描述
可編程控制器PLC運行時可能會出現(xiàn)死機的情況,這給工業(yè)生產(chǎn)造成不可預(yù)估的損失,因此,首先要了解PLC死機的原因,針對原因進行排查,軟件或硬件錯誤都有可能導(dǎo)致PLC死機,下面分別進行介紹:
1、硬件方面
(1)I/O竄電,PLC自動偵測到I/O錯誤,進入STOP模式。
(2)I/O損壞,程序運行到需要該I/O的反饋信號,不能向下執(zhí)行指令。
(3)擴展模塊(功能型,如A/D)線路干擾或開路等。
(4)電源部分有干擾或故障。
(5)PLC的連接模塊及地址分配模塊出故障。
(6)電纜引起的故障。
2、軟件方面
(1)觸發(fā)了死循環(huán)。
(2)程序改寫了系統(tǒng)參數(shù)區(qū)的內(nèi)容,卻沒有初始化部分。
(3)保護程序啟動:硬件保護、限制使用時間(針對貨款收回)
(4)數(shù)據(jù)溢出,步長過大、看門狗(可修改DOG時間)動作。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
?
5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計算機控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
Woodward 5463-393 Analog Input-4-20 mA
Woodward 5463-396 Thermocouple Input
Woodward 5463-397 A/I T/C
Woodward 5463-400 DISCREET OUT
Woodward 5463-405 Discrete Input
Woodward 5463-406 Discrete Output-28 Channel
Woodward 5463-408 4CH MLTFN A/I
Woodward 5463-410 Speed Input
Woodward 5463-428 SIO MODULE
Woodward 5463-431 A/I RTD
Woodward 5463-432 Remote Transceiver
Woodward 5463-436 INTERFACE
Woodward 5463-436 NetCon Interface
Woodward 5463-450 CPU
Woodward 5463-473 VER4.4 SIO OPSYS
Woodward 5463-474 CPU MODULE
Woodward 5463-482 Analog Output(4-20 mA)-DCS II
Woodward 5463-531
Woodward 5463-561 Circuit Board
Woodward 5463-579 FC109 Master Co-Proc
Woodward 5463-581 8CH ISOL 4-20MA INPUT
Woodward 5463-582 8 CHANNEL ISOL ANALOG 0-5V
Woodward 5463-583 8 CH ISOL 0-10V INPUT
Woodward 5463-598 AUX MEMORY(converted from 5462-981)
Woodward 5463-600 AUX MEMORY(converted from 5462-981)
Woodward 5463-602 AUX MEMORY(converted from 5462-981)
Woodward 5463-631 CPU MODULE
Woodward 5463-716 SIO MODULE
Woodward 5463-729 LVDT POS TRANSDUCER
Woodward 5463-750 CPU Connection
Woodward 5463-758 CPU
Woodward 5463-779 Remote Receiver Netcon5000
Woodward 5463-780 NetCon 5000 Remote XCVR
Woodward 5463-781 Aux CPU
Woodward 5463-783 NetCon Discreet Input Card
Woodward 5463-785 NetCon Isolated 4-20 Analog Input Card
Woodward 5463-786 NetCon Analog Output 8 channel Card
Woodward 5463-787
Woodward 5463-790 SIO
Woodward 5463-796 netcon module
Woodward 5463-834
Woodward 5463-870 2C Act Driver
Woodward 5463-873 DISCRETE OUTPUT
Woodward 5463-877 NetCon Actuator Driver Card
Woodward 5463-880 netcon module
Woodward 5463-880 netcon module
Woodward 5463-881 Cpu
Woodward 5463-887 NetCon Isolated Thermocouple Input Card
Woodward 5464-015 SPEED SENSOR
Woodward 5464-017 SPEED SENSOR
Woodward 5464-018 DIG SPEED
Woodward 5464-021 SIO
Woodward 5464-024 CPU Card
Woodward 5464-025 MODULE ASSY-SIO OP SYS 4.6,REV.A
Woodward 5464-033 F/O XCVR
Woodward 5464-034
Woodward 5464-050 Master CPU SQ109
Woodward 5464-114
Woodward 5464-205 NetCon Semi-Isolated RTD Input Card
Woodward 5464-206 Voltage Input(0-5 VDC)
Woodward 5464-210 2 CH ACTUATOR DRIVER
Woodward 5464-213 NetCon Serial Input Output Card
Woodward 5464-218 DISCRETE INPUT
Woodward 5464-223 DISCRETE INPUT
Woodward 5464-243 MODULE ASSY-MASTER CPU,REV.A
Woodward 5464-275
Woodward 5464-301 CPU
Woodward 5464-330 EtherNet
Woodward 5464-331 NetCon FT Kernal PS
Woodward 5464-332 ISO T/C
Woodward 5464-333 ISOL T/C FH
Woodward 5464-334 ISO 4-20 analog input
Woodward 5464-334
Woodward 5464-335
Woodward 5464-337 100 OHM RTD
Woodward 5464-337 RTD 100
Woodward 5464-340
Woodward 5464-348 DRIVER/MPU MODULE
Woodward 5464-414 NetCon Digital Speed Sensor Card
Woodward 5464-428 A/I 4-20
Woodward 5464-439
Woodward 5464-444 NetCon CPU Card
Woodward 5464-458 NetCon Discreet Output 64 Channel Card
Woodward 5464-472
Woodward 5464-473 NetCon Fiber Optic Transceiver Card
Woodward 5464-474 Discrete Input-DCS II
Woodward 5464-485 Module Master CPU
Woodward 5464-536
Woodward 5464-538
Woodward 5464-541
Woodward 5464-542 POSSIBLY FTIO
Woodward 5464-549
Woodward 5464-550 2C Act Driver
Woodward 5464-554 2C Act Driver
Woodward 5464-555 2C Act Driver
Woodward 5464-596
Woodward 5464-643 DI MODULE
Woodward 5464-645 2C Act Driver
Woodward 5464-646 2C Act Driver
Woodward 5464-647 2 ch actuator driver
Woodward 5464-653
Woodward 5464-654 64 CH DISCREET OUTPUT
Woodward 5464-655 4 Chan P Driver
Woodward 5464-658 MPU 4 CH
Woodward 5464-660 Module 4-20MA input
Woodward 5464-661
Woodward 5464-674 Module DCS Ver 7.X SIO
Woodward 5464-674 Module DCS Ver 7.X SIO
Woodward 5464-676 XCVR
Woodward 5464-688 Linknet Controller Module
Woodward 5464-697 CPU Module
Woodward 5464-716A SIO Card(Version 4.6)
Woodward 5464-725 replaced by 5437-523
Woodward 5464-726 replaced by 5437-524
Woodward 5464-727 replace by 5437-419 or 5437-687