描述
模块式的PLC是按功能分成若干模块，如CPU模块、输入模块、输出模块、电源模块等等。大型机的模块功能更单一一些，因而模块的种类也相对多些。这也可说是趋势。目前一些中型机，其模块的功能也趋于单一，种类也在增乡。如同样OMRON公司C20系列PLC，H机的CPU单元就含有电源，而Ha机则把电源分出，有单独的电源模块。
Allen Bradley Powerflex 700 20BD011A0AYNANB0 7.5HP NIB
*NIB* Allen Bradley Powerflex 700 20BD8P0A0AYNAND0
New Allen Bradley PowerFlex 700 20BD011A0AYNANB0 7.5HP
MINT Allen Bradley Powerflex 700 20BD022A0AYNANC0 15HP
Allen Bradley PowerFlex 700S 20DD011A0EYNANNNA A 7.5HP
ALLEN-BRADLEY 20BD2P1A0AYNANC0 PowerFlex 700 ! NEW !
Allen Bradley Powerflex 700 20BD022A0AYNANC0 /A 15HP
AB POWERFLEX 700 20BD2P1A3AYYACB0 1HP 460V Ser.A TESTED
Allen Bradley 20BD8PA0AYNANC0 PowerFlex 700 Drive 5HP
Allen Bradley 20BD014A0AYNAND0 PowerFlex 700 Drive 10HP
Allen Bradley 20BD8P0A0AYNANC0 PowerFlex 700 Drive 5HP
ALLEN BRADLEY 20B D 027 A 3 AYNARB0 POWERFLEX 700 DRIVE
