为了克服DCS系统的技术瓶颈,进一步满足现场的需要,现场总线技术应运而生,它实际上是连接现场智能设备和自动化控制设备的双向串行、数字式、多节点通信网络,也被称为现场底层设备控制网络（INFRANET）。和Internet、Intranet等类型的信息网络不同,控制网络直接面向生产过程,因此要求很高的实时性、可靠性、资料完整性和可用性。为满足这些特性,现场总线对标准的网络协议作了简化,省略了一些中间层,只包括ISO/OSI7层模型中的3层：物理层、数据链路层和应用层。

BENTLY NEVADA 18745-02 USPP 1874502

BENTLY NEVADA 3300/16-02-01-?02-00-00-00 USPP 33001602010200?00

BENTLY NEVADA 128240-01 NSPP 12824001

BENTLY NEVADA SNAPSHOT 2 44953-01


Bently after James Pollard 1828 LG Folio. The Birmingham Tally-Ho! Coaches

Enlarge
BENTLY NEVADA 30001-00-20-18?-02 NSPP 3000100201802

BENTLY NEVADA 300-00-00-32-1?8-02 NSPP 3000000321802

BENTLY NEVADA 3300/12-A01-B2?0-C00 USPP 330012A01B20C0?0

BENTLY NEVADA 3500/92 NSPP 350092

BENTLY NEVADA 330550-A06-B00 NSPP 330550A06B00

BENTLY NEVADA 30000-00-08-18?-02 NSPP 3000000081802

BENTLY NEVADA 30000-00-08-36?-02 NSPP 3000000083602

BENTLY NEVADA 30000-00-16-36?-02 NSPP 3000000163602

BENTLY NEVADA 30000-00-20-36?-02 NSPP 3000000203602

BENTLY NEVADA 30000-00-30-24?-02 NSPP 3000000302402

BENTLY NEVADA 76683-90 USPP 7668390

Bently Nevada 2201/02-02 System Monitor *GOOD PULL*
Designed for use in A/B 1771 I/O Racks


Bently Nevada 2201/03-03 4-Channel Monitor *GOOD PULL*
Designed for use in A/B 1771 I/O Racks


BENTLY NEVADA 4452-02 NSPP 445202

BENTLY NEVADA CA-90100-03-03?-06-03-02-01-0?1-02 USPP CA901000303060?30

BENTLY NEVADA 78462-01M USPP 7846201M

BENTLY NEVADA 90482-01 USPP 9048201

BENTLY NEVADA 170180-01-00 NSFP 1701800100

BENTLY NEVADA 170180-03-00 NSFP 1701800300

BENTLY NEVADA 3500/92 USPP 350092

BENTLY NEVADA 77589-01-90 NSPP 775890190

Bently Nevada Velocity Seismoprobe 16699-01-05-03 (5208)

BENTLY NEVADA 30000-00-38-36?-02 USPP 3000000383602

BENTLY NEVADA 30000-00-40-36?-02 USPP 3000000403602

BENTLY NEVADA 90225-22-02-01?-01-02-02-01-0?1-02 NSPP 90225220201010?2B

725500401, Bently Nevada Power Supply 7200 120VD Input

BENTLY NEVADA 79492-01 NSPP 7949201

BENTLY NEVADA 170180-01-00 NSPP 1701800100

BENTLY NEVADA 170180-02-00 NSPP 1701800200

BENTLY NEVADA 84140-01 NSPP 8414001

BENTLY NEVADA 90200-03-01-02?-02-01-01-02 USPP 90200030102020?10

BENTLY NEVADA 90200-22-03-01?-02-02-01-01-0?2 USPP 90200220301020?20

BENTLY NEVADA 90225-22-02-01?-01-02-02-01-0?1-00 USPP 90225220201010?20

BENTLY NEVADA 90225-22-02-01?-01-02-02-01-0?1-02 USPP 90225220201010?2B

BENTLY NEVADA 90225-22-04-06?-02-02-02-03-0?1-02 USPP 90225220406020?20
BENTLY NEVADA 90225-22-04-06?-02-02-02-03-0?3-04 USPP 90225220406020?2B

BENTLY NEVADA 90225-23-03-05?-01-02-02-03-0?1-02 USPP 90225230305010?20

BENTLY NEVADA 90225-23-03-05?-02-02-02-03-0?1-02 USPP 90225230305020?20

BENTLY NEVADA 90225-24-02-01?-01-02-02-01-0?2-03 USPP 90225240201010?20

BENTLY NEVADA PWA90482-01 USPP PWA9048201

BENTLY NEVADA 79492-01 USPP 7949201

BENTLY NEVADA 24134-02 NSPP 2413402

BENTLY NEVADA 3500/32 USPP 350032

BENTLY NEVADA 19000-00-07-36?-02 NSPP 1900000073602

BENTLY NEVADA 19000-00-20-36?-02 NSPP 1900000203602

NEW BENTLY NEVADA/GE 161957 PIM POWER INPUT MODULE SPARE SERIES 3300 PART 46498


BENTLY NEVADA 7200-RVXY-R USPP 7200RVXYR

BENTLY NEVADA 3300/10 USPP 330010

BENTLY NEVADA 21747-080-01 NSFP 2174708001

BENTLY NEVADA 72108-01-02 USPP 721080102

BENTLY NEVADA 72358-XX USPP 72358XX

BENTLY NEVADA 72836-01 USPP 7283601

BENTLY NEVADA 72869-02 USPP 7286902

BENTLY NEVADA 72870-01 USPP 7287001

BENTLY NEVADA 72870-03 USPP 7287003

BENTLY NEVADA 72870-53 USPP 7287053

BENTLY NEVADA 21504-00-40-10?-02 NSPP 2150400401002

BENTLY NEVADA CA-90125-02-03?-06-02-02-03-0?1-02 USPP CA901250203060?20

BENTLY NEVADA 19000-00-90-12?-02 USPP 1900000901202

NEW Bently Nevada 7200 Vibration Monitor Meter Card Assembly 72870-04


BENTLY NEVADA 21500-00-20-10?-02 NSPP 2150000201002

BENTLY NEVADA 21500-00-32-10?-02 NSPP 2150000321002

BENTLY NEVADA 21500-00-40-05?-02 NSPP 2150000400502

BENTLY NEVADA 21504-00-28-10?-02 NSPP 2150400281002

BENTLY NEVADA 21504-00-32-10?-02 NSPP 2150400321002

BENTLY NEVADA 21504-00-36-10?-02 NSPP 2150400361002

BENTLY NEVADA 21504-00-40-05?-02 NSPP 2150400400502

BENTLY NEVADA 21504-00-52-10?-02 NSPP 2150400521002

BENTLY NEVADA 21504-00-60-05?-02 NSPP 2150400600502

BENTLY NEVADA 21504-00-60-10?-02 NSPP 2150400601002

BENTLY NEVADA 21504-00-68-05?-02 NSPP 2150400680502

BENTLY NEVADA 21504-00-68-10?-02 NSPP 2150400681002

BENTLY NEVADA 72626-22 NSPP 7262622

BENTLY NEVADA 72608 NSPP 72608

BENTLY NEVADA 21504-00-08-05?-02 NSPP 2150400080502

Bently Nevada 72201-01-04-01?-01-01-15 VIBRATION & PROX

BENTLY NEVADA 16699-20-05-03 NSPP 16699200503

BENTLY NEVADA 7200-RVR USPP 7200RVR

BENTLY NEVADA 21504-24-64-05?02 NSPP 2150424640502

BENTLY NEVADA VELOCITY PROBE 330525 *NEW*

BENTLY NEVADA 7200-RVDP-R USPP 7200RVDPR

BENTLY NEVADA 21747-080-01 USPP 2174708001

BENTLY NEVADA 72208-02 USPP 7220802

BENTLY NEVADA 72308-01 USPP 7230801

BENTLY NEVADA 84143-01 USPP 8414301



BENTLY NEVADA 136188-01 USPP 13618801

BENTLY NEVADA 81545-01 NSPP 8154501

Bently Nevada 124534-01 Custom Proximitor

Dierks Bently Autographed Signed Guitar & PSA/DNA Proof UACC RD COA


Dierks Bently Autographed Signed Pearl Guitar & Proof PSA/DNA UACC RD COA


NEW Bently Nevada 3300 Proximitor Sensor 330100-50-05

2201/02-01 Bently Nevada for Allen Bradley PLC 5 N3


BENTLY NEVADA 72052-01 USPP 7205201

BENTLY NEVADA 72072-01 USPP 7207201

BENTLY NEVADA 82365-01 NSPP 8236501

BENTLY NEVADA 133300-01 USPP 13330001

Bently Nevada 72301-02-04-01?-01-01-15 PC Board

BENTLY NEVADA 20929-02 NSFP 2092902

BENTLY NEVADA 9002637-01 MONITOR SYSTEM SERIES 9000 PLC MODULE 53188


Bently Nevada 3500/60 Temperature Monitor 350060 Temp


BENTLY NEVADA 89968-0050-02-?01 NSPP 8996800500201

BENTLY NEVADA 330180-51-00 NSFP 3301805100

BENTLY NEVADA 33080-51-00 NSFP 330805100

BENTLY NEVADA 81545-01 USPP 8154501

BENTLY NEVADA 89590-01 USPP 8959001

BENTLY NEVADA PWA88199-01 USPP PWA8819901

BENTLY NEVADA VIBRATION MONITOR PROTECTION 1900/27 100 MV/G 20G PEAK 43265


BENTLY NEVADA 81723-00-50-90?-02 NSFP 8172300509002

BENTLY NEVADA 330900-50-00 NSFP 3309005000

BENTLY NEVADA 72358-51 USPP 7235851

BENTLY NEVADA 7200-DVTP-R USPP 7200DVTPR

BENTLY NEVADA 7200-EIPP USPP 7200EIPP

BENTLY NEVADA 82365-01 USPP 8236501

BENTLY NEVADA 82366-01 USPP 8236601

NIB Bently Nevada 3000 Series 300 Proximitor 20929-07


NIB Bently Nevada HIGH TEMP 25 MM Proximitor 24654-04


NNB Bently Nevada 200mv Proximitor 3109-300 


BENTLY NEVADA 330102-00-60-1?0-02-01 NSFP 33010200601002

BENTLY NEVADA 330102-00-64-1?0-02-01 NSFP 33010200641002?01

BENTLY NEVADA 330102-00-72-1?0-02-01 NSFP 33010200721002?01

BENTLY NEVADA 81546-01 USPP 8154601

BENTLY NEVADA 21747-085-00 NSPP 2174708500

bently nevada 2201/02-02 MODULE SYSTEM MONITOR 1771 I/O

BENTLY NEVADA 330171-00-20-1?0-02-05 NSPP 33017100201002?05

BENTLY NEVADA 330171-00-08-0?5-02-05 NSPP 33017100080502?05

BENTLY NEVADA 330171-09-38-9?0-02-00 NSPP 33017109389002?00

BENTLY NEVADA 72053-01 USPP 7205301

BENTLY NEVADA 90478-01 USPP 9047801

BENTLY NEVADA 330100-90-00 USPP 3301009000

BENTLY NEVADA 3300/01 USPP 330001

BENTLY NEVADA 20929-01 USPP 2092901

1.00CT DIAMOND BAND RING. SIZE M. HALLMARKED. BROOKS & BENTLY
Returns: Accepted
Bently Nevada 124534-01 12453401 Custom Proximitor 24

BENTLY NEVADA 132306-02 NSPP 13230602

BENTLY NEVADA 21747-085-00 USPP 2174708500

BENTLY NEVADA 84157-01 USPP 8415701

BENTLY NEVADA 81544-01 NSPP 8154401

BENTLY NEVADA 330100-50-05 USPP 3301005005

BENTLY NEVADA 330100-90-05 USPP 3301009005

BENTLY NEVADA 84689-01 NSPP 8468901

BENTLY NEVADA 330100-50-02 USPP 3301005002

BENTLY NEVADA 16699 VELOCITY SEISMOPROBE VIBRATION SENSOR 500MV/IN/SEC 50585


BENTLY NEVADA 330101-00-08-0?5-02-01 NSFP 33010100080502?01

BENTLY NEVADA 126648-01 NSPP 12664801

BENTLY NEVADA 330102-00-16-0?5-02-00 NSFP 33010200160502?00

BENTLY NEVADA 133827-01 NSPP 13382701

BENTLY NEVADA 81546-01 SIGNAL INPUT RELAY CARD