詳細內容：Banner MGCA-4A 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 811620 USPP 811620 Reliance Electric Remote I/O Processor # 45C201 LNC RELIANCE ELECTRIC 0-48672 USPP 048672 RELIANCE ELECTRIC 0-49013 NSPP 049013 RELIANCE ELECTRIC DSA-MTR-20A DDS-T2 II NEW RELIANCE ELECTRIC 2GU41007 DRIVE 7.5HP NEW RELIANCE ELECTRIC 2GU41007 DRIVE 7.5HP Reliance Electric Rectifier 78178-1RR 781781RR NEW NIB Reliance Electric 5-24 VDC Input Module 57C419 Reliance Electric Reeves Possitive Displacement Pump Reliance Electric Duty Master AC Motor 75HP RELIANCE ELECTRIC 814.56.00 PC BOARD Reliance Electric Remote I/O Interface 45C37B RELIANCE ELECTRIC 57405-D DRIVE ANALOG MODULE I/O Reliance 150hp electric motor Reliance Electric MD65 6MDDN-024102 15HP 460 NEW IN BOX Reliance Electric 1326AS-B330H-21​-K3 Servo Motor NEW RELIANCE ELECTRIC 57404-1G NETWORK COMMUNICATIONS RELIANCE ELECTRIC 0-55325-1 PC CIRCUIT BOARD 0553251 RELIANCE ELECTRIC 40HP DC MOTOR LCATZ FRAME 2100RPM RELIANCE ELECTRIC 814.56.00 PC BOARD SUPER RMI NEW NIB