 63481-6H RELIANCE ELECTRIC 63481-6F 634816F RELIANCE ELECTRIC 63481-6F 634816F RELIANCE ELECTRIC 63481-6DA 634816DA RELIANCE ELECTRIC 63481-6BA RESISTOR * IN A BOX* RELIANCE ELECTRIC 63481-6BA 634816BA RELIANCE ELECTRIC 63481-55AG RESISTOR 10OHMS * IN A BOX* RELIANCE ELECTRIC 6348140BE 6348140BE RELIANCE ELECTRIC 6348140BE 6348140BE RELIANCE ELECTRIC 6348140BE 6348140BE RELIANCE ELECTRIC 63481-40AK 6348140AK RELIANCE ELECTRIC 63481-32E 6348132E RELIANCE ELECTRIC 63481-32E 6348132E RELIANCE ELECTRIC 63481-31W 6348131W RELIANCE ELECTRIC 63481-2Z 634812Z RELIANCE ELECTRIC 63481-2P RESISTOR Reliance Electric 63481-2BE 634812BE Resistor 3000 Ohms RELIANCE ELECTRIC 63481-2AP 634812AP RELIANCE ELECTRIC 63481-25CB 6348125CB RELIANCE ELECTRIC 620752 AAR998K MECHANICAL HUB REPLACEMENT PART RELIANCE ELECTRIC 61C-599 61C599 RELIANCE ELECTRIC 61C501 MODULE * * Reliance Electric 61C501 Input Module Reliance Electric 61C500 Input Module Reliance Electric 61C500 RELIANCE ELECTRIC 61995-R 61995R Reliance Electric 615184-2A Communication Cable GV3000 Drive 9pin to 25pin 0.3M Reliance Electric 615184-1 Cable For AC DC Drive ! WOW Reliance Electric 613204-60R Cable Assembly 5' Long AMP Male/Female Connector Reliance Electric 612571-036S Cable Assembly 17-Pin Male Connector 18 AWG 3' L Reliance Electric 612427-60R 3/8 Connector Cable Assembly 10 300V 4Ft 15124-20 Reliance Electric 612427-096R Cable Assy 20Pin Connector 15124-20-IN 5A 120V 8'L Reliance Electric 612417-60R CFR-125 Connector Cable 10 Amp 300V 4' 15124-10 Reliance Electric 612417-076R Cable Assy 10Pin Connector 15124-10-IN 5A 120V 6'L RELIANCE ELECTRIC 612412-42R SERIAL 3PIN MALE CONNECTOR CABLE-WIRE B314292 RELIANCE ELECTRIC 612412-36R 61241236R RELIANCE ELECTRIC 612412-36R 61241236R RELIANCE ELECTRIC 612411-60R 61241160R RELIANCE ELECTRIC 612410-96R 61241096R RELIANCE ELECTRIC 612410-60R 61241060R RELIANCE ELECTRIC 612408-60R 61240860R Reliance Electric 612408-60R Cable Connector Assembly 5' CFR 125 1/2 RELIANCE ELECTRIC 612404-7R CABLE ASSEMBLY RELIANCE ELECTRIC 612403-36R 61240336R RELIANCE ELECTRIC 612180-502T * IN A FACTORY BAG* RELIANCE ELECTRIC 610293-8A 707312-1R COMMUNICATIONS CARD ADAPTER PASSIVE TAP RELIANCE ELECTRIC 610290-17R 61029017R Reliance Electric 610273-9R Lug Copper 6102739R - RELIANCE ELECTRIC 609860-1C 6098601C RELIANCE ELECTRIC 609860-1C 6098601C RELIANCE ELECTRIC 609424-1B BRUSH HOLDER SPRING * IN A BOX* RELIANCE ELECTRIC 609012-1JJ 6090121JJ RELIANCE ELECTRIC 608895-14 60889514 RELIANCE ELECTRIC 608886-23A 60888623A