1756-TBCH现货低价模块
PLC不同接地点间存在地电位差，引起地环路电流，影响系统正常工作。例如电缆屏蔽层必须一点接地，如果电缆屏蔽层两端A、B都接地，就存在地电位差，有电流流过屏蔽层，当发生异常情况时，地线电流将更大。
屏蔽层、接地线和大地也有可能构成闭合环路，在变化磁场的作用下，屏蔽层内会出现感应电流，通过屏蔽层与芯线之间的耦合干扰信号回路。若系统地与其它接地处理混乱，所产生的地环流就可能在地线上产生电位分布，影响PLC内逻辑电路和模拟电路的正常工作。PLC工作的逻辑电压干扰容限较低，逻辑地电位的分布干扰容易影响PLC的逻辑运算和数据存贮，造成数据混乱、程序跑飞或死机。模拟地电位的分布将导致测量精度下降，引起信号测控失真和误动作。
BIRD 670 RF
NIKON 79578
ARBOR PIA-662C/DVL
MARQUIP 9601490
ADVANTECH PCM-9450
Advantech UNO-2171-P12E
KEPCO PRR 12-77M
SERVO SS604
ADVANTECH pci-2610
ADVANTECH AIMB-742
EXPRESSO S2R
NORTEL GE SX/FC 100/200
SUN MICROSYSTEM CP1500-440
BAE 3X3
Coreco XR-M130-18306
BROOKS 5964
APPLIED 9240-05125
DIVERSIFIED CAT980
CURTISS MM-5453CN/512M
BRAUKMANN F76CS-1AA
STORAGETEK 4116
PACK AK-BX551C
Black 724-746-5500
COMTROL PCI-8
PELCO ERD97P21-U
SIEMENS ELMO-G 2BH1400
TOKYO 2985-477804-11
SONY ATDEA3
APPLIED 3870-02579
BROOKTROUT 170-0747－－001
ADVANTECH 2A-100
Spellman PTV5P300X2094
ERICSSON ROJ 119 2187/14
Sony IEEE1394
ADVANTECH PCA-6179
Precision LN2-60
HP C7378-00151
NORTEL XLR12040C
Sanyo ASE10S1H
HP E3612A
BK 1760
NANOMETRICS 8200-0298
FSE F6C9A6H3
Temptronic TPO314A-1
NEI 702-1002-OQ
SMC MXQ8-75B
TRENTON 92-006022
KEYENCE GR-3500
DWYER 400-10
KLA-TENCOR 0058069-000
XILINX SP3ADSP
HEIDOLPH 2050
NORTEL 8000
ERICSSON 901 36/1
SUPERMICRO SYS-6015P-8RB
BROOKS TLG-L1-1000-S0-01EB
SIEMENS A9B10006955
APPLIED 0010-0744
APPLIED 2010-77383
Cisco 9216i
1746INT4
MOLECTRON J25LP-1
APPLIED EC74S
WDI ATF6 SA 660
DONALDSON PN/P510172
GENDEX 1240-0144
Advantech P4 - 2GHz
NANOMETRICS 8200-0339
APPLIED 0020-21665
SCHUMACHER 1495-0102C
DANAHER 31121-00
INTECH 245530
INTECH 245530
APPLIED 0040-61003
BigBand 001ENB-01
DELL 1950 - 2x
SIMCO 4011959
HP DL380 G5 4GB
HP 39301A
OPTEM 29-69-11
CISCO 10GB-LR
DANAHER 30050
APPLIED 0240-47624
USHIO UXM-S200KL 620583
1794-IB32
ADVANTECH AWS-843HTP
TOKYO 3D10-250205-11
EG&G HY-2002
TOKYO 2L87-000828-11GAS
TOKYO 2L87-000882-11
TOKYO 2L87-000882-11
QUANTUM TC-L32BX
PLANMECA 121-10-05-E
DELTA PMAC2-PC/104
Advantech MIC-3385
E2V AT71206MCR
FUSION SN/224
LANTRONIX SLC03222-02
KLA 0086469-004
MITSUBISHI PC 4000E-MELCS
IRIDEX 60010
PROPORTION PA291
Tyan B4882T46U2H-D
力士乐REXROTH R901009038
力士乐REXROTH VT3013S35
力士乐REXROTH VT3013S35
力士乐REXROTH P27784
力士乐REXROTH H160CA-40X18-ME?5
力士乐 Rexroth 4WREEM6E16J-20
力士乐Rexroth VT3000S35R5
力士乐 Rexroth 0608701018
力士乐REXROTH 109-0785-3B17-0?4
力士乐REXROTH 0607/0608-1-16-?00
力士乐REXROTH 1PF2G2-40B/016
力士乐REXROTH 3360150000
力士乐REXROTH 0513R18C3VPV8OS?M14FZB04
力士乐REXROTH HV40NRT-1
力士乐REXROTH 4WRA6E07
力士乐Rexroth R-480-243-910
力士乐Rexroth R900917194
力士乐Rexroth VT2000-52-A
力士乐Rexroth VT-11075-16
力士乐 Rexroth 9810232070
REXROTH R902087015
力士乐 REXROTH 0-608-701-017
力士乐 REXROTH VT11076-21
力士乐REXROTH 0-608-701-002
力士乐REXROTH 1LA5090-4AA91 _E9F58
力士乐REXROTH 0-608-830-158
力士乐1REXROTH VT5006-17
力士乐Rexroth DBETE-61/200G24?K31A1V
力士乐Rexroth DKC10.3-012-3-M?GP-01VRS
力士乐REXROTH RMK12.2-IBS-BKL
力士乐REXROTH PPV 202SR
Rexroth 485172/1
力士乐REXROTH A10V0140
力士乐REXROTH 01-45-2097-1
力士乐Rexroth SB301
力士乐REXROTH R911295613
西门子Siemens 6FK5201-8AA
西门子Siemens 6FC9230-8CC
西门子Siemens 6FX1191-2AA00
西门子Siemens 77-964-1
西门子Siemens 6FX1120-5BB01
西门子Siemens 6FC5270-6AX30-2?AH0
西门子Siemens 6FC3984-3RA
西门子Siemens 6FC3984-3RA
1746-IB32
力士乐REXROTH 5000 PSI
力士乐REXROTH MHD071B-061-PP1?-UN
力士乐REXROTH MKD071B-061-GG0?-KN
力士乐 Rexroth TDM3020300W0
力士乐 Rexroth MKD041b-144-KPO?-KN
力士乐 Rexroth MKD041b-144-KPO?-KN
TOOL 36049612
MEDAR 937-0009V2
INDRAMAT MHD071B-035-PPO?-UN
AB 505757
GIDDINGS 401-34229-02
ABB ACS501-005-4-00?P2
1756-TBCH