描述
PLC中的面向?qū)ο缶幊痰暮诵木褪呛谙蛔泳幊蹋槍?duì)Step7,我們使用FB去實(shí)現(xiàn)每一個(gè)對(duì)象的控制，控制邏輯、報(bào)警處理、信號(hào)交換全在FB中，對(duì)于應(yīng)用設(shè)計(jì)人員，不需要明白里面的代碼實(shí)現(xiàn)，只需要了解該FB的功能以及如何使用好它就行，這樣對(duì)于應(yīng)用程序人員的編程能力要求大大降低，對(duì)于編程只不過(guò)是遵循架構(gòu)，拷貝代碼，改變輸入輸出條件而已。
那么調(diào)試呢？很多人認(rèn)為使用FB編程的最大麻煩就是FB的多次調(diào)用后，根本無(wú)法診斷這些代碼，從技術(shù)層面上講確實(shí)如此，我們除了從背景DB上查看信息外，是無(wú)法在它多次被調(diào)用后監(jiān)控代碼的，但我已說(shuō)過(guò)，這是黑匣子編程，我們不需要診斷這些代碼，只需要知道什么樣的輸入、什么樣的參數(shù)設(shè)定導(dǎo)致什么樣的輸出就行，代碼的邏輯與功能好壞是由標(biāo)準(zhǔn)庫(kù)開(kāi)發(fā)人員負(fù)責(zé)的，這就要求標(biāo)準(zhǔn)開(kāi)發(fā)人員需要對(duì)他設(shè)計(jì)的功能塊在不同條件下進(jìn)行不同的測(cè)試，保證無(wú)誤，還需要編寫(xiě)完整、詳盡的功能說(shuō)明文檔，以便于應(yīng)用設(shè)計(jì)人員了解這些塊，標(biāo)準(zhǔn)架構(gòu)并不是制定出來(lái)就一勞永逸的，針對(duì)千變?nèi)f化的工程，它是需要不斷完善和修訂的，這也是一個(gè)工程公司可以實(shí)實(shí)在在進(jìn)行知識(shí)積累的地方。程序不僅需要給調(diào)試人員使用，而且用戶(hù)（設(shè)備維護(hù)人員）也需要了解，如果把完整的標(biāo)準(zhǔn)庫(kù)文檔給用戶(hù)，可能曾在技術(shù)外泄的可能，若不給，對(duì)他們?cè)\斷設(shè)備可能曾在困難，這就需要標(biāo)準(zhǔn)制定人員制作另外一分文檔，即設(shè)備維護(hù)文檔，其知識(shí)的透漏以用戶(hù)能夠使用程序進(jìn)行診斷為限。
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(shì)價(jià)格，大量現(xiàn)貨。
主營(yíng)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(mén)子，摩托羅拉，安川。力士樂(lè)。ACSO，橫河等進(jìn)口品牌。 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家
RADIAL PISTON PUMP # H20H-F2 AND H20L-F2
RADIAL PISTON PUMP # HEO55-F2
VICKERS VANE PUMP REMAN VVB032F-PW-20CB?W12/V101S5S11A2?0
SAUER SUNDSTRAND 90M100 HYDRAULIC PISTON MOTOR
RACINE HYDRAULIC PUMP MODEL#PSV-PSAF-?15ERM-56 REMAN/NEW
RACINE HYDRAULIC PUMP MODEL#PSV-PSAF-?10HRM-56 REMAN/NEW
RACINE HYDRAULIC PUMP MODEL#PSV-PSSF-?10HRM-56 REMAN/NEW
RACINE HYDRAULIC PUMP MODEL#PSV-PSSF-?15ERM-56 REMAN/NEW
CONTINENTAL PUMP NEW #PVR1530B10RFO5?21D
RACINE PSQ-PSSF-09ERM-?20 HYDRAULIC VANE PUMP NEW
CONTINENTAL VALVE VS100M-3A-G3B5H?L2-60L-G D10 – 1 1/4
NORTHMAN VALVE SW-G10-C4-A120-?10 NEW SURPLUS D10 -1 1/4
CONTINENTAL PUMP NEW #PVR68B06RFO12H
BOSCH 0811-403-114 NG6 PROPORTIONAL FLOW CONTROL
REBUILT RACINE VANE PUMP # PVS-PSSO-12ER-0?1
NACHI FLOW CONTROL # FG10-373-20 NEW NEVER USED
CONTINENTAL VANE PUMP MODEL# PVR1520B15RMP13?JY5518-1
VICKERS HYDRAULIC VANE PUMP REBUILT #45V42A1C22R
CONTINENTAL MANIFOLD MOUNTED VANE PUMP
OIL GEAR PISTON PUMP NEW SURPLUS W/1 YEAR WARRANTY
REXROTH PROPORTIONAL DIRECTIONAL VALVE REMAN
ROTAC HYDRAULIC ROTARY ACTUATOR MODEL# MPJ34-2V REMAN
VICKERS REMAN VANE PUMP #V2106A DOUBLE SHAFT
BOSCH VALVE NG6 PROPORTIONAL RELIEF MODEL#0811-402-?030
BOSCH D05 DIRECTIONAL VALVE #9810-232-138 110V COILS
VICKERS PUMP REMAN MODEL# V104-G-10 W/1 YEAR WARRANTY
VICKERS VANE PUMP REBUILT FIXED DISP. #25VQ12A11B20
PVR1-6B10-RMP6H?2 NEW CONTINENTAL PUMP
PVR1-6B10-RMP6H?2 NEW SURPLUS CONTINENTAL PUMP
HEYPAC HYDRAULIC DOUBLE ACTING PUMP #GX40-NSNW1 REMAN
RELIANCE ELECTRIC MOTOR NEW ID#P56H1332H
GRESEN DIRECTIONAL VALVE
PARKER D63W1D4Y33 D08 DIRECTIONAL VALVE REMAN
PARKER D63W1B45Y36 D08 DIRECTIONAL VALVE REMAN
PARKER VALVE #D63W1C456Y34 REMAN D08 DIRECTIONAL
VICKERS HIGH SPEED VANE MOTOR NEW SURPLUS #M2335751C13
PACO PUMP CAT# 101250110006122?12 SER#SPE15049-10?02 NEW
PARKER HYDRAULIC ACTUATOR HTR9-18030-BD11?W-A NEW
TUTHILL HYDRAULIC PUMP MODEL# 1RC-RH X191A
RACINE VALVE #FE1-PBAE-T06W-?10 PRESSURE CONTROL NEW
MOOG VALVE SELLING AS-IS MODEL#D642-515A?/SN#D601
MOOG VALVE SELLING AS-IS MODEL#D644-519/?SER#D284
MOOG VALVE SELLING AS-IS MODEL#D642-515A?/SER#D647
WANDFLUH HYDRAULIC VALVE MODEL# AMW4D102 NEW
WANDFLUH HYDRAULIC VALVE D03 MODEL# AMW4D62 NEW
PARKER/NICHOLS MOTOR NEW SURPLUS #050-2-AS-H8-12?48
CHARLYNN/EATON HYDRAULIC MOTOR #103-1022-010 NEW
CO-AX VALVE PART#FL06680/MO?D.#VSVF502C216G?GD50120VXXXP1
VICKERS VALVE#DG4V32AMS?6UH760 NEW VALVES NEVER USED
PARKER HYDRAULIC CYLINDER NEW #CC2HLU18AC 3000PSI
WHITE HYDRAULICS MOTOR#200250A11?02AAAAA NEW SURPLUS
VICKERS HTLS MOTOR NEW SURPLUS # HMA-1030-APO10
VICKERS VALVE D03 NEW SURPLUS MODEL#DG4V32AMF?PA5WLB660
VICKERS D03 VALVE NEW SURPLUS #DG4V3S6NMFPA5W?LH560
VICKERS VALVE D03 NEW SURPLUS DG4V3S6CMFPA5WL?B560
VICKERS VALVE#DG4S2LW01?2AB60 DIRECTIONAL VALVE
REXROTH VALVE MODEL# 4WE6D60OFEG24N9?Z45 D03 REMAN
NACHI VALVE MODEL# SA-G01-C5-C1-30 D03 DIRECTIONAL
VICKERS VANE PUMP REMAN MODEL#V102P2P1C?20
VICKERS VANE PUMP REMAN MODEL#V102P3P10?A20
VICKERS VANE PUMP REMAN MODEL#V102P3P10?A20
VICKERS VANE PUMP REMAN MODEL#V102P3P1D?20 FIXED PUMP
VICKERS HYDRAULIC VANE PUMP REMAN MODEL#V102P2P1C?20
PARKER AIR CYLINDER SER. 2AN #02.00KJTC2ANU3?4A39A1.00
PARKER HYDRAULIC CYLINDER SER. 2H #01.50CJJ2HTV19?AC2.00
PARKER HYDRAULIC CYLINDER SERIES 2H #02.00C2HLT14A2?.000
PARKER HYDRAULIC CYLINDER SERIES 3L #02.50CD3LLU14A?C5.0
BOSCH VALVE 0811-101-272 RELIEF MODULE D05 PATTERN NEW
REXROTH CONTROL COVER MODEL#LFA25H4-7?0/F/12 NEW SURPLUS
BOSCH UNIVERSAL CHASSIS 2 SLOT CARD HOLDER
REXROTH DIRECTIONAL VALVE REMAN
WANDFLUH HYDRAULIC VALVE D05 MODEL# AMW42100A NEW
BOSCH VALVE 9810-161-190 RELIEF MODULE D03 PATTERN
PARKER D3W4CNJC56 DIRECTIONAL VALVE
VICKERS VANE PUMP MODEL#V201P6S1A?11 REMAN
HJC CL-12 SNOWMOBILE HELMET ADULT SIZE LIKE NEW
PARKER DIRECTIONAL VALVE NEW IN BOX
PARKER VALVE #D41FHB61F2VB00?35 USED AS-IS
PARKER FLOW CONTROL NEW IN BOX
FESTO PNEUMATIC CYLINDER DNC-50-50PPV-A NEW
FESTO PNEUMATIC CYLINDER DNC-40-151-PPV-?A NEW
ROSS PNEUMATIC VALVE W7016A2332 NEW
ROSS PNEUMATIC VALVE MODEL# 2751A5001 NEW
NACHI HYDRAULIC VALVE MODEL# SA-G01-C6-C115-?E31 NEW DO3
PARKER CYLINDER NEW NEVER USED.
BOSCH #0521-220-004 NEW HYDRAULIC VALVE
FESTO PNEUMATIC CYLINDER NEW DNC-50-50PPV-A
FESTO PNEUMATIC CYLINDER NEW DNC-40-151-PPV-?A
WEBSTER PUMP MODEL#30B1J3HX-?7L REMAN W/ 1 YEAR WARRANTY
PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅
15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家
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