GE DS3800HSCG
(一)小型PLC
小型PLC的I/O点数一般在128点以下,其特点是体积小、结构紧凑,整个硬件融为一体,除了开关量I/O以外,还可以连接模拟量I/O以及其他各种特殊功能模块。它能执行包括逻辑运算、计时、计数、算术运算、数据处理和传送、通讯联网以及各种应用指令。
(二)中型PLC
中型PLC采用模块化结构,其I/O 点数一般在256~1024点之间。I/O的处理方式除了采用一般PLC通用的扫描处理方式外,还能采用直接处理方式,即在扫描用户程序的过程中,直接读输入,刷新输出。它能联接各种特殊功能模块,通讯联网功能更强,指令系统更丰富,内存容量更大,扫描速度更快。
(三)大型PLC
一般I/O点数在1024点以上的称为大型PLC。大型PLC的软、硬件功能极强。具有极强的自诊断功能。通讯联网功能强,有各种通讯联网的模块,可以构成三级通讯网,实现工厂生产管理自动化。大型PLC还可以采用三CPU构成表决式系统,使机器的可靠性更高。
(四)中央处理单元(CPU)
中央处理单元(CPU)是PLC的控制。它按照PLC系统程序赋予的功能接收并存储从编程器键入的用户程序和数据;检查电源、存储器、I/O以及警戒定时器的状态,并能诊断用户程序中的语法错误。当PLC投入运行时,首先它以扫描的方式接收现场各输入装置的状态和数据,并分别存入I/O映象区,然后从用户程序存储器中逐条读取用户程序,经过命令解释后按指令的规定执行逻辑或算数运算的结果送入I/O映象区或数据寄存器内。等所有的用户程序执行完毕之后,最后将I/O映象区的各输出状态或输出寄存器内的数据传送到相应的输出装置,如此循环运行,直到停止运行。
为了进一步提高PLC的可靠性,近年来对大型PLC还采用双CPU构成冗余系统,或采用三CPU的表决式系统。这样,即使某个CPU出现故障,整个系统仍能正常运行。
[Used] GE D60A00HCHF8AH6<wbr>DM6DP6KU6KW6K D60 CASE, F60 FRONT PANEL
USED General Electric 1253-0003-C4 Multilin Analog & IO Board 369-A200
[Used] GE DFP100 PROTECTION AND CONTROL MALVERN, PA, DFP14A1M110GB 2
1PCS USED GE Multilin UR Series D30E00HCHF8FH Tested in Good Condition
[Used] GE T60H03HKHF8LH6<wbr>NM8NP6TUXXW7H T60 CASE
NEW GE MULTILIN UR 6CH UR6CH UNIVERSAL RELAY C60 DIGITAL IO 6C OUTPUT UR-6CH
GE Multilin, Used B90G11HCHF6DH6<wbr>DL6DN6DS6DU67W<wbr>7H Front Panel, B90 Bus Differ
GE Multilin 1228-0003-D4 SR469 I-700 Analog IO Subsystem Board Relay D4 806500
GE MULTILIN MOTOR MANAGER II MMII-PD-1-2-12<wbr>0 INTELLIGENT MCC CONTROLLER 120VAC
GE Multilin HHD Handheld Display BM42A111000087
GE Multilin F650 Digital Bay Kontroll- FMOD3-37 F650BFCF1G0HI6<wbr>E Bay Controller
GE Multilin 1228-0001-D3 Y-800 Board SR469 SR489 DWG 806509 General Electric
GE Multilin Feeder Protection Relays 735 Damaged, Lot of 3, For Parts Repair
GE UR 2HH , COMMS 2H, LED 3 TERMINAL
GE Multilin UR Series F60 Feeder Management Relay F60N03VKHF8GH6<wbr>DM6CP5A Used
GE Multilin, Used SR489 Generator Management Relay, Aluminum Case
GE Multilin 1228-0002-D2 C-900 Chassis Connector Board SR469 DWG 806505 C900
GE Multilin Power Management Relay DIACA5B 5A 5060Hz New Surplus
GE Multilin L60 Phase Comparaison Relais L60J03HCHF8PHX<wbr>XL8FNXXSXXUXXW<wbr>7H
GE 369-HI-R-M-F-E<wbr>-0-E MULTILIN 369 MOTOR MANAGEMENT RELAY 53CMC340.000 (Q3
[Used] GE DFP100 PROTECTION AND CONTROL MALVERN, PA, DFP14A1M000GB, 5AMP
GE Multilin F650 Digital Bay Controller FMOD3-39 F650MXCF1G4HI6<wbr>E Bay Controller
[Used] GE T60G03HCHF8LH6<wbr>NM8NP6PU6CW7H T60 FRONT PANEL, CASE
[Used] GE F35A00HCHF8AH6<wbr>UM8AP6UUXXWXX F35 FRONT PANEL, CASE
GE Multilin 750 SR750-CASE Feeder Management Relay 750-P5-G5-S5-H<wbr>I-A20-R-T
GE MULTILIN 269PLUS Motor Management Relay - 269PLUS-DO-28<wbr>8-10C-HI
GE Multilin F650 DIGITAL BAY CONTROLLER F650NXBF1G1HI6
1PC Used GE Multilin 【EL1608】Switch
GE Multilin MIF II Digital Feeder DeviceDevice MIVII1000E00HI<wbr>00 Volltage Protect
GE MULTILIN UR6EH MODULE
GE MULTILIN G60 G60E00HKHF8LH6<wbr>DMXXPXXUXXWXX GENERATOR PROTECTION SYSTEM 1601-011
GE Multilin F650 Digital Bay Controller FMOD3-37 F650BFCF1G0HI6<wbr>E BAY controller
GE UR8NH UR 8NH GE multilin UR Module
[New Other] GE MULTILIN UR RHH POWER CARD, 125-250V 35W, 1pcs
GE multilin 350 feeder protecty system 350-LP1G1HEMCM<wbr>1EDN
GE Multilin 1219-1002-H3 SR760 A-Com Board Relay Rev. H3 1719-1002 12191002H3
[New Other] GE Multilin UR 9MH CPU, RS485, 100Base-FX-SC
GE Multilin F650-FEEDER FMOD136V08B3-0<wbr>1 Bay Schutz System F650BABF2G1HI6
GE Multilin F650-FEEDER FMOD3-40 Bay Protezione Sistema F650BABF2G1HI6
GE Multilin, New Other G3P3KH Front Panel, G30 Generator Management