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BENTLY NEVADA   3500/92本特利BENTLY NEVADA   3500/92本特利BENTLY NEVADA   3500/92本特利

工控zui重要的*是穩(wěn)定,第二是穩(wěn)定,第三還是穩(wěn)定,而穩(wěn)定不單是硬件方面,軟件其實(shí)也非常重要,再有就是抗于擾。這里只談PLC軟件。 我把PLC程序規(guī)范為以下幾個(gè)組成部分： 
一、系統(tǒng)初始化， 
二、過程或狀態(tài)的描述(相當(dāng)于繼電、接觸控制中的中間繼電器)， 
三、人機(jī)操作控制(手動(dòng)操作，參數(shù)修改等)， 
四、設(shè)備控制輸出(電機(jī)、閥等)， 
五、通信(各控制設(shè)備間的互鎖和數(shù)據(jù)交換)、 
六、過程或狀態(tài)的故障描述， 
七、報(bào)警輸出和故障位置等信息顯示， 
八、生產(chǎn)過程報(bào)表(產(chǎn)、質(zhì)量等)。 
手機(jī)

： 

 Qq:

鄭娟萍

廈門仲鑫航自動(dòng)化設(shè)備有限公司

下面主要談?wù)勥^程或狀態(tài)的描述和設(shè)備控制輸出，因?yàn)檫@基本上是程序的主要部分。
程序好壞的標(biāo)準(zhǔn)：穩(wěn)定、易調(diào)試、易修改、易擴(kuò)展、易讀、實(shí)時(shí)性(快)。在這么多年的實(shí)踐中，我感到先由過程或狀態(tài)的描述得到各種狀態(tài)變量，再對設(shè)備輸出進(jìn)行編程能比較好的達(dá)到上述目標(biāo)，可能它在快的方面有所欠缺(因?yàn)槌绦蜷L一些)但這*可以從其它方面得到解決(例如中斷)。這種想法主要源自數(shù)學(xué)上的狀態(tài)方程：Q=f(S1，S2，S3……..,Sn)其中Q為設(shè)備輸出,S1、S2、S3…….Sn為狀態(tài)變量(包括輸入輸出)。f是由指令系統(tǒng)組成的算法。

SWAGELOKE VALVE  SS-6C-KEVL-25

NOZZLE END KP2743-1-62R

DEZURIK POWERRAC 2" VALVE ACTUATOR 9476332R002

SWAGELOK FITTING PACK OF 3

BOSCH 1/2"NPT SHUT-OFF VALVE 0 821 300 981

CKD SOLENOID VALVE 4TB329-L

PARKER SCHRADER BELLOWS 150PSI SOLENOID VALVE AL51533000XX00A

NELES JAMESBURY * VALVE * A-2200 TT

BURKERT 5282 B 13,0 NBR MS

PARKER 110/120V 10W 40PSI SOLENIOD VALVE W / COIL 71215SN2VN00 / N0C111P3 *NEW*

VICKERS PILOT OPERATED CHECK VALVE, DGMPC-3-ABK-BAK-41 *NNB*

WATTS EDP 1/4" N9 0061905

BANJO 2" BALL VALVE & DUST CAP V-20153SH 200-CAP

PARKER FLOW CONTROL VALVE FC704-2 LOT OF 2

ASCO RED HAT 1/2" SOLENOID VALVE NNB 8210D2 101727

APOLLO CONBRACO APOLLO VALVE C11 1/4

VELAN 1" BALL VALVE G1T13-SP7A 104488

SPEARS * 1 1-/2" VALVE WITH FLANGE  * -

WATTS 250SWP STRAINER LLON 102863

MAC SOLENOID VALVE PME-551BAAA  W/  912B-PM-551BA

SMC VALVE AS2000

ASCO 1" NPT PVS0932 SOLENOID VALVE, 242903-001

SIEMENS 250 PSIG DIFFERENTIAL TYPE FLOW CONTROLLER, 63BD

ZIMMERMAN Y CONNECTION 93987 *LOT OF 3*

NUMATICS PRECISION LIMIT VALVE NIB 0MA4-1

TAYLOR * VALVE  1/2"  * B2E3061711

ROSS VALVE BODY SERVICE KIT, 1678K77 *NEW*

KIP INC. 24/60V 6W 40 MOPD 1/8" X 1/16" ORIFICE SOLENOID VALVE, 142135 *NEW*

SPORLAN VALVE PFE-12 *NEW*

NUMATICS 150PSIG PNEUMATIC VALVE 152JJ400O000000

WILKINS 7/8"NPT DUAL CHECK BACKFLOW PREVENTER VALVE 34-760

NACHI MODULAR VALVE OCY-G03-P-J50 *NEW*

FESTO 16BAR BRANCHING MODULE FRM-D-MINI

AUTOMAX INC. VALVE E300-12

CANFIELD SOLENOID CONNECTOR VDC/VAC NIB 6-48

ROSS PNEUMATIC VALVE 1523A4002 1-10 BAR

FISHER SIZE 30 TYPE 657 / EZ BODY ACTUATOR 1" VALVE 104027

LESER *  NPT1XNPT11/2 RELIEF VALVE  * 4592.2492

SLOAN VALVE CO. CONTROL STOP SERIES H-700

SMC BLANK PLATE ASSEMBLY VVQ4000-10A-1

TOYO 125S 200 WCC 3" RED-WHITE VALVE 208A 125

UNKNOWN MFG * DIAPHRAGM VALVE  * DN50-2"

VICKERS 1-1/2"NPT, 1"NPT, 1/4"NPT, 1/2"NPT VALVE 626192, 883901

BAILEY 4-20mA 150PSI 30VDC PNEUMATIC VALVE POSITIONER AV3321030

3/4" RELIEF VALVE

NORGREN 714-01 KIT NIB

ALLAR COMPANY VALVE 24130 NIB

NUMATICS SHUT OFF VALVE VS21-04

JOHNSON CONTROLS 25PSIG, RESET VOLUME CONTROLLER P-3800-1

BRASS 2-1/2" PIPE CAP LOT OF 4

NORGREN 110/120V 50/60HZ 7W  SOLENOID COIL 26E01017

DYNAQUIP 1-1/2", 600WOG, VALVE *NEW*

MAC VOELKER CONTROL VALVE 180111 16000 *NEW*

KNIGHT PNEUMATIC CONTROL HANDLE BPA9111B

SOLENOID VALVE COIL, 27-462-2 D

TRABON LUBRIQUIP FLOW CONTROL MODULAR DIVIDER VALVES, MSP-40S *LOT OF 2*

NUMATICS 150PSIG 110-120V SOLENOID VALVE 152SA400K000030 103425

VELAN GATE VALVE F08-0064C-13GX

ROSS .10BAR REGULATOR VALVE 1306K91 

ASCO 120/60, 110/50 SOLENOID COIL MP-C080 238610-132D

DRESSER 3/4" 20PSI 333LBS/HR RELIEF VALVE NIB 1543F 103396

HYTORK 425 4" VALVE ACTUATOR W/ WESTLOCK POSITIONER 103924

APOLLO CONBRACO 2000 WOG 1/2" NPT CARBON STEEL BALL VALVE, 73A-103-01 *NEW*

ASCO REDHAT 1/2" SOLENOID VALVE NIB SCX8210G09413600 101786

MAXON * 1" FEMALE STO VENT VALVE * 93A227050

ASCO 1/2"NPT 2 PORTS 150PSI HIGH-FLOW CHECK VALVE V0127 *NEW*

MILLER NACHI THROTTLE & CHECK VALVE, CFS-G03-E

FORGED STEEL BALL VALVE 1/4"

TRABON * FLOW CONTROL MODULAR DIVIDER VALVE LOT OF 3 * 527-005-770

WILKERSON 10-1/2"OAL, 2-PORT,PARTICULATE FILTER F30-06-000A G92

ARI 1 3/4"  SAFETY VALVE EN ISO 4126-1

ROSS 26 VA 110/50V NNB

WATTS 3/4"NPT REGULATOR 9252 *NEW*

STOCKHAM 1-1/4 INCH, VALVE G-675

REXROTH SOLENOID W5147 LOT OF 3

SMC SUCTION FILTER EZFA200-F02 AP

ASCO RED-HAT 160 PSI 11.6W 1/4" NPT 3-WAY SOLENOID VALVE, JKF8320G182 *NEW*

HONEYWELL 4 PIECE VALVE REPAIR KIT V5-60-S002 *NEW*

SUN HYDRAULICS 25 GPM DIRECT-ACTING RELIEF VALVE, RDDA-LCV *NEW*

PARKER 1"NPT, 24VDC, 5-125PSI, GOLD RING SOLENOID VALVE 16F24C2164A3FPH80 *NEW*

SHRADER BELLOWS LOCKOUT VALVE LV81AS

VICKERS PILOT VALVE DIAGRAM DG-01

MAC VALVE PME-504CA NIB

ASCO SOL B VALVE WITHOUT COIL

EEP STS 500PSI-550DEG/F PRESSURE VALVE 64250 220 104887

NUMATICS REGULATOR VALVE, 152RS100C000000 *NEW*

NORGREN REGULATOR REPLACEMENT PARTS KIT 5939-06 *NEW,SEALED*

NUMATICS 1/8" PNEUMATIC BASE 103-493 NIB

DWYER 0-10GPH 1/8" WATER SIGHT GAUGE   105368

PARKER PRESSURE SHUT-OFF VALVE 8041E-3/8HS2 103556

PEPPERL + FUCHS * PURGE CONTROL VALVE *  3003-WPSA

NORGREN PNEUMATIC INLINE VALVE  K41DA00KSAKP0

NIBCO 1/2", MALE, VALVE *NEW, LOT OF 2*

NUMATICS 11PAD441O00000 VALVE NEW

SMC SINGLE VALVE MANIFOLD BASE NO PART NUMBER

APOLLO 1/2 HIGH PRESSURE CARBON STEEL VALVE 72-803-01

UNKNOWN MFG 3/4" RELIEF VALVE

REXROTH 3-10BAR 150PSI CERAM VALVE GT-010032-04141

MATRYX 120PSI 225F DIE CAST ALUMINUM VANE ACTUATOR MX200

SMC 24VDC 1.5-9.9 KGF/CM2 (8) PNEUMATIC SOLENOID VALVES W/ MANIFOLD, VZ415

TRABON LUBRIQUIP FLOW CONTROL DIVIDER VALVES LOT OF 2  MSP 20S

ARMSTRONG MACHINE TRAP BUCKET 811

NORGREN 250PSIG LUBRICATOR L12-400-0PDA

FESTO 145 PSI PNEUMATIC SOLENOID VALVES, MN1H-2-1/4-MS, NNB LOT OF 7

BURKERT 00450229 120V 145PSI NEW

MAC 24V 5.4W 120PSI DIRECTIONAL CONTROL VALVE 92B-FAB-000-DM-DDAP-1DM *NNB*

ROSS PNEUMATIC SUB BASE 460K91 *NEW*

UNKNOWN MFG * 1/2" VALVE CF8M * 200WOG

PARKER NEEDLE VALVE 4Z-V4LR-SS, NEW 104343

SIEMENS NULLMATIC 1/2" NPT PRESSURE REGULATOR, 42-15

FESTO SINGLE SUB BASE NASE-1/4-1-ISO

SLOAN DIAPHRAGM W/ BRASS GUIDE A-56-A *NEW*

PROPORTION AIR CONTROL VALVE QB2TFEL010

PARKER 3/8"NPT SHUT OFF VALVE :NO KNOW PART NUMBER: 

ASCO RED-HAT 150 PSI 17.1W 1/4: NPT SOLENOID VALVE, 8340G001

HASCO 1-1/2" 200 GF7M GATE VALVE 1501-006 105558

ASCO 1/8 PIPE 9 WATT SOLENOID VALVE 8262C16 104237

ROSS CONTROLS VALVE BODY SERVICE KIT, 1267K77 *NEW*

ROSS CONTROLS VALVE BODY SERVICE KIT, 742K77 *NEW*

ASCO MP-C-080 / 238210-032D SOLENOID VALVE COIL

LAKE MONITOR B3B-6 WA02 FLOW MONITOR, NNB

NORGREN SOLENOID VALVE VS26S611DF213A 104924

2" SWING CHECK  VALVE 125WSP

BOSCH 110-115V, 50/60Hz PILOT VALVE 0 820 022 957 *NEW*

ABEX JET PIPE SERVO VALVE 425-1175 104871

KUNKLE 1 1/2" PRESSURE RELIEF VALVE 6010HGM01

MKS, SERIES 150 PNEUMATIC HIGH VACUUM RIGHT ANGLE VALVE, 152-0061K *NEW*

GEMINI VALVE 125PSI MAX PNEUMATIC ACTUATOR A522

PARKER SHUTOFF VALVE 04F25C2122CAFGC05   104261

NVFR4200 SOLENOID VALVE 15-130PSI NEW

PARKER 250PSI 1-3/4"NPT AIR PILOT VALVE N32481092

SUN HYDRAULICS FXCA LAN CHECK VALVE 1.0 GPM 9F83 NIB

NUMATICS 1/8"NPT, 5-PORT, PNEUMATIC SOLENOID VALVE 11PAD4410

ASCO RED HAT 30-125PSI SOLENOID VALVE PARTS KIT NIB P210C035 101775

METREX VALVE 1" NPT WATER REGULATING VALVE, NIB

ASCO 120/60 110/50FT SOLENOID VALVE COIL MP-C-011 / 099257-001D 102504

FLUID CONTROLS * CHECK VALVE NIB * 3C14-12T-3

ASCO 120/60 110/50 SOLENOID VALVE MP-C-089 / 238614-032D 105234

POSI-SEAL BUTTERFLY VALVE HANDLE 105429

SPEARS 2" IPS PVC 235 PSI WATER BALL VLAVE NSF-61

SAMSOMATIC VALVE 4253

ASCO VALVE REBUILD KIT 094692 *NEW*

INGERSOLL-RAND 1-1/2"NPT CONTROL VALVE 39437660

BOSCH 315 BAR DIRECTIONAL CONTROL VALVE, 0-810-091-541

NUMATICS 1/4"NPT 3 PORTS QUICK EXHAUST VALVE SEV25BN *NEW*

HAMLET * 3/8" 5000 PSI FLOW CONTROL VALVE * R-PTFE/H-300

MOORE PRODUCTS CO. NULLMATIC PRESSURE REGULATOR 40-15 / 14870-4S5EG 104115

PARKER BRASS CPI VALVE NIB 42-V4LR-B 105629

BRADY VALVE LOCK-OUT 2 1/2" - 5" 65561

LADISH CO. 1-1/2" CHECK VALVE V-5260-0607-15A 104196

PENN LUBRICATION PROTECTION

VARIAN VACUMM PRODUCTS MOD# NW25 L6280302  AGILENT VARIAN VALVE

FESTO 24VDC 40-120 PSI PNEUMATIC SOLENOID VALVE, MEH-5/3G-4,0 *NEW*

AUTOMATION TECHNOLOGY ACTUATOR  256-AA-D 102164

NORGREN 150-300PSI 175°F 1/4"NPT REGULATOR R08-300-RGMA *NEW*

WATTS 0-125PSIG 0-9BAR 300PSI-MAX PRESSURE REGULATOR VALVE  99906

NUMATICS 150 PSIG 26A 24V PNEUMATIC SOLENOID VALVE, 082SA415M015S

LUBRIQUIP TRABON  DIVIDER VALVE MSP-10S L03

DWYER PRESSURE SWITCH NIB 1910-1

LEGEND VALVE * 2" THERMOPLASTIC VALVE  * S-613

NIBCO  1" TRIM VALVE KT-65

FISHER 150 PSI 3/32" ORIFICE 3-WAY SNAP-ACTING SWITCHING VALVE,  TYPE 168-1

TOTO 16K- 1/2 VALVE

PVC  1/2" COMPACT BALL VALVE   99928

NUMATIC AIR VALVE  062BA415M000061

ASCO RED-HAT 110/120V 15.4W 25 PSI 1-1/4" NPT SOLENOID VALVE, 8215B060 *NEW*

ROSS 8.6-20.7BAR 0-200PSI PRESSURE REGULATOR 5211B6027 99774

RANDLEMAN 1" NPT BRASS SIGHT FLOW INDICATOR VALVE

GENERAL ELECTRIC 110V/125V 50/60HZ  MAGNETIC COIL 55-501463G012

NORTH/EMED 5" DIAMETER, VALVE WHEEL LOCKOUT VL3-R, VS04R *NEW*

LUBRIQUIP TRABON BY-PASS MODULAR DIVIDER VALVE

FESTO *  BLUE ALUMINUM FITTING  * UNAVAILABLE

MAC 120V 14.8W 60HZ 150 PSI PNEUMATIC VALVE, 501F-01-2

DEZURIK 136-LCV-264B SIZE 3 VALVE ACTUATOR 9222398

BINKS METERING VALVE 73-159

FESTO SHUTOFF VALVE SERIES 89 TYP QH

TRANSPAK 3-15PSIG 4-20MA 10-90V 1/4" SOLENOID VALVE TP690-001 105402

NUMATICS 100-115VOLTS 50/60HZ 150PSI PNEUMATIC VALVE I34BB400KP14D *NEW NO BOX*

SHARPE BODY 4 SEAT NG VALVE 84 103848

PARKER 5000 PSI 8 GPM HYDRAULIC FLOW CONTROL VALVE, F820S *NEW*

SMC SOLENOID VALVE SUPPLY PRESS  NVZ5140-5DZ NVZ5140-CCM00392

BOSCH FLOW CONTROL AIR THROTTLE VALVE 0821200008 0 821 200 008

DEMCO *  4 " - 175 PSI BUTTERFLY VALVE * 2151-1214351

LEGEND VALVE * BRASS 3/4 BALL VALVE  * T-1001

HERION 30-150PSI SOLENOID VALVE *NEW*

LEGRIS 3/8"NPT, ELBOW FITTING 3109 56 18 *LOT OF 24*

ASCO RED HAT PNEUMATIC VALVE 8353C35 NIB

BOSCH 1/4"NPT FLOW CONTROL VALVE 001 0821200162 568 *NEW*

SPEARS * 2" YPIJ3 PVCI SOCKET UNION  * 897-020

NORGREN * PNEUMATIC AIR SPOOL VALVE * K71DA00

SWAGLOK 2500 PSI 1/4"NPT BALL VALVE SS-45S8-KL *NEW*

ARMSTRONG 3/4" NPT, 250PSIG MAX,, INVERTED BUCKET STEAM TRAP 882 C-453

I.S.I. FLUID POWER 30-150 PSI 1/4" NPT PNEUMATIC VALVE, 375-02-001 *NEW*

JAMESBURY F07-N-L-19 VALVE ACTUATOR 2" SS VPVL300SR4/5BLTCXB

ASCO RED HAT II 1/4 PIPE 17.1 WATT 100PSI VALVE 8320G174 104220

OTHER * MUELLER Y-STRAINER 3/4"  * 11M

APOLLO VALVE HANDLE 5 1/2" LOT OF 9

EMERSON 20 TON THERMAL EXPANSION VALVE EMERSON TRAE + 20 HCA

VERSA 3-WAY GENERAL VALVE NIB  ESM-3301-66-E-H-MAE-A120

ASCO RED HAT VALVE 8262G232 NIB

NUPRO GAS VALVE NIB SS-4MB 105240

TRABON LUBRIQUIP FLOW CONTROL MODULAR DIVIDER VALVE, H05

ROSS CONTROLS 24VDC PNEUMATIC VALVE, 8077B4331 *NEW*

JAMESBURY 4" VALVE ACTUATOR ST-200 B W/ PMV DOUBLE ACTING POSITIONER P-2000

W 6" 125lbs. STEAM TRAP VALVE B446

VERSA 100/120V 3.8VDC 8.7W 75 PSIG SELECTOR VALVE, ESM-8302-66-H-A120 *NEW*

BONNEY FORGE  CLASS 800 2" STEEL GATE VALVE A105N NNB 107571-0104

THERMAL ARC 1/16 INCH  

ECKSTROM 12" GATE VALVE 170126

JOHNSON CONTROLS 1", 3-6PSIG SPRING RANGE, ACTUATOR VALVE V-3754-1023 *NEW*

PARKER 300M.O.P.D SOLENOID VALVE RB3E3 *NEW, IN BOX*

EDYNE 1/8"NPT FREE FLOW CHECK VALVE 483-1/8D1-2M4 *NEW SEALED*

MILLER 110VAC 50/60HZ PNEUMATIC SOLENOID VALVE, 340-1DS02-120AC

NIBCO CHEMTROL 1" TRU-BLOC BALL VALVE, *NEW*

ASCO RED-HAT VALVE REPAIR KIT, 302279 *NEW MISSING SPRING*

DOERING 1/8"NPT1-1/2"DIA CARTRIDGE VALVE 947204015  *NEW*

FESTO 116 PSI SOLENOID VALVE, MOFH-3-1/8, NIB

ROSS 0-20 BAR L-O-X VALVE 1523 C 3002

MAC VALVE 10-150 PSI 922B-PM-111CA

NUMATICS 24VDC 6.3W SOLENOID VALVE 225-3698 NNB

VNE 1000 WOG 1-1/2 INCH DN40 STAINLESS STEEL BALL VALVE

NUMATICS 1/4"NPT 2 PORTS FREE FLOW VALVE 2FC2 *NEW*

MASONEILAN DRESSER 4" ACTUATOR VALVE 87-80386 103458

IPEX CHEK VALVE  * 52231

BOSCH DIRECTIONAL VALVE 0820402046

PARKER NEEDLE VALVE 4Z-V4LR-SS, NEW 104343

MAC 24VDC 2.4W 150 PSI PNEUMATIC COIL, DMB-DFFP-1DS2 *NEW NO BOX*

VERSA SOLENOID VALVE 2 POSITION

HANSEN VALVE 05CC14

BOSCH REXROTH PNEUMATIC VALVE MANIFOLD P-067702-00000 *NEW*

JAMESBURY ACTUATOR ST-200 B W/ CLASS 300 VALVE 4 530S B / PMV POSITIONER P-1500

ROSS L-O-X  LOCKOUT & EXHAUST VALVE 1523 C 5012

VICKERS DG4V-3S-2A-M-FTWL-B5-60 SOLENOID OPERATED DIRECTIONAL VALVE

ASCO 3/8" PIPE, 10.1W, 100PSI, SOLENOID VALVE 8263G200

MAXON STO VENT VALVE 3/4" STO-A

JAMESBURY ACTUATOR ST-200B W/ 316SS VALVE 4-5150 31 3600 MT

VERSA-CUBE 1/8"NPT REGULATOR VR3A AA

NUMATICS REGULATOR VALVE 52RD100J012H00 *NEW*

SMC AR40K-N03-Z REGULATOR 125PSI NEW

PANEL MATE INLET 200PSIG OUTLET 150PSIG TEMP 160MAX