IC697CPM790

 用户把带异步通信适配器的PC与PLC互联通信时通常采用如图7-12所示的两种结构形式。一种为点对点结构，PC的COM口与PLC的编程器接口或其它异步通信口之间实现点对点链接, 如图7-12a所示。另一种为多点结构，PC与多台PLC共同连在同一条串行总线上，如图7-12b所示。多点结构采用主从式存取控制方法，通常以PC为主站，多台PLC为从站，通过周期轮询进行通信管理。GROUPE SCHNEIDER MODICON TELEMECANIQUE 24VDC 16W Power Supply TSXPSY1610


BODINE ELECTRIC CO 0830 BQ Model 830 SCR 


CINCINNATI ELECTROSYSTEMS Model 416 Control and Display Module 416 4 5 5 11


CAL AMP 140 5016 500 Guardian 100 


SIGNET P58440 12VDC 3" Flowmeter 0-300 GPM


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ACME ELECTRIC TB81005 220-480-600V Primary 110-120 


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THERMO SCIENTIFIC Model 20-43 Ramsey 


ALFATRON A Series A420 JMM RS 232 20 mA 


IMO LG K32PA DRS Master K30 S Programmable 


ELECTROSWITCH W-2 Rotary Switch 600 VAC 125 VDC 3669A09G02


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DAVIS SM 510E SOLOMAT 510E Air 


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IFM EFECTOR PB7024 Pressure Sensor PB 010 RBR14 QFPKG US


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