CPU有PM571、PM581 和PM591三个不同的等级。均带有:LCD显示、操作按键、一个SD卡的扩展口和两个集成的串行通讯口。CPU可直接插在CPU底板上,底板可选择集成以太网或者ARCNET网络接口。此外,保留的CS31的通讯接口是考虑到了和AC31等ABB公司其他系列PLC的兼容性。 通讯模块 除了CPU上集成的通讯接口外,每一个CPU上还可较多扩展4个通讯接口。这4个通讯接口可扩展为任意的标准总线协议。CPU上集成的两个Modbus通讯接口和可选集成的以太网或ARCNET网络接口外,通过通讯扩展接口还能扩展 : ProfibusDP-V1、DeviceNet、CANopen和以太网等总线接口。 1747-M3 EEPROM MEMORY,4K 1747-M4 EEPROM MEMORY,4K 1747-M5 ADAPTER SOCKET-PKG. 5 1747-NP1 WALL MOUNT PWR SUPPLY 120V AC INPUT 1747-NP2 GLOBAL DESK TOP PWR SUPPLY 85/285 V AC IN 1747-OCAPINT WINDOWS NT API FOR 1771-OC MODULE 1747-OCDPDE OC DOC SET/GERMAN 1747-OCDPES OC DOC SET/SPANISH 1747-OCDPFR OC DOC SET/FRENCH 1747-OCDPIT OC DOC SET/ITATIAN 1747-OCDR16 16 MB DRAM FOR 1747 OPEN CONTROLLER 1747-OCDR32 32 MB DRAM FOR 1747 OPEN CONTROLLER 1747-OCDR4 4 MB DRAM TO 1747 OPEN CONTROLLER 1747-OCENET ETHERNET(10/100 BASET)MODULE 1747-OCF 266 MHZ OPEN CONTROL PROCESSOR 1747-OCFAN1 FAN ASSEMBLY FOR 1747 OPEN CONTROLLER 1747-OCIDE1 ATA CARRIER CARD/IDE DRIVE EXPANDER MODULE 1747-OCIDE25 2.5 IDE DRIVE EXPANSION MODULE 1747-OCKTX SINGLE CHANNEL 1-B COMM OPTION MODULE 1747-OCKTXD DUAL CHANNEL A-B COMM OPTION MODULE 1747-OCP252 PARALLEL ADAPTER CABLE 1747-OCPCI2 2-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI3 3-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI4 4-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI5 5-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCI6 6-SLOT PCI BUS FOR 1747 OPEN CONTROLLER 1747-OCPCM1 PCMCIA OPTION MODULE 1747-OCPCM2 PCMCIA OPTION MODULE WITH CARD & SOCKET 1747-OCS92 SERIAL ADAPTER CABLE 1747-OCSBC SERIAL BOOT CABLE 1747-OCSDCK FLASHDRIVE CABLE KIT FOR 1747 OPEN CONTROLLER 1747-OCTS OPEN CONTROLLER FAMILY SUPPORT CONTRACT 1747-OCUS OPEN CONTROLLER FAMILY UPDATE SERVICE 1747-OCVGA1 VGA OPTION MODULE FOR 1747 OPEN CONTROLLER PCI BUS 1747-OCVGAE COMBO OPTION MODULE 1747-PCIAA 1747 PCI BUS INTERFACE KIT 1747-PCIAB 1747 PCI BUS INTERFACE KIT 1747-PCIBA 1747 PCI BUS INTERFACE KIT 1747-PCIBB 1747 PCI BUS INTERFACE KIT