3500/50

Bently Nevada 3500/50

 

结构框图

    1）使用PID过程控制模块。这种模块的PID控制程序是PLC生产厂家设计的，并存放在模块中，用户在使用时只需要设置一些参数，使用起来非常方便，一块模块可以控制几路甚至几十路闭环回路。但是这种模块的价格昂贵，一般在大型控制系统中使用。如三菱的A系列、Q系列PLC的PID控制模块。

    2）使用PID功能指令。现在很多中小型 PLC都提供PID控制用的功能指令，如FX2N系列PLC的PID指令。它们实际上是用于PID控制的子程序，与A/D、D/A模块一起使用，可以得到类似于使用PID过程控制模块的效果，价格却便宜得多。

SQUARE D 9007 BD-20 LIMIT SWITCH 9007-BD-20 9007BD20

HonEYWELL L404C-1162 PRESSURE ConTROL MERCURY SWITCH L4...

NIB ALLEN BRADLEY 700-HT12AA24 TIMING RELAY SERIES: A

NIB ALARM LOCK SYSTEMS INC. 1U112 EXIT DOOR ALARM PG10

NIB MAC VALVES 1111A-111 SOLENOID VALVE 1111A111

ALLEN BRADLEY MANUEL STARTER 140MN0063

SIEMENS 4" PNEUMATIC DAMPER ACTUATOR PSI

BANNER1 EZ-BEAM T30 SERIES RECEIVER RANGE: 60 ...

LOT OF 3 BUSSMAN LPJ-125SP DUAL-ELEMENT TIME-DELAY FUSE...

NIB PARKER 926835 ELEMENT 10 MICRON, 10GPM, 150...

NIB WIX 42121 PREMIUM FILTER

NIB IFM EFECTOR II5742 PROXIMITY SENSOR

RANSBURG METERING VALVE 1539325

SMC C CYLINDER C PRESS. 9.9KGF/CM

LOT OF 2 IFM EFECTOR IG0344 PROXIMITY SENSORS IGK2008BA...

MAC 6513B-511-PM-11?1DA SOLENOID VALVE W/ PME-111DAAG SO...

NEW ANALOG DEVICES 3B18-00 WB STRAIN GAGE INPUT

ConTROL CHIEF 033 REMOTE NCTSAGA1-L8 NEW

SIGNET SCIENTIFIC MK575.4 ACCUM-U-FLOW METER MK5754

JOHNSON ConTROLS DT-DX LCD DISPLAY DT91008104

NUMATICS 0246-ML92 PNEUMATIC CYLINDER NEW

NEW ARO 2132C VALVE 213-2-C

NIB DODGE P2B-VSC-112 PILLOW BLOCK SIZE 1-3/4, STOCK NO...

NEW ALLEN BRADLEY 42KL-U2TC-A2 PHOTOSWITCH RETROREFLECT...

DANFOSS VLT 5000 SERIES ADJUSTABLE FREQUENCY DRIVE INST...

GE V-LINE C40 CIRCUIT BREAKER USED

UE SQUARE D LC1K0910F7 ConTACTOR

ALLEN BRADLEY 1764-LRP PROCESSOR UNIT SER. C REV. D, FR...

MODICON PC-ECPU16K MEM MODULE PCE984685

GE FANUC IC600BF901K REMOTE I/O DRIVER MODULE

MAC TM-DDAP-1DA PILOT OPERATOR VALVE

RELIANCE ELECTRIC 413338-ID CIRCUIT BOARD USED

ROSS 8077B4341 SOLENOID PILOT VALVE

ALLEN BRADLEY 1770-P1 POWER SUPPLY 1770P1

OPCON 8170A-6501 DEMODULATOR 101163 USED

PASS & SEYMOUR L1520P TURNLOK PLUG 4WIRE 20A 3PH 250V

FLUKE 8050A DIGITAL MULTIMETER

XYCOM SSW INDUSTRIAL COMPUTER OPERATOR INTERF...

NIB AMI UCX06-20 BEARING UCX0620

WATLOW ConTROLS POWER ConTROLLER 100AMP...

DURANT 7-Y-M?EU COUNTER MODULE 7DIGIT 24VDC 3....

NIB DWYER 56-RATE-MASTER RMA FLOW METER 56170...

TOTAL ConTROLS TCSSCREEN TCS