每个DCSFBM分组必须使用一对FCM100Et/FCM100E。在非冗余配置中，仅

每个分组需要一个FCM100Et/FCM100E。信号传输距离可达2公里（1.24英里）

FCM100Ets/FCM100E和以太网光纤交换机，提供DCS FBM设备分组的广泛分布。2 Mbps现场总线的大总电缆长度在一组内为60米（198英尺）。有关ZCP270的更多信息，

PSS 21H-1B10 B3。有关MCM100Et的更多信息，请参阅PSS 21H-2Y10 B4。有关FCM100E的更多信息，请参阅PSS 21H-2Y11 B4。与（CP60）/WFCM100e和DCSFBM的迁移WFCM10E是一个通信接口，允许DCS现场总线模块通过高速、可选冗余的10 Mbps以太网现场总线与CP60通信。WFCM10E将控制站使用的10 Mbps以太网信号转换为DCS现场总线模块使用的2 Mbps信号，反之亦然。WFCM10E还提供10 Mbps以太网现场总线和2 Mbps本地现场总线之间的电流隔离。WFCM10E成对用于冗余。一个WFCM10E（或一对WFCM10Es）可支持多达36个DCS现场总线模块。多可将30对WFCM10E连接到以太网现场总线。一个CP60上DCS FBM的大总数为120（取决于选定的扫描周期）。

WFCM10Ef现场总线通信模块是一种光纤通信接口，它允许DCS现场总线模块使用光纤连接与CP60进行远距离通信。WFCM10Ef提供扩展

网络化、易于定制以及光纤网络中更大的总布线距离。该配置非常适合DCS现场总线模块组分散在更远距离的现场。WFCM10Ef模块与多端口光纤转换器（集线器）一起使用，通过高速可选冗余10 Mbps以太网现场总线连接到CP60。多可将六组基板安装的WFCM10Ef模块和DCS现场总线模块连接到每个可选冗余集线器，每个CP60多可连接120个DCS现场总线组件（取决于选定的扫描周期）。为了支持冗余，每个DCS现场总线模块组必须使用一对WFCM10E模块。在非冗余配置中，每个分组只需要一个WFCM10Ef。信号传输距离可达2公里（1.24英里）

WFCM10Ef模块和集线器，提供DCS现场总线模块设备分组的广泛分布。在

用于本地现场总线的现场总线扩展模块（WFBE）将FCM连接到Q-Card嵌套中的Q-Card背板。WFBE还将Q-Cardnests之间的本地现场总线互连，并提供本地现场总线终端。使用WFCM10E或WFCM10Ef连接到CP60的迁移使用

FCP270简化了I/A系列体系结构。I/A系列体系结构只需要现场机柜、工作站和以太网交换机。有关MESH控制网络架构的更多信息，请参阅PSS 21H-7C2 B3。

现场安装的FCP270是高度分布式控制网络的组成部分，其中控制器与安装在其I/O和实际受控设备附近的特定工艺单元紧密对齐。工艺装置之间的协调通过光纤100 Mbps以太网进行。

FCP270封装在坚固的压铸铝外壳中，由于其高效设计，不需要通风。FCP270通过CE认证，安装时无需昂贵的专用机柜，以防止电子发射。FCP270可安装在G3级恶劣环境中。

增强的可靠性（容错性）FCP270的独特和专容错操作大大提高了相对于其他过程控制器的可靠性。FCP270的容错版本由两个并行运行的模块组成，两个以太网连接到MESH控制网络。两个FCP270模块作为容错对结合在一起，在该对中的一个模块内发生任何硬件故障的情况下，提供控制器的连续操作。

两个模块同时接收和处理信息，故障由模块自身检测。故障检测的重要方法之一是比较模块外部接口处的通信消息。

只有当两个控制器都同意发送的消息时（位对位匹配），消息才会离开控制器。检测到故障后，两个模块都会运行自我诊断，以确定哪个模块有故障。然后，无缺陷模块在不影响正常系统操作的情况下进行控制。

此容错解决方案具有a pair ofFCM100Ets/FCM100Es must be used for each DCSFBM grouping. In non-redundant configurations, only
a single FCM100Et/FCM100E is required for eachgrouping. Signal transmission distances up to2 kilometers (1 .24 miles) are possible between the
FCM100Ets/FCM100Es and Ethernet fiber switches,providing for wide distribution of the DCS FBMequipment groupings. The maximum total cablelength for the 2 Mbps Fieldbus is 60 m (198 ft) withina grouping.For more information on the ZCP270, refer to
PSS 21H-1B10 B3. For more information on theFCM100Et, refer to PSS 21H-2Y10 B4. For moreinformation on the FCM100E, refer toPSS 21H-2Y11 B4.Migration with (CP60)/WFCM10E and DCSFBMsThe WFCM10E is a communications interface whichallows the DCS Fieldbus Modules to communicatewith the CP60 via the high speed, optionallyredundant, 10 Mbps Ethernet Fieldbus. TheWFCM10E converts 10 Mbps Ethernet signals usedby the control station to 2 Mbps signals used by theDCS Fieldbus Modules, and vice versa. TheWFCM10E also provides galvanic isolation betweenthe 10 Mbps Ethernet Fieldbus and the 2 Mbps localFieldbus. The WFCM10Es are used in pairs forredundancy. A WFCM10E (or pair of WFCM10Es)can support up to 36 DCS Fieldbus Modules. Up to30 WFCM10E pairs can be connected to theEthernet Fieldbus. The maximum total number ofDCS FBMs on one CP60 is 120 (depending onselected scan periods).
The WFCM10Ef Fieldbus Communications Module isa fiber optic communications interface which allowsthe DCS Fieldbus Modules to communicate with theCP60 over extended distances using fiber opticcabling. The WFCM10Ef provides expanded
networking, easy customizing, and greater overallcabling distances in a fiber optic network. Thisconfiguration is ideally suited for sites in whichgroups of DCS Fieldbus Modules are to be spreadapart over greater distances. WFCM10Ef modulesare used with multiport fiber optic converters (hubs),which connect to the CP60 via the high speed,optionally redundant, 10 Mbps Ethernet Fieldbus. Upto six groupings of baseplate-mounted WFCM10Efmodules and DCS Fieldbus Modules can be linked toeach optionally redundant hub, for a maximum of120 DCS Fieldbus Modules per CP60 (depending onselected scan periods).To support redundancy, a pair of WFCM10Efmodules must be used for each DCS FieldbusModule grouping. In non-redundant configurations,only a single WFCM10Ef is required for eachgrouping. Signal transmission distances up to 2kilometers (1 .24 miles) are possible between the
WFCM10Ef modules and hubs, providing for widedistribution of the DCS Fieldbus Module equipmentgroupings. Extended transmission distances usingfiber optic cabling are also possible within the
groupings, and between the hubs and the CP60.A Fieldbus Extender Module (WFBE) for localFieldbus connects the FCMs to the Q-Cardbackplane in the Q-Card nest. The WFBE alsointerconnects the local Fieldbus between Q-Cardnests and provides local Fieldbus termination.Migration using the WFCM10E or WFCM10Ef forconnection to the CP60 is accomplished using the
The FCP270 flattens and simplifies the I/A Series architecture. The I/A Series architecture only requires field enclosures plus workstations and Ethernet switches. For more information on The MESH control network architecture, refer to PSS 21H-7C2 B3.
The field-mounted FCP270 is an integral part of the highly-distributed control network where controllers are closely aligned to specific process units mounted in close proximity to their I/O and the actual equipment being controlled. Coordination between process units takes place via a fiber optic 100 Mbps Ethernet network.
The FCP270 is packaged in a rugged, die cast aluminum housing that does not require venting due to its efficient design. The FCP270 is CE certified, and it can be mounted without expensive special cabinets to prevent electronic emissions. The FCP270 can be mounted in Class G3 harsh environments.
ENHANCED RELIABILITY (FAULTTOLERANCE)The unique and patented fault-tolerant operation of the FCP270 greatly improves reliability relative to other process controllers. The fault-tolerant version of the FCP270 consists of two modules operating in parallel, with two Ethernet connections to The MESH control network. The two FCP270 modules, married together as a fault-tolerant pair, provide continuous operation of the controller in the event of virtually any hardware failure occurring within one module of the pair.
Both modules receive and process information simultaneously, and faults are detected by the modules themselves. One of the significant methods of fault detection is comparison of communication messages at the module external interfaces.
Messages only leave the controller when both controllers agree on the message being sent (bit for bit match). Upon detection of a fault, self-diagnostics are run by both modules to determine which module is defective. The non-defective module then assumes control without affecting normal system operations.
This fault-tolerant solution has the following major advantages over controllers that are merely redundant: No bad messages are sent to the field or to applications using controller data because no message is allowed out of the controller unless both modules match bit for bit on the message being sent.
The secondary controller is synchronized with the primary one, which ensures up to the moment data in the event of a primary controller failure.The secondary controller will have latent flaws detected prior to any switchover because it is performing exactly the same operations as the primary controller.
SPLITTER/COMBINERFault-tolerant FCP270 modules connect to a pair of fiber optic splitter/combiners (see Figure 1) that connect to Ethernet switches in The MESH. For each module, the splitter/combiner pair provides separate transmit/receive fiber connections for Ethernet switch 1 and 2. Fiber cables are connected so that the splitter/combiners pass inbound traffic from either switch to both modules, and pass outbound traffic from the primary module to either switch.
The splitter/combiner pair mounts in an assembly that fastens to the baseplate. The splitter/combiner is a passive device that uses no electrical power.
ENHANCED COMMUNICATIONSThe I/A Series architecture uses The MESH control network with 100 Mbps data communications between the FCP270s and the Ethernet switches
FeaturesPerforms regulatory,