描述
中央控制单元和下位机PLC之间采用串行通讯方式进行数据交换，通常距离在1000m以内选用485双绞线通讯方式，较常距离可选用光纤通讯，更长距离也可选用无线通讯方式。下位机选用PLC控制，根据控制对象的多少，控制对象的范围，可选用一台或多台PLC进行控制，PLC之间数据交换是利用内部链接寄存器，实现数据交换和共享。
Motorola MVME 147-023 MVME147-023 Single VME Board
Motorola MVME 2600-1 VME Mainframe Processor Board
Motorola VME Card SBC MPC750 EO-00102 XPC8260 8260 166
VME MOTOROLA 2304-900
Motorola MVME 2600-2 VME Mainframe CPU Processor Board
MOTOROLA MVME162-412 VME CPU W/16MB DRAM MEMORY 128KB
ASM EPI Reactor Control Module Motorola MVME 162 VME
Epitaxy E3000 Mecca MVME VME Control Mainframe
Motorola MVME167-33B CPU Processor VME Board
Motorola MVME 1603-053 MVME1603-053 6U VME Board
KLA Motorola MVME PN: 01-W3066F & 01-W3180F VME Board
Motorola MVME197LE Single Board Computer Module VME
MOTOROLA XR9103 3 SLOT RACKMOUNT FRONT VME BUS 32/64BIT
MOTOROLA MVME117-4 VME BUS 12.5MHZ MC68010 PROCESSOR
MOTOROLA MVME123 VME BUS 12.5MHZ MC68010 PROCESOR 512KB
