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2)具有面向用户的指令和于存储用户程序的存储器。用户控制逻辑用软件实现。适用于控制对象动作复杂,控制逻辑需要灵活变更的场合。
3)用户程序多采用图形符号和逻辑顺序关系与继电器电路十分近似的“梯形图”编辑。梯形图形象直观,工作原理易于理解和掌握。
4)PLC可与编程机、编程器、个人计算机等设备联接,可以很方便地实现程序的显示、编辑、诊断、存储和传送等操作。
5)PLC没有继电器那种接触不良、触点熔焊、磨损和线圈烧断等故障。运行中无振动、无噪音,且具有较强的抗*力,可以在环境较差(如:粉尘、高温、潮湿等)的条件下稳定、可靠地工作。
6)PLC结构紧凑、体积小、容易装入机床内部或电气箱内,便于实现数控机床的机电一体化。
GE MULTILIN 469-P5-LO-A20-E RELAY SR469-RELAY REV: 30I500A8.000
GE MULTILIN SR 469 MOTOR MNGT.
GE MULTILIN SR 469-P1-HI-A20-T-H SR469
GE MULTILIN SR 469-P5-HI-A20-T-H SR469
GE Multilin SR469 Motor SR469-RELAY 469-P5-HI-A20
GE Multilin 469 (SR469) Relay NEW D19
GE multilin Motor SR469-CASE
multilin SR 469 469-P5-HI-A20
GE Multilin, SR469, 469-P5-HI-A20-T
GE multilin Motor SR469-CASE
GE Multilin SR 469-P5-HI-A20-E
multilin SR 469 469-P5-HI-A20
GE Multilin 469 Motor SR469-RELAY 469-P5-HI-A20-E
GE Multilin 469 (SR469) Relay NEW D19
GE Multilin SR469 / SR489 Relay / CT Board 1228-0002-D7
GE Multilin SR469 Board 1228-0001-D3
GE Multilin SR469 Board 1228-0003-D6
GE MULTILIN SR469 / SR489S-400 Switch Board P/N: 1228-001-D3
GE MULTILIN SR469 / SR489S-800 Transorb Board P/N: 1228-001-D3
GE MULTILIN SR469 / SR489 / SR750 / SR745 P/N:1228-0004
GE MULTILIN SR469 P/N:1228-0003-D6
GE MULTILIN SR 469-P1-HI-A20 TH SR469
NEW GE MULTILIN SR 469-P1-HI-A20-T-H SR469
GE MULTILIN SR 469-P1-HI-A20-T-H SR469
GE MULTILIN SR 469-P1-HI-A20 SR469
GE Power Motor SR 469-Relay 469-P5-HI-A20
MULTILIN Motor SR 469-Relay Model SR469-P5-HI-A20
GE Multilin 469-P5-LO-A20
Juniper Networks EX-SFP-10GE-SR SFPP-10GE-SR 740-021308
Brocade 1020 CNA XBR-000180 SFP+SR
FTLX8571D3BCL LB6M 10GE 24-Port SFP+ 10GB 10Gb SR/SW
GE Multilin SR8 P/S PCB 12J0-0015-A4
Dell 407-BBOU 331-5311 RK0CX SFP+SR
In/Dell 10GE SR SFP+ For BROADCOM BCM57810S
GE SR750 FEEDER SR750-CASE
For Juniper, EX-SFP-10GE-SR SFP+ 10G SR 300M
SFP+ 10GE SR Multi-mode Finisar FTLX8571D3BCL
10GE 10G SFP+ SR A3440870 AXM761-10000S
Juniper EX-SFP-10GE-SR SFPP-10GE-SR 740-021308 10GE SFP+ SR
Juniper EX-SFP-10GE-SR SFP+SR 740-021308
LISTINGDELL R8H2F 0R8H2F IN 10GE SFP+SR E10GSFPSR
Cisco WS-X4904-10GE Switch with (4) X2-10GB-SR
Dell 407-BBOU SFP+SR 369-HI-0-0-0-0369-HI-0-0-0-0