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AS-T984-004,

AS-T984-004

分散控制系统(DCS)已在大型火力发电厂广泛应用，并取得诸多经验;对于中小型的企业自备火电厂或区域热电厂，DCS系统的应用正在逐步推广，但其设计、施工及维护经验 尚有欠缺，需要不断摸索和总结。
　　其DCS系统面临的重要问题之一就是如何有效地抑制干扰，提高控制系统的安全性、稳定性与可靠性，由于技术储 备不够完善和人员运行经验欠缺，中小型火电厂更应重视此 点。电源稳定供应、信号正确分类及电缆合理敷设、接地有效 实施作为抑制干扰、提高系统可靠性的有效方法，值得广泛探讨与研究。
　　通过分析中小型火发厂DCS系统对电源、信号、接地的抗干扰要求，结合工程经验，阐述了这三方面的抗干扰设计方 案，提出了施工及维护中的一些注意事项，供项目设计、施工 以及维护参考，以便实现DCS的有效投入，保证电厂安全稳 定运行。
　　2 DCS系统抗干扰要求
　　为提高电厂DCS系统的测量水平和控制精度，保证控制 系统的安全、稳定、可靠运行，热控专业在设计、施工、维护阶段必须合理考虑DCS系统在电源、信号、接地方面的抗干扰要求。
　　2.1 电源要求
　　电源安全性是任何供电系统必须满足的最基本条件。首先在前期设计中在没选择电源和开关型号时，充分考虑所有设备最大工作电流，并留出足够余量，方便日后增加设备。其次在选择电源线路时，不仅要求根据电流容量选择合适线径，而 且要求有足够机械强度，具有防腐性，并且能够阻燃。
　　电源可靠性和连续性是DCS稳定运行的前提。DCS供电 系统除给DCS供电外，不应再接入其他系统和设备，如果无 法实现独立电源，那么可以通过加装电源隔离装置的方法(常 用UPS不间断电源)来实现。供电电源应有两路电源供电，一路应采用交流不问断电源(UPS)，另一路来自厂用低压工 作段电源。两路电源宜设自动电源切投装置，切投时间应确保 不影响控制系统的运行。任何一路电源失去或故障不应引起控 制系统任何部分的故障、数据丢失或异常动作;任何一路电源 失去都应在控制系统获得报警。
　　2.2信号要求
　　DCS的输入、输出信号线是干扰信号进入DCS的途径之一，一般来说信号越弱受干扰的影响越大。首先应对信号分类 如下：
　　①I类信号：热电阻信号、热电偶信号、毫伏信号、应变信号等低电平信号。
　　②Ⅱ类信号：0～5 V、1～5 V、4～20 mA、0～10 mA模 拟量输入信号;4～20 mA、0～10 mA模拟量输出信号;电平型/触点型开关量输入信号;脉冲量输入信号;24VDC小于50 mA的阻性负载开关量输出信号。
　　③Ⅲ类信号：24V～48VDC感性负载或电流大于50 mA 的阻性负载的开关量输出信号。
　　④Ⅳ类信号：110VAC或220VAC开关量输出信号，此类信号的馈线可视作电源线处理布线的问题。
　　其中，I类信号很容易被干扰，Ⅱ类信号容易被干扰，而Ⅲ和Ⅳ类信号在开关动作瞬间会成为强烈的干扰源，通过空间环境干扰附近的信号线。
　　为了有效减小各个信号之间的干扰，不同类型的信号电缆与DCS相连时，信号电缆的设计和布置应满足以下原则：
　　①对于I类信号电缆，最好采用屏蔽双绞电缆。
　②对于Ⅱ类信号，尽可能采用屏蔽电缆，其中Ⅱ类信号中用于控制、联锁的模入/模出信号、开入信号，必须采用屏蔽 电缆。
　　③对于Ⅳ类信号严禁与I、Ⅱ类信号捆在一起走线，应作为220 V电源线处理，与电源电缆一起走线，有条件时建议采 用屏蔽双绞电缆。
　　④对于Ⅲ类信号，允许与220 V电源线一起走线(即与Ⅳ类信号相同)，也可以与I、Ⅱ类信号一起走线。但在后者情 况下Ⅲ类信号必须采用屏蔽电缆，最好为屏蔽双绞电缆，且与 I、Ⅱ类信号电缆相距15cm以上。
　　⑤屏蔽电缆的屏蔽层必须只有一点接地，并且要接地 良好。
　　⑥绝对禁止大功率的开关量输出信号线、电源线、动力线等电缆与直接进入DCS系统的I、Ⅱ类信号电缆并行捆绑。
　　⑦绝对禁止采用一根多芯电缆中的部份芯线用于传输I类 或Ⅱ类的信号，另外部分芯线用于传输Ⅲ类或Ⅳ类信号。
　　⑧严禁同一信号的几芯线分布在不同的几条电缆中(如三线制的热电阻)。

QIPA-122 , YT212001-AMS , WTMC8530UC , NT17 109-0743-4a01-00

VT1700-S-11 , 4WRTE16V1/125L-42/6EG24K31/A1V , PIX-VAC , E58-30DPS280-GLP

HFD-3225L , DH363U , ASY0673 , 10316H5855B

ECN3301CAA , HP 54645A , HP E1445-69201 , TRICONEX TRICON 5351

XYCOM 3406 , XYCOM AGP3450-T1-D24 , CACR-SR05TZ6SF-E , DE8401365

JPDC-A001 , SGMAH-01ABA4B , USASEM-02YRW12 , TEXAS INSTRUMENTS 2702891-0002

1732P-8CFGM8 , 1791-8AC , IC641VPS325 , IC647TPD915

IC698CPE010 , 140DDI85300C , STBSPU1003 , 3GK90KA

PH266L-31B-C5 , 3BDH000031R1 , 427Q4491 , 6240BP10810

AO610 , DSTA160 , IMAOM01 , P18013-05031400TZA305

T4N150TW , USB-5820-AE , Bosch 183-18-1193-0 , REXROTH 1815503095

R900938039 , WS-X6408A-GBIC , CB00027 , JD3200

E50DS1 , C361FNC1 , LSB360250E , 9-2756-3 CUTLER HAMMER

HP 5086-1702 , HP A4837A , TRICON 3700 , XYCOM 4860A

XYCOM 4715T-1300-2000-DVDW-XP , CACR-HR10BAB , CPCC-PP10C , JANCD-SP20B-02

SGDS-A5F01A , USAFED-09DA1SX , TEXAS INSTRUMENTS 22225060001 , TEXAS INSTRUMENTS U08N

1771-SDN , IC600BF942 , IC647PATSIMC , IC695STK001

6ES7416-3FS06-0AB0 , TSXRAZ01 , 256126A1 , KBLM5120-A

ABB283-005 , 3HAC0468-1 , 6008BZ10000D , ACH401600422-A0AE0000

DSQC345 , HESG446869R1 , NRI002 , SDTR16DB

PCM-3530 , BOSCH 041612-108401 , MAC090C-0-GD-4-C , 081WV06P1V1016KL

VIC2-2E/M , E57MAL12A2 , MP-4000 , E58-CAL-18T111-R2

CHB250 , 66D2001G11 , E50-KL377 , HP 3478A

HP 8657D , HP E7317B , XYCOM 70203-001 , xycom 830064-C-A

XYCOM XVME-505 , CIMR-V7AA20P1 , JANCD-ESRR01-2 , SGDH/ST-0.6-CABN

UAASKB-11LYA11A , D4-06B , TEXAS INSTRUMENTS 505-8106 , 1769-L23E-QB1B

IC220ALG220 , IC647MGM005 , IC693NIU004 , 6ES7 522-1BL10-0AA0

BMXDDM16025 , 1912RA001100000STD , DFC5128P , UD2115A

3HAB2214-1/1 , 58913669B , A260-30 , DSDP140A

GN5710 , NKAI01002 , S1N070TL , YT213001-AB/2

W124 1995 E300D , MHD093B-035-PP0-BN , VT5011 S45 R1 , HDS03.2-W100-HT25

WS-C3560E-24PD-S , 6-45-2 , EGS3125FFG , CPSH2480DESG

92-01406-01 , 2050A12G05 , HP 16520A , HP 85032B

HP J9536A , XVME-979/4 , GP270-SC31-24V , XYCOM GP230-IS11-0

CIMR-G5U45P5 , JAMSC-B1062 , S86008-3-12 , SGMPH-04AAAAC

5TI-524626-06-?63 , TEXAS INSTRUMENTS 505-2590A , 1756-PLS , IC200TBX110

IC647ASC001 , IC690ACC900 , 6EP1337-3BA00 , TSXCTY4A

05MA21 , BLS540A-24LA , PK5913BW , 3BUR001455R1

57310001-T , 70EA05A-E , DI814 , GJR2268800R21

NASM04 , QT01B , YB560103-CH/10 , BOSCH REXROTH 0811405159

SD.B5.250.020.15.000 , P6810-3180 , MAC093B-0-JS-2-C/130-B-0/S005 , SPA-10X1GE-V2

S20N11S03N , FDB3125A02S22 , D500-ECM16 , A11DNO

BPFD3125 , HP 08753-60209 , HP 80601A , HP E4433A

Triconex 2660/63 , XYCOM 2880063-01 , XYCOM CA7-WPG19-01 , CATCACR-HR10BABY5

ETC617211 , JZNC-XPP04B , SGMGH-05ACA6C , Yaskawa 87350-11000

TEXAS INSTRUMENTS 405-MIU , 1753-IB8XOB8 , 1797-TPS , IC646PEW110

IC660EBA104 , 6ES7412-2XG04-0AB0 , TSXP57203M , ABB 501576

A4921-9215KE , PK264B2-SG9 , 3BSE-004265R1 , 57120001-KN

6633171-1 , C484G9 , EHB63200L , K7FCH

PS-3/12/16BP , XK16 , PCI-1710UL , BOSCH KTS 520

REXROTH 0-608-800-001 , TM-068204-03090 , 3560V2-24TS , CH260

HFD3100 , DH-362FGK , AN56DNOAB , 10316H-281C

CE15DNS3AB , HP 54810A , HP E1473A , TRICONEX TRICON 8302A

XVME-655 , XYCOM AGP3500-T1-AF-CA1M , CACR-SR10BC1ES-Y262 , DF7000062

JRMS1-B-1027 , SGMAH-02AAAHB61 , USASEM-08CY21 , TEXAS INSTRUMENTS 30501H

1734-EPAC , 1791DS-IB4XOW4 , IC646APS30050 , IC647TRT075

6ES7 212-1AB23-0XB0 , 140DAO85300C , 171CCC96020C , 4CSM-201

PH268-21-C76 , 3BHE003379R0005 , 468T2675 , 6245BP10720C

APIOS-02 , DSTC190 , IMASM04 , PAB02

TA450DU235 , PCM-3614 , AL0832X , Rexroth 337 500 056

R165141220 , WS-X6148A-GE-45AF , C320TP1 , ITE-K-600

E50AW1 , C335KA1T1 , C832KNI , 9-1887-7 CUTLER HAMMER

HP 5086-7408 , HP A5191A , Tricon Triconex 3664 , XYCOM 70686-007

XYCOM 5015KPMT-24V , CACR-IR , CPCR-FR01RB , JANCD-TU05

SGDV-R70A01A , USAFED-13C22K , TEXAS INSTRUMENTS 2459452-0001 , TEXAS INSTRUMENTS U25N

1775-BH , IC600CB507 , IC647PCL500 , IC697ACC723

6ES7441-1AA03-0AE0 , STBNIB1010 , 258188A3 , KXM5120-AB

29118337B , 3HAC1462-1 , 6014BZ10000 , ACH501-010-4-00P2

DSQC361 , HESG447060R1 , NTAC-02 , SK415-037-M

PCM-9370 , G3ACPW5CP , 4WRE-6W08-12/24K4/M , 4WEH22Q7X

WIC-1ENET , E51CLS1 , HMCP050G2 , E58-30TD250-GD

CE55BNS3T , CUTLER HAMMER 6-331-39 , 10250TS36STAMP , HP 3499B

HP 8683B , HP 70910A , GP370-LG11-24V , XYCOM 126320

XYCOM XVME-661/714 , CIMR-V7AM22P2 , JANCD-FC200 , SGDH-04AE

UCV000491 , GMT12-40BL , TEXAS INSTRUMENTS 505-CP2572 , 1769-L35E

IC220EBI001 , IC647MOP001 , IC693PWR322 , 6ES7 155-5AA00-0AC0

BMXAMM0600 , 1944638A1 , DFU507A , UDK5114N-A13

3HAB2425-1 , 5SDA10D2303 , A300-30 , DSDX-110

GNT0158200P0001 , NKLS01-10 , S202K32 , YT352001-AB

BOSCH B-830-303-191 , VT-HACD-500-1X/VX/7871 , P68186-3080 , PUMP-AA10VSO71FED/30R

C3845-VSEC/K9 , MS25032-1 , EDB3225 , CPS100208YAN

92-00756-00 , 1480B6501 , HP 1660CS , HP 85046B

HP M1580A , 4117-0000000002001 , GP37W2BG4124 , XYCOM GP2500-TC41-24V

CIMR-G7B47P5 , JAMSC-B1075 , SGD-01AP , SGMPH-15AAA6E

5TI52586384 , TEXAS INSTRUMENTS 505-4032A , 1756-TC15 , IC200TBX320

IC647AUR002 , IC690CDR002 , 6SL3210-1PE32-5UL0 , TSXETW330T1

07CS61 , BXM6200-GFS , PK599BHW , 3E-032176

57310290-BU , 716799A11 , DLM01 , GJR2280700R3

NBRA-653 , RA0446802 , YL261001-FD , Bosch 0-001-510-035

048412-108401 , R900909570 , PPC-R02.2N-N-L2-T2-NN-FW , SFS-7008-4X048-SK9

TB65-6 , FDB3015LS , D500-CCR200 , A10DG-I-EB

ED3225L , HP 10221A , HP 8116A , HP E4440-60217

Triconex 3505E , XYCOM 3512KPT , XYCOM CA-CABLE-100M , CDBR-4220B

ETK00072002-82 , JZRCR-XPU05D , SGMGH-13DCA61 , Yaskawa AO-08

TEXAS INSTRUMENTS 500-2101 , 1756-A13K , IC200ACC313 , IC646PMESCH

IC660EBS101 , 6ES7422-1FH00-0AA0 , TSXMFPP128K , ABB 29089167

A6395-042 , PK266-01B , 3BSE005028R1 , 57120001-PM

6634154G1 , C604R30 , EHFA202 , KT4PFVR

PSR3-600-70 , XT377E , PCI-1724U , 31R-PRC62-K68

REXROTH 047963-103401 , R911268754 , PWR-SCE-AC , 1775T-TBX

HFD3040L , DH-361NGK , AN16GNOA , 10316H-16C

SVX010A1-2A1B1 , HP 5517A , HP E1497A , TRICONEX 3002

PMXV-230 , XYCOM AGP3550-T1-AF , CACR-SR10SZ1SF , DF8100494

jrmsi-bi027 , SGMAH-04AAA4C , USASEM-10HS23 , TEXAS INSTRUMENTS 305-02B

1734-IE4C , 1792D-4BV4D , IC646MBP001 , IC647UDCC

6ES7 222-1EF22-0XA0 , 140DAI75300 , 170ADI34000 , 4GK60K

PH296-01 , 3BHT300003R1 , 48931006-AV , 624EGF21010GL231

ASC310-03U-25A4-4 , DSTD132 , IMCOM04 , PCM-30

TB55132100F05 , PCL-726 , AA4VG250HWLD1 , REXROTH 0-608-830-248

DB-30-2-30/315XU/5 , WS-X45-SUP7-E , C1000A2G , IQ230

E50AR16P , C320TD , 1755K PMPP 1700 , 6-65-2 CUTLER HAMMER

HP 5086-7583 , HP A6070A , Tricon 3005 , 81987-001E

XYCOM 510084 , CACR-IR202020C , CPCR-IN02C , JANCV-MFC06

SGLTM-80405R-AM13 , USAFED-20CA2SE , TEXAS INSTRUMENTS 2462158-0025 , TEXAS INSTRUMENTS UCC2806DW

1783-MX08T , IC600CB537 , IC647PCMS25 , IC697ACC803

6ES7468-3AH50-0AA0 , STBDAI5260K , 26390603-P , KXPM6180GD-AB

302B1620 , 3HAC18159-1 , 6024NR14130B-7192 , ACH550-UH-08A8-4

DSQC545E , HESG447433R0001 , NTCF23 , SL11

ADAM-4015 , Bosch 0 811 405 063 2STV , H-4WEH25C60/6AW120-60NS2Z45V , 1PF2G330/032RA07MS

OPX/KSU , DN55MR16I , MDL3800F , E57SAL30T110ED

CE15PN3A , 6041H204A , QC3FP , HP 35676B

HP 87222E , HP 81950A , 99225A-001 , XYCOM 1510-3000-2000-DVDW

CPS-18FB , CIMR-V7AM47P5 , JANCD-FC300B-3 , SGDH-10AE

UGCMED-15-OK63 , OPA2131UA , TEXAS INSTRUMENTS 510-7105 , 1769-OF4CI

IC220MDL661 , IC647MQPU01 , IC693UDR010 , 6ES7 954-8LF02-0AA0

BMXNOE0100 , 1946973A3 , E5D-400-312-IH , UDK5128NW2

3HAB3309-1 , 5SDD50N5500 , A40-30-01-37 , DSMB124

GNT7071221R0001 , NKLS11-3 , S283-K2 , YXC-110

BOSCH 1070056515 , KDV-1.3-100-220/300-115 , LFA 16 H2-70/F/12 , R900900988

C2921-UCSE/K9 , QCHW2100 , ED2225L , CP01219

92-00414-02 , 1353H1111 , HP 16702A , HP 85060C

HP N1204C , 9450 XYCOM , GP570-TC31-24V , XYCOM GP270-SC31-24V

CIMR-H3.7B.D04 , JAMSC-B2110AV , SGD-02BH-PY5 , SGMS-10AWA-HL11

5TI-55020 , TEXAS INSTRUMENTS 505-4232A , 1760-L12BWB , IC200UAL005

IC647BSP010 , IC693ACC300 , 6ES7 211-1BE40-0XB0 , TSXWMY100C

07DC91 , C4441-9012 , PMM33BH2 , 3GAA131002-BDA

57330001-Y , 720095-1 , DO890 , GJR5138800R0003

NC1S02 , RC610 , YL787001-G , DHD3014UC

BOSCH 914-6 , REXROTH 3842503783 , ASM10-T , PVDM-256K-20

SVX060A1-2A1N1 , FD3225K , D40R-PA-Q2 , A10BG0

CB-0120 , HP 10895a , HP 8154B , HP E4854A

Triconex 3603T , XYCOM 70401004 , XYCOM CF8G_PS365X_T42 , CIMR-15AS2

ETP608471 , JZSP-CLP20-05 , SGMGH-30DCA61 , Yaskawa CMPC-CM33DE

TEXAS INSTRUMENTS 500-2151A , 1756-BATA , IC200ALG263 , IC646TBLC001

IC660HHC005 , 6ES7441-2AA04-0AE0 , TSXMRPP224K , ABB 52700141

ASC46AK , PK266-E2.0A , 3BSE006385R1 , 57160001-A/7

6634256A1 , CH19000070 , EHN145 , L700783C1

PST250-600-70 , Y5FL2125ABB , PCI-1752USO , 0608PE0410

R911283998 , 11R-NSD62K02 , PWR-2700-AC/4 , 87-01713-02

HFB3480ML , DH-321FGK , AGSCH120N030040 , 102716-4

10250T7007S , HP 6023A , HP E1615B , TRICONEX 3604A

XYCOM 70113-003 , XYCOM AGP3600-T1-D24-FN1M , CACR-SR15-BB1AF , DF8200709

JRMSP-120CPS111000 , SGMAH-08ABA41 , USASGM-02E , TEXAS INSTRUMENTS 30505NH

1734-OA4 , 1794-ACNR15 , IC646MDA700 , IC647WFLCWSP

6ES7 241-1AA22-0XA0 , 140DAI34000 , 170ADO83030 , 4GN7.5KA

PH533HG1-NA-A4 , 3BHT300054R1 , 48990001-FE , 6353C88H11

AV42 , DSTD320 , IMDSO02 , PCZ28

TB561J25100F10 , PCLD-785B , 32R-NSF52F001DM , 4WE10H33/CW110N9K4

DR10-5-52/315Y/12 , WS-X4232-L3 , ARD420T , E57SAL18A2

E40IDEMO , C306-NN3 , 15CLE250E , 505C806G13

HP 5086-7838 , HP A6805B , Tricon 3704E , XYCOM 83204-004

XYCOM 83194B , CACR-PR01AE4ESY6 , CPCR-MR-052 , JASP-AZ001B

SGM-01A3YH21 , USAFED-25XA2T , TEXAS INSTRUMENTS 2490871 , TI315

1783-US8T , IC600CR620 , IC647PFL050 , IC697ALG441

TSXMRPC003MC , STBDDI3425K , 264HSPSBA1E6B1N2 , L0177-M

31D01634A01 , 3HAC3180-1 , 6053CZ10006A , ACS-141-K75-1-U

DSQC-123B , HIEE300936R0101 , NTLS01 , SM1006S/B20/0000/22/STD

4H210-08 , BOSCH 1070909227 , H160CA-50X36-ME5-V-PU-PU-O-G-50-S-A-11-RF3 , VT2000S46/2

3825-WAE/K9 , DH361FGK , A10KNDO , E57-LBL-12A2E

CE15GNS2AB-T16 , 5ACLE-100E , 92-00804-02 , HP 366165-001

HP 8756A , HP 85052D , XVME 135 , XYCOM 162U

300262-2006 , CIMR-V7CU20P74 , JANCD-GCP02 , SGDH-60DE-OY

UGCMEM-15-MC44 , PM550-110 , TEXAS INSTRUMENTS 5-24VDC , 1770-CD1

IC220PWR011 , IC647MTLC , IC694ALG392 , 6ES7 592-3AA00-0AA0

BMXXBP0600 , 194841A41-13801F10 , EM599H-NB , UDX5105

3HAB4259-1/4 , 5SDF03D4502 , A75N3-30-11-84 , DSMB-144

GVT3605792CMA32 , NKPL012 , S3H225DWAS8 , YYT1020

CFD-700-HP , BOSCH SD301 0608830194 , REXROTH 1502-4-4065 , J642-313

C28P-EDR-A , QBGF2020 , ECN2411CHE , C320KA2

9-1891-26 , 1173A300 , HP 1672D , HP 8510B

HP N2590A , 2050 XYCOM , NP2002000T , XYCOM GP-377R-TC11-24V

CIMR-J7AAB0P7 , JAMSC-B2603V , SGDA-01APP , SGMS-20ASABC

6ES72913BX000XA0 , TEXAS INSTRUMENTS 5054408 , 1760-L20BBB-EXND , IC200UDD112

IC647CGMS35 , IC693ACC316 , 6ES7 221-1BH32-0XB0 , TSXSCY21601

07KR51-A3.6 , C5556-9212 , PX243-02A , 3HAA3563-AUA/1

57350001-CN/2 , 7220093-1 , DPU2000 , GJR5213300R000607NG81R6

NCTM01 , RE520 , YM316001-NB/3 , R911298371

VG4-323-ECS0W , VTS0104-1X , 1070080542-404 , PA-MC-8E1/120

SV9F30AC-5M0B00 , FD3090 , D320RAK0BB , 9969D96G04

C300CNA3 , HP 11352-66592 , HP 81633B , HP E5071-65008

Triconex 3674 , XYCOM 81862-103Q , XYCOM EX-EX-SITE-UPGRADE , CIMR-E7U4011

ETX710053 , JZSP-CSP01-03-E , SGMGH-55DCA61 , Yaskawa MI004

TEXAS INSTRUMENTS 5005007 , 1756-DMF30 , IC200ALG432 , IC646TBLSS1000

IC660MLA103 , 6ES7461-3AA01-0AA0 , TSXRKY8 , ABB 57275847

ASD13A-ADN , PK268-02A-C51 , 3BSE008520R1 , 57160001-AZ

6635499D1 , CI545V01 , EK150C4P-PL , LLC42A10A

PTSB570-600-70 , YB560103-BD , PCIE-1730H , SE-C4.170.030-14.000

3WE-10-B31 , A6VE160EP1/63W-VZL020HB , RCP2-SA6-I-PM-6-600-P1-M , SGDN100

GMCP015E0C , DG-324NGK , AE17ANS0T1FH , 10250T-963-3X

E57LAL18A2SA , HP 6060B , HP E1671A , TRICONEX TRICON ICM4101

XYCOM 98942-001 , XYCOM AGP4106G1D24 , CACR-SR15BY1SS-Y48E , DF8203078-DO

JRMSP-PS60 , SGMAJ-A5CAA2C , UTMAH-B12BDYR8 , TEXAS INSTRUMENTS 305-14ABM-TM

1734-OV8E , 1794-IA16 , IC646MPMU01 , IC648MNT101

6ES7 214-2BD23-0XB8 , 140CRA31200 , 170AAI03000 , 4RK25GN-AM-115

PH-554-NA , 3BSC640001R1 , 4TB5203-0126B , 6400M97

B206892 , DSTDN001 , IMHSS02 , PFEA111-20

TB84EC1000321 , ADAM-3925 , 63W-VZL020HB , MKE047B-144-KG1

DB20G2-44/200V/12 , WS-SUP720-3BXL , AN16NN0A , HQP3100H

E30-KP12 , C25DND325A , 1551E-8504 , 37433 CUTLER

HP 5087-7020 , HP A7134B , TRICON?3005? , XYCOM 91195A

XYCOM 9000-EXFQACCT845 , CACR-PR03AH3FU , CPCR-MR05C-Y20 , JBAM-G002N

SGM-01U312 , USAFED-OSFBICE , TEXAS INSTRUMENTS 24-921-448-008 , TIL311

1784-PCM4 , IC600KD516 , IC647PME100 , IC697CBL709

OFSCSPESU , STBDDO3600K , 2668180-10 , MOEM566-NA

31D02632A01 , 3HAC4804-1 , 6129863-1C , ACS150-03E-03A5-2

DSQC-236C , HIEE450848R1 , NVAR36 , SNAT-02

MIC-2760 , BOSCH 1070-062065-107 , REXROTH 041347-110401 , REXROTH 0822341017

2911-V/K9 , D50AOM210V , LT3350T , E57-FAL18A2SA-M

CE15EN3BB , 55PKHX , ECN1611EAA , HP 37719A

HP 8902A , HP 8714B , 3515-T XYCOM , XYCOM 3000-CBL-10V

4S064-330 , CIMR-V7DT20P2 , JANCD-GIO02B , SGDL-02/AS

UGHMED-12GG20F , PM550-5040 , TEXAS INSTRUMENTS 530C-6202 , 1770-XE

IC610CHS101 , IC647N700 , IC694MDL231 , 6ES7155-6AU00-0BN0

BMXRWSFC032M , 1FT3078-5AZ21-9-Z , FBL5120AW-15 , UDX5114NA-M

3HAB5761-1 , 5SDF13H4501 , ABB 086363-002 , DSMD122

GVT-360-8491/CMA39 , NKTU0113 , S4CPLUS , YYT-102G

MDD093B-N-20-N2L-110PBO , DMX-1X/4WRSE10E , 4WE10EB31 , D061-628C

C2801-VSEC-SRST/K9 , PS256A-04B1 , ECN1811EJA , CN55AN3AB

9-1887-8 , 10316H54 , HP 16902A , HP 85132-60004

HP N4430B , 9450-2486616010000 , XYCOM PM101736 , XYCOM GP450-EGM2-D24

cimr-j7am41p5 , JAMSC-B2712 , SGDA-02ASP , SGMSH-10ACA6C

6MT12-40AL , TEXAS INSTRUMENTS 505-4608 , 1761-L16NWA , IC200UDR006

IC647CSPR005 , IC693ACC336 , 6ES7 231-5ND32-0XB0 , TSXCBY1000

07KT98E2 , C6591-9212 , PX243M-03BA , 3HAA2121-2

57360001-HC , 750191000B , DS260-C , GJR52302

NDCU-22 , REM543CM214AAAB , YPK117A , Bosch PSU 5100.100L

MTS-P01.2-D2-B1-S4-NN-NN-FW , 4WRE 10 E32-10/2424/M , VMA-21/KR001-D , NME-APPRE-502-K9

B10CN0F , FD3025V , D26MRD43W1 , 9-91-10

BPONI , HP 1158A , HP 82350A , HP E5970A

Triconex 4210-3 , XYCOM 8320/94321-002 , XYCOM EXM-ARI8LRJ , CIMR-F4011

G5M51P5 , LKEB-42P2 , SGMJV-04AAA61 , YMC000387

TEXAS INSTRUMENTS 500-5016 , 1756-ESMNSE , IC200CHS015 , IC646TBLSS75K

IC660MLR101 , 6ES7952-0KH00-0AA0 , TSXPSY8500MC , ABB 57413077

ASD24C-A , PK296-01AA , 3BSE009616R1 , 57160001-GV

6636448A1 , CI820 , ES100-9594 , LS914EIR6300-Z

QDMB130 , YB560103-CE24 , TBM124-10038 , REXROTH R901009038

4WEH22U-41/10LNS2/5 , R902059758 , WS-C3560E-24PD-E , XTPR040DC1

GHC3020 , D87ME30A2 , AE16CNS0BC , 10250T-579C63-?1

10316H2159 , HP 6542A , HP E1694A , TRICONEX TRICON 8300

XVME 540 , XYCOM APL3600-KA-CD2G-2P-1G-XM250-M , CACR-SR15SZ1SS-Y22 , DF9200676-E0N

JUSP-DCP 60A , SGMAS-02ACA2C , UTOPI-150YT , TEXAS INSTRUMENTS 305-1NIM

1746-HCA , 1794-IE12 , IC646MPSS99 , IC655APU510

6ES7 231-0HC22-0XA8 , 140CPU67160 , 170ANR12091 , 5GK25K

PH596-B , 3BSC950022R5 , 503TB01260A0000-1000-75212 , 6611278-1

B9-30-10 , DSTV110 , IMMFP-02 , PGM03

TC530K01 , PCLD-880 , BOSCH 1070081259-102 , 262-220-400-0K0

4WE6HA6X/EG24N9K4/ZV , WS-C4507R-E , AN16DN0AB , HMCPS003A0

E30EE , C10CN3 , 1491D45G02 , 12936 CUTLER HAMMER

HP 5087-7238 , HP ADA400A , TRICON TRICONEX 3611E , PCS82034B

XYCOM 9450-2343300001200 , CACR-PR07AC3FR , CPCR-MR-152GE , JEFMC-HNCO3

SGM-02A3FJ33 , USAGED-09-ML21 , TEXAS INSTRUMENTS 2497993 , TMS320F240PQA

1785-L20E , IC600LX616 , IC647PRTADOC , IC697CMM712

NWBM85D008 , STBACI0320 , 2668182-128/1 , P0074-9212HE

35416AB8 , 3HAC5979-1 , 61511-0-4000002CM1,P61511-0-4000002 , ACS350-03U-02A4-4

DSQC-266G , HUWI-ABB-I , OBC1000-24VDC , SNAT-7120

MIC-3756 , 032872-1037 , 109-0785-3B17-04 , VT 5002S24/R1

2821-V/K9 , D26MR132A , E50SA6P , E57-12LE06-A1A

CC3225 , 50BKFD225T , MCV5-10-C-A-100-12T-25 , HP 3852A

HP 8935E , HP E4426B , 3612-KPM , XYCOM 3115-1200-256-XP

721-205/026-000 WAGO , CIMR-VMC25P5 , JANCD-GSPIO , SGDM-02ADA

UGJMED-80MA2OF , PM550925 , TEXAS INSTRUMENTS 54555581012 , 1771-CE

IC610MDL110 , IC647NEA000 , IC694MDL645 , 6ES7131-6BF00-0AA0

BMXFTW1001 , 1SAF328853R1000 , FBLD120SW , UHG100-2C

3HAB7215-1/03 , 5SGA3045J0015 , ABB 5692435-R , DSPC154

HEDT300379R1 , NKTU018 , S5H400MW-2S4W , CPCI-R6780

BOSCH 0445010091 , AA10VSO45DRV/31-PKC62K01 , R978908807 , GT-010061-00440

ASA5520-AIP20-K9 , D200PR4C , ECN1611AAC , CN15DN3

9-1510-30 , 10250T-C22 , HP 200D , HP 85330A-K32

HP N8974A , XYCOM 97011 , XYC5015KPM , XYCOM GP570-TC31-24V

CIMR-L5JJ4015 , JAMSC-B2807V , SGDA-04ASP , SGMSH-30DCA6C