TU890 亿佳肯定有
在选择设备时，首先要选择有较高抗干扰能力的产品，其包括了电磁兼容性（EMC），尤其是抗外部干扰能力，如采用浮地技术、隔离性能好的PLC系统；其次还应了解生产厂给出的抗干扰指标，如共模拟制比、差模拟制比，耐压能力、允许在多大电场强度和多高频率的磁场强度环境中工作；另外是靠考查其在类似工作中的应用实绩。在选择国外进口产品要注意：我国是采用220V高内阻电网制式，而欧美地区是110V低内阻电网。由于我国电网内阻大，零点电位漂移大，地电位变化大，工业企业现场的电磁干扰至少要比欧美地区高4倍以上，对系统抗干扰性能要求更高，在国外能正常工作的PLC产品在国内工业就不一定能可靠运行，这就要在采用国外产品时，按我国的标准（GB/T13926）合理选择。
2综合抗干扰设计
主要考虑来自系统外部的几种如果抑制措施。主要内容包括：对PLC系统及外引线进行屏蔽以防空间辐射电磁干扰；对外引线进行隔离、滤波，特别是原理动力电缆，分层布置，以防通过外引线引入传导电磁干扰；正确设计接地点和接地装置，完善接地系统。另外还必须利用软件手段，进一步提高系统的安全可靠性。
FOXBORO SUPPLY GAUGE 0-60 PSI 0-4 BAR 9110-04 911004 1/8" NPT1.6" BASE
Foxboro Status Tap Cable P0911RW
FOXBORO STAINLESS ORIFICE PLATE 1.5X1.52 IN INLET 75GPMTRANSMITTER D470627
FOXBORO STAINLESS ORIFICE PLATE 1.5X1.121 IN INLET 50GPMTRANSMITTER D470628
FOXBORO STABILOG PNEUMATIC CONTROL UNIT ASSEMBLYD451483
FOXBORO STABILOG CO136HV PNEUMATIC CONTROL UNITPROPORTIONAL & RESET
FOXBORO SPECIFIC GRAVITY GAUGE 3 TO 15 PSI .8 1.4 3 1/2"DIA
FOXBORO SERIES 9300A MAGNETIC FLOWTUBE 10" PORT MODEL9310A-SIBA-TSJ-GN
FOXBORO SERIES 2800 MAGNETIC FLOWTUBE 2" PORT MODEL2802-SABA-TSF-G
FOXBORO SENSOR MODULE B0138HS 316L PRESS/RNG M/M
FOXBORO SENSOR 910-ED4
FOXBORO RTT20-D1WCPFN TEMPERATURE TRANSMITTER,0-1202*F NPT1/2" 12-42VDC BI
FOXBORO RTT20-D1SN 12-42V-DC 0-300F TEMPERATURETRANSMITTER B409058
FOXBORO ROLL CHART 39098-T 39098T 100MM
FOXBORO ROLL CHART 35929-T 35929T 100 MM
FOXBORO ROLL CHART 35629-T 35629T 100MM
FOXBORO ROLL CHART 33241-T 33241T 100 MM
Foxboro Red Index Pointer M122LT
Foxboro Purple Index Pointer M122LS
FOXBORO PRESSURE TRANSMITTER MODULE B0138RA
Foxboro Pressure Transmitter IGP10-A23E1F-X2 12.5-42.0 VDCSupply, 0-300psi
FOXBORO PR-14UBS-006 RTD 6 IN STAINLESS TEMPERATURE PROBEB455642
FOXBORO PR-14UBS-006 RTD 5 IN STAINLESS TEMPERATURE PROBEB455398
FOXBORO PR-14UBS-004 RTD 4 IN STAINLESS TEMPERATURE PROBEB455653
FOXBORO PR-14UBS-003 RTD4-1/2 IN STAINLESS TEMPERATUREPROBE B407912
FOXBORO PR-13BBS-018 SENSOR STAINLESS TEMPERATURE 18 INPROBE D284764
FOXBORO PR-13BBS-015 STAINLESS TEMPERATURE 15 IN PROBED284757
Foxboro Power Distribution Module CS-N/SRC N-2AX+DP10
FOXBORO PH10-3N3Q PH10 DOLPHIN ELECTROCHEMICAL ***SUREMENTPH SENSOR B397574
FOXBORO PH10-1P1 SERIES SENSOR WITH BS811JB-300FTCABLE PH101P1Q
FOXBORO PH/ORP HOLDER SENSOR 222T-1X01 STY A
Foxboro Pen Lift Assembly M0100A6 Lot of 2
FOXBORO PB-BA PRESSURE ELEMENT 0-450 KPA RANGE, FOR40/43/45 CHART RECORDER
FOXBORO PA109 FIELD MOUNTED PREAMPLIFIER
FOXBORO P25 1/2" DIAPHRAGM CONTROL VALVE 20 PSI SUPPLY 30PSI LP
Foxboro P0972PP Network Interface Module Nodebus
FOXBORO P0972DX C, CP60 FIELDBUS TERMINATION CABLE
FOXBORO P0961FX CONTROL PROCESSOR SIMPLEX MODULE CP60A,REV: 0H
FOXBORO P0961FR-0M I/A SERIES CONTROL PROCESSOR P0961FRREV 0M MODULE (259)
FOXBORO P0961BS-0D BUSS ASSEMBLY CONNECTOR REV 0DD318663
FOXBORO P0950BM-0H I/A SERIES INTELLIGENT TRANSMITTERINTERFACE MODULE (259)
FOXBORO P0930AS FLUSH HORIZONTAL BASE PLATE BRACKET17-5/8X7-1/2 IN D230162
FOXBORO P0926GH 0D RY0528 173 INPUT MODULE TERMINAL BLOCKD253818
Foxboro P0916FL Rev C 32ft Length Cable I/A Series PLCInvensys PO916FL 32'
Foxboro P0916DY Rev B 32ft Length Cable I/A Series PLCInvensys PO916DY 32'
Foxboro P0916DE Rev C 32ft Length Cable I/A Series PLCInvensys PO916DE 32'
FOXBORO P0914ZM FCM IDENTIFICATION I/A SER OPEN TYPECOMMUNICATION D230088
FOXBORO P0914ZM FCM IDENTIFICATION I/A SER OPEN TYPECOMMUNICATION
FOXBORO P0911RN-C 120V-AC CONTROLLER D472208
FOXBORO P0911RN-C 120V-AC CONTROLLER D471879
FOXBORO P0911QN-A 120V-AC CONTROLLER D471871
FOXBORO P0900WT FBM-10 15 TERMINATION CABLE-WIRE REV HD365942
FOXBORO P0800MY I/A SERIES KEYBOARD CABLE REV 03D499896
FOXBORO P0800HS I/A SERIES WORKSTATION BAY CRT CABLE REV PD499891
FOXBORO P0800DV I/A SERIES FIELDBUS EXT CABLE REV HD499887
FOXBORO P0800DG I/A SERIES FIELDBUS 2FT EXTENSIONCABLE-WIRE D500696
FOXBORO P0800DC PIO CABLE ISOLATOR D228852
foxboro p0800dc i/a series pio isolator cable
Foxboro P0800DA P10-FTUC-Z Cable
FOXBORO P0800CC I/A SERIES GC10 CRT CABLE 100 FEET REV MD499894
Foxboro P0700HU F.B.M. 9C/14C Term. Discrete Wire
FOXBORO P0700HE CABLE/WIRE DISCRETE ASSEMBLY TERMINALD385966
foxboro p0500ru i/a cable termination assebly fbm3a/33a 3wire
Foxboro P0500JX Peripheral Cable Assembly 2 Feet
FOXBORO P0400ZG-0M I/A SERIES NODE INTERFACE P0400ZG REV0M MODULE (259)
FOXBORO P0400YR FBM 15 I/A SERIES 120V-AC REV H EXPANSIONI/O MODULE D400533
FOXBORO P0400YJ FBM 08 I/A SERIES 120V-AC REV F2 INPUTMODULE D400532
FOXBORO P0400YJ FBM 08 I/A SERIES 120V-AC REV E2 PROCESSORMODULE D400534
FOXBORO P0400YJ FBM 08 I/A SERIES 120V-AC REV C PROCESSORMODULE D400524
FOXBORO P0400VR-0K I/A SERIES CONTROL PROCESSOR P0400VRREV 0K MODULE (259)
FOXBORO P0400VR CP 10 CPU CONTROL PROCESSOR MODULE I/ASERIES REV K B327045
FOXBORO P0400VR CONTROL 10 MODULE CPU PROCESSOR I/A SERIESREV H+ B327042
FOXBORO P0400HH TERMINATION CABLE ASSEMBLY REV MCABLE-WIRE D371287
foxboro p0400hh i/a cable termination asseblyfbm1/37/43
FOXBORO P0400DA-0K I/A SERIES MA 0-20 INPUT MODULE FBM 01(259)
FOXBORO P0400CV I/A SERIES X-BUS REV 0207 CONNECTORD499912
FOXBORO P0122AE 9082-01 3-15PSI 1/4 IN NPT PRESSURE GAUGED475598
FOXBORO P0121AM CAPSULE ASSEMBLY
FOXBORO OUTPUT GAUGE 0-60 PSI 9067-02 906702 P0122AX 1/8"NPT 1.6" BASE
FOXBORO O2 PAS AIR POWER POSTIONER
FOXBORO N-E27R-S2RA6-CS-N/SRC RECORDERNE27RS2RA6CSNSRC
FOXBORO N-E27R-S2RA6 RECORDER 12V 60HZ NE27RS2RA6
FOXBORO N-E11GM 25-42V-DC 200-2000PSI PRESSURE TRANSMITTERD452754
FOXBORO N3112-D15871-02 MILLIVOLT METER 0-100 PERCENTOUTPUT
FOXBORO N-2CDA-N1 SPEC 200 MICRO DISPLAY STATION ASSEMBLYD452114
FOXBORO N-2AX-VE THERMOCOUPLE MODULE RANGE 1-10V 1MEGAOHMS B485936
FOXBORO N-2AX+T N0303AS INSTRUMENTATION MODULE STACS-N/SRC
FOXBORO N-2AX+ALM-AS ABS ALARM SIGNAL CONVERTER
FOXBORO N-2AX+A2 CS-N/SRC SERIES 4736685 PROPORTIONALCONTROLLER
FOXBORO N-2AX+A2 CS-N/SRC PROPORTIONAL CONTROLLERN2AXA2CSNSRC
FOXBORO N-2ARPS05-A6 SPEC 200 120V-AC 15V-DC 5A AMP POWERSUPPLY D479963
FOXBORO N-2AP CARRIER MODULE N2AP
FOXBORO N-2AI-T2V FLOW SIGNAL VOLT N2AIT2V MODULECONVERTER B479937
FOXBORO N-2AI-T2V FLOW SIGNAL VOLT CONVERTER 5681373,N2AIT2V, REPAIRED
FOXBORO N-2AI-T2V FLOW SIGNAL VOLT CONVERTER 5681373,N2AIT2V
FOXBORO N-2AI-I3V-CS-N/SRC CONVERTER BOARD MODULE
FOXBORO N-2AI-I2V CONVERTER MODULE N2AII2V
FOXBORO N-2A0-L2C-R CS-N/SRC ISOLATOR MODULE ASSEMBLYD452062
FOXBORO N-2A0-L2C-R CS-N/SRC ISOLATOR MODULE ASSEMBLYD452006
FOXBORO N-255HM-V-M2NH-C DISPLAY STATION WITH N-2AXDISPLAY STATION
FOXBORO N-227S-1R6 CS-N/SRC SPEC 200 CHART RECORDERD452088
FOXBORO N-220S-2F6 CS-N/SRD SPEC 200 CHART RECORDERD452076
FOXBORO N0310WT 30 PIN CONNECTOR 150V-AC CABLE-WIRED455060
FOXBORO N0309ZV CONTRAST SENSOR PANEL METER
FOXBORO N0309ZV 0-100 PERCENT OUTPUT CONTRAST CONTROLSYSTEM METER D453835
FOXBORO N0309ZV 0-100 PERCENT OUTPUT CONTRAST CONTROLSYSTEM METER B479469
FOXBORO N0309RU-A NO3O9RU-A PCB CIRCUIT BOARD D485136
FOXBORO N0307UB CONTROL UNIT D399525
FOXBORO N0306WF POWER SUPPLY CIRCUIT BOARD
FOXBORO N0301AN N-2AX+INT-L MODULE PC BOARD PCB
FOXBORO N0196SC DEVIATION STANDARD RATIO METER D474875
FOXBORO N0150ZD CAPSULE ASSEMBLY REV H FOR 13H D/P CELLTRANSMITTER
FOXBORO N0149TF SET OF 2 BRACKET ASSEMBLY D490417
FOXBORO N0148TS E11 ELECTRIC MOTOR TRANSMITTER REPLACEMENTPART
