IC200MDL743
IC200MDL743
IC200MDL743
IC200MDL743
不同的机构和不同的人可能对现场总线有着不同的定义，不过通常情况下，大家公认现场总线的本质体现在以下六个方面：
l 现场通信网络
用于过程自动化和制造自动化的现场设备或现场仪表互连的现场通信网络。
《联系人；欧先生》
《座机：》
《传真：》
《24小时热线：同步》
《 ：》
《邮@.com》
l 现场设备互联
依据实际需要使用不同的传输介质把不同的现场设备或者现场仪表相互关联。
l 互操作性
用户可以根据自身的需求选择不同厂家或不同型号的产品构成所需的控制回路，从而可以自由地集成FCS。
l 分散功能块
FCS 废弃了DCS 的输入/输出单元和控制站, 把DCS 控制站的功能块分散地分配给现场仪表, 从而构成虚拟控制站，彻底地实现了分散控制。
l 通信线供电
通信线供电方式允许现场仪表直接从通信线上摄取能量, 这种方式提供用于本质安全环境的低功耗现场仪表, 与其配套的还有安全栅。
l 开放式互联网络
现场总线为开放式互联网络，既可以与同层网络互联，也可与不同层网络互联，还可以实现网络数据库的共享。
从以上内容我们可以看到，现场总线体现了分布、开放、互联、高可靠性的特点，而这些正是DCS系统的缺点。DCS通常是一对一单独传送信号，其所采用的模拟信号精度低，易受干扰，位于操作室的操作员对模拟仪表往往难以调整参数和预测故障，处于“失控”状态，很多的仪表厂商自定标准，互换性差，仪表的功能也较单一，难以满足现代的要求，而且几乎所有的控制功能都位于控制站中。FCS则采取一对多双向传输信号，采用的数字信号精度高、可靠性强，设备也始终处于操作员的远程监控和可控状态，用户可以自由按需选择不同品牌种类的设备互联，智能仪表具有通信、控制和运算等丰富的功能，而且控制功能分散到各个智能仪表中去。由此我们可以看到FCS相对于DCS的巨大进步。
FISHER ROSEMOUNT 13B8793X012 NSFP 13B8793X012
FISHER ROSEMOUNT 1151GP3E22B2 USPP 1151GP3E22B2
FISHER ROSEMOUNT A41-CL300-3 USPP A41CL3003
FISHER ROSEMOUNT TL132 USPP TL132
FISHER ROSEMOUNT TL172 USPP TL172
FISHER ROSEMOUNT TL172 USPP TL172
FISHER ROSEMOUNT 0 USPP 01
FISHER ROSEMOUNT SCL-R-401-M2 USPP SCLR401M2
FISHER ROSEMOUNT 43B5452X042 USPP 43B5452X042
FISHER ROSEMOUNT 667-EZ USPP 667EZ
FISHER ROSEMOUNT 36A7633X022 USPP 36A7633X022
FISHER ROSEMOUNT 32-24588-CV28 USPP 32245881
FISHER ROSEMOUNT 1151DP3E12B2 USPP 1151DP3E12B2
FISHER ROSEMOUNT 863-1T001 NSPP 8631T001
FISHER ROSEMOUNT 46A3008-L54 NSPP 46A3008L54
FISHER ROSEMOUNT 1151DP3E12 USPP 1151DP3E12
FISHER ROSEMOUNT 1151GP6E22B1 NSFP 1151GP6E22B1
FISHER ROSEMOUNT DH7001X1-A4 NSPP DH7001X1A4
FISHER ROSEMOUNT CP6103X1-AA1 USPP CP6103X1AA1
FISHER ROSEMOUNT 667-34-3/4 NSPP 6673434
FISHER ROSEMOUNT 29B1674X012 NSFP 29B1674X012
FISHER ROSEMOUNT 1181PH USPP 1181PH
FISHER ROSEMOUNT 1151GP7E22B1M1 NSFP 1151GP7E22B1M1
FISHER ROSEMOUNT 1151DP5E22D3B1 USPP 1151DP5E22D3B1
FISHER ROSEMOUNT 1151DR2F22 NSFP 1151DR2F22
FISHER ROSEMOUNT NSPP
FISHER ROSEMOUNT 67AFD USPP 67AFD
FISHER ROSEMOUNT 7345-01 NSFP 734501
FISHER ROSEMOUNT CD5613X1-CD5 USPP CD5613X1CD5
FISHER ROSEMOUNT 1151GP7S22B1 NSFP 1151GP7S22B1
FISHER ROSEMOUNT 0068R21N00A030T22 USPP 0068R21N00A030T
FISHER ROSEMOUNT 1151GP3E12M2B1 USPP 1151GP3E12M2B1
FISHER ROSEMOUNT 1EUSPP 1E
FISHER ROSEMOUNT 0751AM3E5B USPP 0751AM3E5B
FISHER ROSEMOUNT R522H-4 NSFP R522H4
FISHER ROSEMOUNT 631688 USPP 631688
FISHER ROSEMOUNT 1151DR2F12B1 USPP 1151DR2F12B1
FISHER ROSEMOUNT 1151GP0S12B3M3 NSFP 1151GP0S12B3M3
FISHER ROSEMOUNT 1151DP3S12M2B3 USPP 1151DP3S12M2B3
FISHER ROSEMOUNT 1B1M7 USPP 1151GP7S22T12
FISHER ROSEMOUNT 1151GP7E22S1B1 NSFP 1151GP7E22S1B1
FISHER ROSEMOUNT 1151GP9S12B3M3 NSFP 1151GP9S12B3M3
FISHER ROSEMOUNT 1151DP3E12M1B1 USPP 1151DP3E12M1B1
FISHER ROSEMOUNT 1151DP3E22B3 NSFP 1151DP3E22B3
FISHER ROSEMOUNT USPP 444151
FISHER ROSEMOUNT 3661 NSFP 3661
FISHER ROSEMOUNT 444T-K2U1A2NA USPP 444TK2U1A2NA
FISHER ROSEMOUNT CL7661X1-BA5 USPP CL7661X1BA5
FISHER ROSEMOUNT 7345A-01 NSFP 7345A01
FISHER ROSEMOUNT 67 NSFP 67
FISHER ROSEMOUNT MCF0020 NSPP MCF0020
FISHER ROSEMOUNT DO 24 VDC HIGH SIDE KJ001X1-BJ1
FISHER ROSEMOUNT DO 24 VDC Isolated KJ001X1-BG1 678533
FISHER ROSEMOUNT DO 24 VDC Isolated KJ001X1-BG1 678534
Fisher Rosemount Pressure Transmitter 2088 G2A22A1B4
FISHER ROSEMOUNT 4102AM3 NSPP 4102AM3
FISHER ROSEMOUNT 1151AP8S52B1M3 USPP 1151AP8S52B1M3
FISHER ROSEMOUNT CL6853X1-A13 USPP CL6853X1A13
FISHER ROSEMOUNT R289HX00012 USPP R289HX00012
FISHER ROSEMOUNT 1VNSPP 1V
FISHER ROSEMOUNT 1UNSPP 1U
FISHER ROSEMOUNT 05 USPP
FISHER ROSEMOUNT TYPE HF240 AI HF200 S DIN RAIC FILTER
FISHER ROSEMOUNT 54-24-588S USPP 5424588S
FISHER ROSEMOUNT CP6701X1-DA2 USPP CP6701X1DA2
FISHER ROSEMOUNT KJ4001X1-BA1 USPP KJ4001X1BA1
FISHER ROSEMOUNT 9 USPP
FISHER ROSEMOUNT 6.5-2517 NSPP 652517
FISHER ROSEMOUNT 8732C-R12N0 USPP 8732CR12N0
FISHER ROSEMOUNT 36A3012X012-0 NSPP 36A3012X0120
FISHER ROSEMOUNT USPP
FISHER ROSEMOUNT 67AF/209 USPP 67AF209
FISHER ROSEMOUNT 32B7734X022 USPP 32B7734X022
FISHER ROSEMOUNT 3044CR-O USPP 3044CRO
FISHER ROSEMOUNT TL101 USPP TL101
FISHER ROSEMOUNT 2081PH USPP 2081PH
FISHER ROSEMOUNT 1UNSPP 1U
FISHER ROSEMOUNT SCL-C-008-M2 USPP SCLC008M2
FISHER ROSEMOUNT SCL-C-002-M2 USPP SCLC002M2
FISHER ROSEMOUNT 15A6490X052 NSFP 15A6490X052
FISHER ROSEMOUNT 4101AM3 NSPP 4101AM3
FISHER ROSEMOUNT 2700 USPP 2700
FISHER ROSEMOUNT 624602 USPP 624602
FISHER ROSEMOUNT 652816 NSPP 652816
FISHER ROSEMOUNT 9 USPP
FISHER ROSEMOUNT CL6011X1-B1 USPP CL6011X1B1
FISHER ROSEMOUNT4 NSFP4
FISHER ROSEMOUNT 041560 NSPP 041560
FISHER ROSEMOUNT 1051CD1A22A1ADF USPP 1051CD1A22A1ADF
FISHER ROSEMOUNT USPP 21008815
FISHER ROSEMOUNT 3001862 USPP 3001862
FISHER ROSEMOUNT 1 NSPP
FISHER ROSEMOUNT 622356 NSPP 622356
FISHER ROSEMOUNT 622605 USPP 622605
FISHER ROSEMOUNT 623875 USPP 623875
FISHER ROSEMOUNT 66-ZZ63 USPP 66ZZ63
FISHER ROSEMOUNT 9 USPP
FISHER ROSEMOUNT 92L13020 USPP 92L13020
FISHER ROSEMOUNT CL6521 USPP CL6521
FISHER ROSEMOUNT 40A0384C USPP 40A0384C
FISHER ROSEMOUNT 631773 NSFP 631773
FISHER ROSEMOUNT 631773 USPP 631773
FISHER ROSEMOUNT 656589B USPP 656589B
FISHER ROSEMOUNT 9 USPP
FISHER ROSEMOUNT DM6321 USPP DM6321
FISHER ROSEMOUNT CL7675X1-BA5 USPP CL7675X1BA5
FISHER ROSEMOUNT 244RF USPP 244RF
FISHER ROSEMOUNT 25A6683XNSPP 25A6683X0222807
FISHER ROSEMOUNT 32-24-588 NSPP 3224588
FISHER ROSEMOUNT 4100ZR NSPP 4100ZR
FISHER ROSEMOUNT 41B7284X012 USPP 41B7284X012
FISHER ROSEMOUNT 4211 USPP 4211
FISHER ROSEMOUNT 624207 USPP 624207
FISHER ROSEMOUNT 638490 USPP 638490