2094-BM02-S/C

PLC程序设计优良与否的几个评价重点指标

（1）PLC程序的正确性。

正确的程序必须能经得起系统运行实践的考验。

（2）PLC程序的可靠性。

●能保证系统在正常和非正常（短时掉电、某些被控量超标、某个环节有故障等）情况下都能安全可靠地运行。

●能保证在出现非法操作（如按动或误触动了不该动作的按钮等）情况下不至于出现系统失控。

（3）PLC参数的易调整性好。

经常修改的参数，在程序设计时必须考虑怎样编写才能易于修改。

（4）PLC程序结构简练。

简练的程序，可以减少程序扫描时间、提高PLC对输入信号的响应速度。

（5）PLC程序的可读性好。

VONWEISE PUMP V06231AB11 1 PHASE 20 RPM

115V

VORTEC 7025 4/4X BRAND

VQC4201-5 SMC VALVE

VQC4201-5 SMC VALVE

VWR Lab Controller Timer

WABCO SOLENOID MODEL#5726325920 24V 50/60HZ

178mA 100%ED 10BAR-MAX PRI 016

WABCO SOLENOID MODEL#5726325920 24V 50/60HZ

178mA 100%ED 10BAR-MAX PRI 016

WAGNER PFM 2007 DISPLAY PANEL

WALCHEM WCT300-1N1 COOLING TOWER CONTROLLER

WALCHEM WCT300-1N1 COOLING TOWER CONTROLLER

WALKER 10180 WING NUT BRASS STAINLESS

WALTON 80A1-2601-1000 TEMP CONTROL BOARD

WALTON 80A1-2601-1000 TEMP CONTROL BOARD

WALTON 985A-1CD0-00AA CONTROL INTERFACE

MODULE 985

WARD 7000-7140-21 CONTACTOR 7000714021

DEFINITE PURPOSE RATING

WARD 7000-7140-21 CONTACTOR 7000714021

DEFINITE PURPOSE RATING

WARNER 305-27-002 BORE-2 STOP 1/2" 24

VDC

WARNER 305-27-002 BORE-2 STOP 1/2" 24

VDC

WARNER ELECTRIC 655-7219-002 PHOTOELECTRIC

SENSOR

WARNER ELECTRIC BRAKE MDL AND SIZE E.B 475

W/ CONDUIT BOX

WARNER ELECTRIC BRAKE MDL AND SIZE E.B 475

W/ CONDUIT BOX

WARNER ELECTRIC LR-11847 MOTION CONTROL

WARNER ELECTRIC SENSOR MCS-3108HA 48-250VAC

WARNER ERS-49 BRAKE ELECTRIC HOLDING

WARNER FIELD AND BEARING ASSEMBY CLUTCH

WARNER MODEL#MCS-625

WARNER SF-400 BRAKE ASSEMBLY 4500 RPM **

WATERS 1515 ISOCRATIC HPLC PUMP - NO POWER

CORD

WATERS 486, TURNABLE ABSORBANCE DETECTOR,

WAT080690

WATSON MARLOW 601-B/R HOSE PUMP W/ BALDOR

MOTOR & TSUBAKI DISCO VARIABLE SPEED

WATSON MCDANIEL STEAM TRAP SERIES FT 128

125 PSI MAX

WATSON SMITH I/P CONVERTER 100X, 4-20MA,

3-27 PSI OUTPUT, 80 PSI INLET

WATTS 0061888 BACKFLOW PREVENTER 3/4' **

WATTS 1/2" 9D-M3 BACKFLOW PREVENTER W/

INTERMEDIATE ATMOS VENT

WATTS 174A PRESSURE SAFETY RELIEF VALVE

3/4"

WATTS 25AUB WATER PRESSURE REDUCING VALVE

1"

WATTS ACTUATOR PA 1000M2 W/ PROXIMITY

CONTROLS ROTARY POSITION SWITCH 12AD0

WATTS ACTUATOR PA 1000M2 W/ PROXIMITY

CONTROLS ROTARY POSITION SWITCH 12AD0

WATTS ACTUATOR RAS 1000M3 W/ WATCHMAN VALVE

POSITION TRANSMITTER FMYB-1120

WATTS ELECTRIC VALVE ACTUATOR PA-1000M1,

INDICATING SWITCH, I2AD0

WATTS FLUIDAIR L75-03W MAX PRESSURE 250PSI

LUBRICATOR

WATTS LUBRICATOR B75-03BJC 150 PSI MAX

WATTS LUBRICATOR B75-03BJC 150 PSI MAX

WATTS PNUEMATIC ACTUATOR, UNIT#PA1500,WITH

ACCORD 1000

WATTS PRESSURE REGULATOR F602-04BJ M5

WATTS REGULATOR ELECTRIC VALVE ACTUATOR

PA-1000, 125 PSI, INDICATE SWITCH, 42AD0

WATTS REGULATOR ELECTRIC VALVE ACTUATOR

PA-1000M3, MIN. OUTPUT 150, 125 PSI

WATTS REGULATOR ELECTRIC VALVE ACTUATOR

PA-1000M4, MIN. OUTPUT 1080, 125 PSI

WATTS REGULATOR R10-04C M3

WATTS SV75-03 PUSH BUTTON SHUT OFF VALVE

PNEUMATIC (LOT OF TWO)

WAUKESHA 1.5" PLUG VALVE

WAUKESHA 2.5" STAINLESS STEEL SPRING

LOADED CHECK VALVE

WAUKESHA 61T 1.5" U T6 FLUID HANDLING

VALVE 1.5"

WAUKESHA 61T 1.5" U T6 FLUID HANDLING

VALVE 1.5"

WAUKESHA CENTRIFUGAL PUMP 2085 WITH BALDOR

MOTOR 10P57W163G1

WAUKESHA CENTRIFUGAL PUMP 2085, US MOTOR

647114

WAUKESHA CHERRY 3-23 16AMP 3" 304

STAINLESS STEEL CAPS LOT OF 2

WAUKESHA CHERRY 3-23 16AMP 3" 304

STAINLESS STEEL CAPS LOT OF 2

WAUKESHA CHERRY BURRELL 3" VALVE

WAUKESHA CHERRY BURRELL ACTUATOR 2"

BUTTERFLY VALVE

WAUKESHA CHERRY BURRELL ACTUATOR 2.5"

WAUKESHA CHERRY BURRELL ACTUATOR WITH 2

1/2" BUTTERFLY VALVE

WAUKESHA CHERRY BURRELL SENT400177 SENTINEL

IV DOUBLE SEAT W/ LIFTER, ROUND BODY

WAUKESHA CHERRY BURRELL VALVE w/ 3''

FITTINGS

WAUKESHA CHERRY BURRELL VALVE WMIX00637

WAUKESHA CHERRY BURRELL W7100632 W71 2'' CS

S-LINE W/O EXT FL SEAT LIFTING

WAUKESHA CHERRY BURRELL W7100633 W71 2''

EXT FL SEAT LIFTING SWITCH-ONLY

Waukesha Cherry Burrell WVALVE00108 W61T

1.5" Sanitary Valve

WAUKESHA CHERRY-BURRELL 2'' BUTTERFLY VALVE

WAUKESHA CHERRY-BURRELL 304 STAINLESS STEEL

3" TEE PIPE FITTING

WAUKESHA CHERRY-BURRELL 90 DEG 316

STAINLESS STEEL PIPE FITTING

WAUKESHA CHERRY-BURRELL MOD. #: WVALVE05799

WAUKESHA CHERRY-BURRELL PUMP MODEL 2045 W/

BALDOR JMM7026T 3HP MOTOR

WAUKESHA CHERRY-BURRELL W71 1.5" SEAT

VALVE !! W71000968

WAUKESHA CHERRY-BURRELL WVALVE03784

PNEUMATIC ACTUATED VALVE

WAUKESHA CHERRY-BURRELL WVALVE12634 W61T

2'' BUTTWELD, MANIFOLD BODY

WAUKESHA CHERRY-BURRELL WVALVE12637 W62TT

3.0'' BUTTWELD 5'' ACTVATOR

WAUKESHA FLUID HANDLING DIVERT VALVE 62TT

2" U T6 2" PIPES

WAUKESHA PUMP MODEL 55

WAUKESHA SEAT VALVE W6800017 2"

WAUKESHA WVALVE W68T 4" ACTUATOR

WVALVE05898

WAUKESHA,61T 2.0" U T6, PNUEMATIC

VALVE

WAUKESHA,61T 2.0"-T6,2"

STAINLEESS PLUG VALVE

WAUKESHA,61T 2.0"-T6,2"

STAINLEESS PLUG VALVE

WAUKESHA,W7100101,1"X2" PNUEMATIC

PLUG VALVE,

WAUKESHA,W7100101,2"X2" PNUEMATIC

PLUG VALVE,STAINLESS

WAUKESHA,W7100102,1X2 2" ,PNUEMATIC

PLUG VALVE

WAUKESKA,4" STAINLESS STEEL PNUEMATIC

VALVE

WCB-FLOW PRODUCTS FITTING 3-32X 23BMP 1.5 X

.75" NPT 316L

WECO TECHNIEK 970709 TRANSFORMER

WECO TECHNIEK SPAARTR, 061127, 50-60 HZ, 3

X 575 V TRANSFORMER

WECO TECHNIEK TRANSFORMER 971074 230/575V

企业名片