YOKOGAWA   A1P830

當(dāng)YOKOGAWA   A1P830運(yùn)行時(shí)，是通過(guò)執(zhí)行反映控制要求的用戶程序來(lái)完成控制任務(wù)的，需要執(zhí)行眾多的操作，但CPU不可能同時(shí)去執(zhí)行多個(gè)操作，它只能按分時(shí)操作（串行工作）方式，每一次執(zhí)行一個(gè)操作，按順序逐個(gè)執(zhí)行。由于CPU的運(yùn)算處理速度很快，所以從宏觀上來(lái)看，YOKOGAWA   A1P830外部出現(xiàn)的結(jié)果似乎是同時(shí)（并行）完成的。這種串行工作過(guò)程稱為PLC的掃描工作方式。

用掃描工作方式執(zhí)行用戶程序時(shí)，掃描是從第一條程序開始，在無(wú)中斷或跳轉(zhuǎn)控制的情況下，按程序存儲(chǔ)順序的先后，逐條執(zhí)行用戶程序，直到程序結(jié)束。然后再?gòu)念^開始掃描執(zhí)行，周而復(fù)始重復(fù)運(yùn)行。

YOKOGAWA   A1P830的掃描工作方式與電器控制的工作原理明顯不同。電器控制裝置采用硬邏輯的并行工作方式，如果某個(gè)繼電器的線圈通電或斷電，那么該繼電器的所有常開和常閉觸點(diǎn)不論處在控制線路的哪個(gè)位置上，都會(huì)立即同時(shí)動(dòng)作；而A1P830采用掃描工作方式（串行工作方式），如果某個(gè)軟繼電器的線圈被接通或斷開，其所有的觸點(diǎn)不會(huì)立即動(dòng)作，必須等掃描到該時(shí)才會(huì)動(dòng)作。但由于 A1P830的掃描速度快，通常PLC與電器控制裝置在I/O的處理結(jié)果上并沒(méi)有什么差別。

Concluding remark Uses elevator control system which the MIC340 elevatorspecial-purpose frequency changer constitutes, may realize theinblectualization which the elevator controls, but because theperiod of five days ladder and the elevator in person arrives eachlevel the population is the inbligent elevator is unable todetermine, even if YOKOGAWA   A1P830 uses the AITP artificial inbligence system, thetransmission transportation passenger flow inbation also is fuzzy,for solves the elevator this vertical transportation control systemtwo to be big cannot know the factor, will need us to go to theunceasing research and the exploration in the next work.

WESTINGHOUSE 1C31166G01
FOXBORO AD908AC
FOXBORO AD908AE
FOXBORO AD908JQ
FOXBORO AD908CC
FOXBORO E69F-B12-S
ICS TRIPLEX T8461
HONEYWELL CC-TAIN01
BENTLY 1900/65A
WESTINGHOUSE 5X00357G04
TRICONEX 4210
FOXBORO P0926MX
YOKOGAWA PSCAMAAN
YOKOGAWA 8662560000
YOKOGAWA 8596020000
YOKOGAWA 8662570000
YOKOGAWA 16137-153
YOKOGAWA 16137-223
YOKOGAWA 16137-222
YOKOGAWA 16137-188
YOKOGAWA 16137-151
YOKOGAWA PSCDM024DCBAN
YOKOGAWA PSCCM22AAN
YOKOGAWA 16114-500
YOKOGAWA 16137-119
YOKOGAWA VO/E2/TCDM24/L8
YOKOGAWA V0/E1/TCAM/L08
MOORE 16407-1-1
MOORE 16407-01-1
MOORE 16147-51-02
MOORE 16147-51-2
BENTLY NEVADA 146031-02
BENTLY NEVADA 3500/22M
BENTLY 106M1081-01
WESTINGHOUSE 1C31233G04
BENTLY NEVADA 128240-01
BENTLY NEVADA 330703-000-070-10-02-05
BENTLY NEVADA 133442-01
MOTOROLA FLN3524A