HK50AA031
HK50AA031
HK50AA031
PLC是采用“順序掃描,不斷循環(huán)”的方式進行工作的。即在PLC運行時,CPU根據(jù)用戶按控制要求編制好并存于用戶存儲器中的程序,按指令步序號(或地址號)作周期性循環(huán)掃描,如無跳轉(zhuǎn)指令,則從第一條指令開始逐條順序執(zhí)行用戶程序,直至程序結(jié)束。然后重新返回第一條指令,開始下一輪新的掃描。在每次掃描過程中,還要完成對輸入信號的采樣和對輸出狀態(tài)的刷新等工作。
PLC的一個掃描周期必經(jīng)輸入采樣、程序執(zhí)行和輸出刷新三個階段。
PLC在輸入采樣階段:首先以掃描方式按順序?qū)⑺袝捍嬖谳斎腈i存器中的輸入端子的通斷狀態(tài)或輸入數(shù)據(jù)讀入,并將其寫入各對應的輸入狀態(tài)寄存器中,即刷新輸入。隨即關閉輸入端口,進入程序執(zhí)行階段。
PLC在程序執(zhí)行階段:按用戶程序指令存放的先后順序掃描執(zhí)行每條指令,經(jīng)相應的運算和處理后,其結(jié)果再寫入輸出狀態(tài)寄存器中,輸出狀態(tài)寄存器中所有的內(nèi)容隨著程序的執(zhí)行而改變。
輸出刷新階段:當所有指令執(zhí)行完畢,輸出狀態(tài)寄存器的通斷狀態(tài)在輸出刷新階段送至輸出鎖存器中,并通過一定的方式(繼電器、晶體管或晶閘管)輸出,驅(qū)動相應輸出設備工作。
福州卓凱電子科技有限公司聯(lián)系人:林工
電話:0591-22983857
聯(lián)系QQ:879520885
傳真:0591-22989937
產(chǎn)品價格以電話或者QQ詢價為準,發(fā)布價格不做參考
公司地址:福州市閩侯西江濱大道77號正榮潤園一號樓1205室
主營:世界知名品牌的PLC 、DCS 系統(tǒng)備件 模塊
FANUC ROBOTICS OPERATOR INTERFACE
CONNECTION BOARD PCB A16B-2200-0660/07B *JCH*
FANUC ROBOTICS OPERATOR INTERFACE
CONNECTION BOARD PCB A16B-2200-0660/04A
FANUC ROBOTICS OPERATOR INTERFACE
CONNECTION BOARD A16B-2200-0661/04A
FANUC ROBOTICS OPERATOR INTERFACE BOARD
A20B-1006-0290
FANUC ROBOTICS OPERATOR INTERFACE
A16B-2200-0660/04A CONNECTION BOARD PCB CNC
FANUC ROBOTICS OPERATOR INTERFACE A16B-2200-0660/04A CONNECTION BOARD PCB CNC
FANUC ROBOTICS M-NET BOARD
A16B-2201-0771/02A
FANUC ROBOTICS MEMORY DAUGHTER BOARD PCB
A20B-2902-0530/01A
FANUC ROBOTICS MEMORY DAUGHTER BOARD
A20B-2901-0942/02A
FANUC ROBOTICS MEMORY DAUGHTER BOARD
A20B-2901-0050/01A
Fanuc Robotics Memory Board, A20B-3900-0160
/ 04A, ,
FANUC ROBOTICS MEMORY BOARD A16B-1211-0091/05C
FANUC ROBOTICS MEMORY BOARD
A16B-1211-0040/06A
Fanuc Robotics Main PC Board A16B-1210-0950
/ 02a
FANUC ROBOTICS MAIN CPU PCB BOARD
A16B-2200-0842/08F
FANUC ROBOTICS MAIN CPU PCB BOARD
A16B-2200-0841/07E
FANUC ROBOTICS MAIN CPU PCB BOARD A16B-2200-0841/06E
W/ DAUGHTER BOARDS
FANUC ROBOTICS MAIN CPU PCB BOARD
A16B-2200-0841/04C W/ DAUGHTER BOARDS
FANUC ROBOTICS MAIN CPU CIRCUIT BOARD PCB
A16B-1000-0200/07D
FANUC ROBOTICS MAIN CPU BOARD PCB
A16B-3200-0040/08D
FANUC ROBOTICS MAIN CPU BOARD A16B-3200-0330/17G
*JH*
FANUC ROBOTICS MAIN CPU BOARD
A16B-2200-0841/07E W/ DAUGHTER BOARDS
FANUC ROBOTICS MAIN CPU BOARD
A16B-2200-0841/06E
FANUC ROBOTICS MAIN CPU BOARD
A16B-2200-0841/05D *PAINT*
FANUC ROBOTICS MAIN CPU BOARD
A16B-2200-0841/05D
FANUC ROBOTICS MAIN CIRCUIT BOARD PCB
A16B-2200-O842/04C W/ DAUGHTER BOARDS
FANUC ROBOTICS LR MATE CONTROL BOARD
A16B-2201-0580/03C
FANUC ROBOTICS LCB BOARD A16B-2202-0560/04A
*DAMAGED, NO DAUGHTER BOARDS*
FANUC ROBOTICS LCB BOARD A16B-2202-0560/02A
*DAMAGED*
FANUC ROBOTICS INPUT UNIT BOARD PCB
A16B-1310-0530/17D
FANUC ROBOTICS I/O PROCESS BOARD
A16B-2203-0520/06B
FANUC ROBOTICS I/O C5 BOARD
A16B-1212-0222/02A
FANUC ROBOTICS I/O BOARD PCB
A20B-1006-0290/02B
FANUC ROBOTICS I/O BOARD A20B-1002-0310/03A
FANUC ROBOTICS I/O BOARD A20B-0008-0540/01A
FANUC ROBOTICS I/O BOARD A16B-1211-0946/05A
**
FANUC ROBOTICS HITACHI BUBBLE MEMORY UNIT
BMU 64-1 BOARD PCB A87L-0001-0015 05D
FANUC ROBOTICS GRAPHIC CPU BOARD
A20B-1003-0500/01A A16B-2200-016
FANUC ROBOTICS GRAPHIC CPU BOARD A16B-2200-0161/07B
FANUC ROBOTICS GRAPHIC CPU BOARD
A16B-2200-0160/08B
FANUC ROBOTICS GRAPHIC CONTROL BOARD PCB
A16B-2200-0310/03A
FANUC ROBOTICS ETHERNET REMOTE PCB ER1T
BOARD A16B-2203-0290/02A
FANUC ROBOTICS E-STOP UNIT A05B-2400-C453
W/O TOP BOARD
FANUC ROBOTICS E-STOP PANEL BOARD
A05B-2400-C012
24小時咨詢熱線:17705012279
⒉Schneider(施耐德電氣)系列產(chǎn)品》
⒊General electric(通用電氣)系列產(chǎn)品》
⒋Westinghouse(美國西屋)系列產(chǎn)品》
⒌SIEMENS(西門子系列產(chǎn)品)》
⒍銷售ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic Robots、MOTOMAN Robots。
⒎estinghouse(西屋): OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⒏Invensys Foxboro(??怂共_):I/A Series系統(tǒng),FBM(現(xiàn)場輸入/輸出模塊)順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)據(jù)通信及處理等。Invensys Triconex: 冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)結(jié)構的最現(xiàn)代化的容錯控制器