SPNIS21 工控PLC系統(tǒng)模塊 現(xiàn)貨

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描述

SPNIS21 工控PLC系統(tǒng)模塊 現(xiàn)貨

超時(shí)檢測機(jī)械設(shè)備在各工步的動(dòng)作所需的時(shí)間一般是不變的,即使變化也不會太大,因此可以以這些時(shí)間為參考,在PLC發(fā)出輸出信號,相應(yīng)的外部執(zhí)行機(jī)構(gòu)開始動(dòng)作時(shí)啟動(dòng)一個(gè)定時(shí)器定時(shí),定時(shí)器的設(shè)定值比正常情況下該動(dòng)作的持續(xù)時(shí)間長20%左右。例如設(shè)某執(zhí)行機(jī)構(gòu)(如電動(dòng)機(jī))在正常情況下運(yùn)行50s后,它驅(qū)動(dòng)的部件使限位開關(guān)動(dòng)作,發(fā)出動(dòng)作結(jié)束信號。若該執(zhí)行機(jī)構(gòu)的動(dòng)作時(shí)間超過60s(即對應(yīng)定時(shí)器的設(shè)定時(shí)間),PLC還沒有接收到動(dòng)作結(jié)束信號,定時(shí)器延時(shí)接通的常開觸點(diǎn)發(fā)出故障信號,該信號停止正常的循環(huán)程序,啟動(dòng)報(bào)警和故障顯示程序,使操作人員和維修人員能迅速判別故障的種類,及時(shí)采取排除故障的措施。
邏輯錯(cuò)誤檢測在系統(tǒng)正常運(yùn)行時(shí),PLC的輸入、輸出信號和內(nèi)部的信號(如輔助繼電器的狀態(tài))相互之間存在著確定的關(guān)系,如出現(xiàn)異常的邏輯信號,則說明出現(xiàn)了故障。因此,可以編制一些常見故障的異常邏輯關(guān)系,一旦異常邏輯關(guān)系為ON狀態(tài),就應(yīng)按故障處理。例如某機(jī)械運(yùn)動(dòng)過程中先后有兩個(gè)限位開關(guān)動(dòng)作,這兩個(gè)信號不會同時(shí)為ON狀態(tài),若它們同時(shí)為ON,說明至少有一個(gè)限位開關(guān)被卡死,應(yīng)停機(jī)進(jìn)行處理。

產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價(jià)格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進(jìn)口品牌。Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA

XYCOM XVME-674 USPP XVME674

FSI Polaris Xycom XVME-682 70682-101 VMEbus CPU Card

XYCOM VMEbus CPU XVME-674 *NICE*

NEW Xycom VME XVME-977 Hard / Floppy Drive Module

XYCOM VMEbus XVME-674 *NICE*

XYCOM XVME-660 VME BUS XVME 660 XVME660 Intel USED

NEW Xycom VME XVME-977 Hard / Floppy Drive Module

Xycom CPU XVME-688 P/N: 70688-011

XYCOM XVME-661 NSFP XVME661

XYCOM XVME-531 NSPP XVME531

XYCOM VMEBUS FAIN XVME-566 *NEW*

XYCOM VMEBUS AOUT XVME-530 *NEW*

XYCOM XVME-531 USPP XVME531

XYCOM XVME684 USPP XVME684

XYCOM XVME-675 CPU MODULE XVME957

XYCOM XVME-686 USPP XVME686

XYCOM VMEBUS BOARD XVME-957 *NEW*

XYCOM XVME 977 HARD DRIVE & DISKETT CONTROL BOARD VME

USED Xycom XVME-660 VMEbus Pentium III Processor Module

XYCOM XVME-428/1 USPP XVME4281

XYCOM XVME-428/2 USPP XVME4282

Xycom VMEBus IASCM XVME-428/1 Mainframe Board VME Card

XYCOM XVME-230 USPP XVME230

XYCOM XVME-957 MODULE XVME957

XYCOM XVME-560 NSFP XVME560

XYCOM XVME-113 NSPP XVME113

XYCOM XVME-401 *NEW*

XYCOM XVME-500/4 *NEW*

XYCOM XVME-505/2 *NEW*

XYCOM XVME-113 MODULE XVME113

XYCOM IASCM XVME-428/1

XYCOM XVME-113 USPP XVME113

Xycom PCB Control Board M# XVME-230 ~REPAIRED SURPLUS~

XYCOM XVME-560 USPP XVME560

XYCOM VMEbus DIO XVME-224 *NICE*

XYCOM VMEbus XVME-113 *NICE*

XYCOM VMEbus XVME-113 *NICE*

XYCOM XVME-260 RELAY OUTPUT BOARD 70260-001 NEW

XYCOM SRM System Resource Module XVME-010 PN: 70010-001

XYCOM AOUT XVME-530 VME BUS 71530D 70530-001 BOARD

USED Xycom XVME-678 VMEbus PC/AT Processor Module

USED Xycom XVME-675 VMEbus CPU Control Board Processor

USED Xycom XVME-674 VMEbus CPU Control Board Processor

Xycom XVME-674 VMEbus CPU Control Board Processor

XYCOM XVME-951 USPP XVME951

XYCOM XVME-500/4 *NICE*

XYCOM VMEbus XVME-957 *NICE*

Xycom XVME-531 VMEbus 16-channel Analog Output

Xycom XVME-230 VMEbus Intelligent Counter Module

Xycom XVME-560 VMEbus Analog Input Module

Xycom XVME-113 VMEbus RAM/ROM Memory Module

Xycom XVME-957 VMEbus Mass Storage Sub-System

XYCOM XVME-957 NSFP XVME957

XYCOM XVME-560 ANALOG INPUT 70560-001 VME BOARD NEW

XYCOM DIGITAL I/O MODULE XVME-200

Xycom XVME-560 Analog Input Board Module NEW

XYCOM XVME-956 NSFP XVME956

Xycom XVME 135 XVME135 VME Board

XYCOM XVME-955 USPP XVME955

XYCOM XVME-200 *NEW*

Xycom XVME-500/1 VME Bus Board

XYCOM XVME-957 USPP XVME957

Xycom XVME-240 XVME240 Digital Input/ Output Module VME

XYCOM XVME-505/2 I/O ANALOG MODULE ~ Used

XYCOM XVME-260 RELAY OUTPUT BOARD 70260-001 NEW-NO

XYCOM 70203-001 VME BOARD XVME-203 NEW

Xycom XVME 401 XVME401 VME Board

Xycom XVME 402 XVME402 VME Board

Xycom VMEbus Board DOUT XVME-260 32pt Relay Out NEW

XYCOM XVME-979/4 USPP XVME9794

XYCOM XVME-560 XVME560 VMEbus Analog Input Board VME

XYCOM XVME-203 COUNTER I/O MODULE NEW IN A BOX

Xycom XVME 085 VME Bus Board

Xycom AOUT XVME-530 70530-001

Xycom DIO XVME-240 70240-001

Xycom AIN XVME-560 70560-001

Xycom XVME-530 XVME530 Analog Output Module VME Board

Xycom PCB Control Card M# XVME-202 ~NEW SURPLUS~

XYCOM XVME202 DIGITAL I/O MODULE VME CONTROL CARD

XVME-202 XYCOM

XYCOM XVME400 XVME-400 Serial Communication Module

XyCom XVME-202

XYCOM XVME-202 USPP XVME202

XYCOM AIN XVME-560 PCB VME Bus

Xycom XVME 240 card

XYCOM DIO XVME-240 PCB

XYCOM XVME-505/2 ANALOG OUTPUT MODULE

Xycom XVME-530 70530-001 AOUT 8-Ch Analog Out Module

XYCOM XVME-201 70201-001 1.1×974401386 BOARD

XYCOM XVME-956 MODULE XVME956

XYCOM XVME-201 PC BOARD

Xycom PCB Control Board M# XVME-230 ~USED SURPLUS~

XYCOM XVME-956 MODULE XVME956

XYCOM DIGITAL I/O MODULE VME CONTROL CARD XVME-202

XYCOM SRM XVME-010 PCB

XYCOM AOUT XVME-530 PCB

Xycom VMEbus DIO XVME-240 P/N 70270-001 ++

Xycom VMEbus SRM XVME-010 P/N 70010-001 ++

XYCOM XVME-202 p/n 70202-001 SA-PAMUX

XYCOM XVME-201 DIGITAL I/O CONTROLLER CARD PANDUIT

Xycom XVME-682 VMEbus CPU Module NEW!

Xycom Floppy Disk / Hard drive card PArt# XVME-955 Used

Xycom XVME-400 Quad Serial Interface Board

XYCOM XVME-490/1 BURNDY PT 96830 P00F00 Z1 70490-001 E


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營: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(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個(gè)大概,以便學(xué)習(xí)編程時(shí)查找);
2、由位控邏輯入手,逐漸增加定時(shí)、計(jì)數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個(gè)物理回路驗(yàn)證,比如變頻器+電機(jī)+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時(shí)也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機(jī)器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動(dòng)器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學(xué)會一種至于其它的學(xué)習(xí)起來也就簡單了。