FOXBORO FBM241
FOXBORO FBM241
FOXBORO FBM241
擇一供應(yīng)商終老,遇一好價格白首。你若采購,便是晴天。
廈門莫格小祖,期待與您貨逢知己!
廈門莫格電氣自動化有限公司
:祖巧麗
:
PLC問世以來,盡管時間不長,但發(fā)展迅速。為了使其生產(chǎn)和發(fā)展標準化,電工委員會(IEC)先后頒布了PLC標準的草案*稿,第二稿,并在1987年2月通過了對它的定義:
“可編程控制器是一種數(shù)字運算操作的電子系統(tǒng),專為在工業(yè)環(huán)境應(yīng)用而設(shè)計的。它采用一類可編程的存儲器,用于其內(nèi)部存儲程序,執(zhí)行邏輯運算、順序控制、定時、計數(shù)與算術(shù)操作等面向用戶的指令,并通過數(shù)字或模擬式輸入/輸出控制各種類型的機械或生產(chǎn)過程??删幊炭刂破骷捌溆嘘P(guān)外部設(shè)備,都按易于與工業(yè)控制系統(tǒng)聯(lián)成一個整體,易于擴充其功能的原則設(shè)計。”
為了避免與個人計算機PC(Personal Computer)相混淆,所以改為PLC(Programmable Logic Controller)即可編程邏輯控制器,但從功能上講,現(xiàn)在的PLC早已不是原來意義上的“PLC”了。
總之,可編程控制器是一臺計算機,它是專為工業(yè)環(huán)境應(yīng)用而設(shè)計制造的計算機。它具有豐富的輸入、輸出接口,并且具有較強的驅(qū)動能力。但可編程控制器產(chǎn)品并不針對某一具體工業(yè)應(yīng)用,在實際應(yīng)用時,其硬件需根據(jù)實際需要進行選用配置,其軟件需根據(jù)控制要求進行設(shè)計編制。
CHECK VALVE INC. UN-3-050-C CHECK VALVE *NEW*
ARMSTRONG 400PSIG 1/2" STEAM TRAP 1811
PARKER CHECK HYDRAULIC VALVE CPS600S -11EZ
YARWAY CLASS 35 1/2" NPT 250 PSI Y STRAINER VALVE, 901
BURKERT 120V 8W 1/4" NPT 0330 D 1/8 FKM BR SOLENOID VALVE, 00453021, NIB
REXROTH 24V HYDRAULIC DIRECTIONAL VALVE 4WE6J61/EG24N9D?K24L/B10
PARKER 3/8"NPT FLOW CONTROL LOCKING VALVE FG3PKCLC1
CIRCLE SEAL INLINE RELIEF VALVE 520B-6MP-60 *NEW*
PARKER 150PSI, 1/4"NPT, FILTER/REGULATO?R ASSEMBLY 06E22A18AC, 16L22BE *NEW*
WORCESTER 1/4"NPT BALL VALVE 444TR11
DEZURIK CI BODY 316 LINER/GATE 150CWP SIZE 6" KNIFE GATE VALVE, NO LABEL
CIRCLE SEAL INLINE RELIEF VALVE 520B-6MP-60 *NEW, SEALED*
AUTOMAX NOVA 250 ACTUATOR, LABEL W/ VELAN STEEL CF8M 6" 150 VALVE
AUTOMATIC VALVE 10BAR PNEUMATIC SOLENOID VALVE NNB 413D43S39DS3-DB?7
BRAY 6" SIZE, 175 PSI LUG STYLE BUTTERFLY VALVE 31-124
ECLIPSE 2.0 PSIG 140°F 1-1/2" NPT ADJUSTABLE BIAS PROPORTIONATOR, 106 ABP *NEW*
MHV&F CO. 4" 125S 200WOG VALVE 404048 104229
MUELLER 176 GAS BALL VALVE 1/2"
PARKER SKINNER FLUID CONTROL SOLENOID VALVE 7131TBN2JV00 *NEW*
2" VALVE T250G
ROSS LUBRICATING OIL COOLER 34M501-2A2
PEGASUS SERVO VALVE 10(1200)-.65(75?0)-750 / 120UE
FABRI-VALVE 8IN STAINLESS STEEL GATE VALVE 0378316 103564
TOYO-OKI HYDRAULIC VALVE HG1-DG3-06 / 5H9110
VICKERS 1" NPTF 3000 PSI 3 MICRON FILTER VALVE, OFP-15-P-3M-11
LINCOLN DIVIDER VALVE UV-35T *NEW*
SMC 1/2" NPT 5-PORT VALVE SUBPLATE, X11, NNB